English Island
[#74] 7Timer! major upgrade project [EN]
May 6th
We can expect a new, powerful version of 7Timer! come into being later this year! As the 35km resolution data had been put into use in Feburary, it's now possible for us to upgrade the whole big model for a better performance. So now I'll give a "preview" of the new, powerful 7Timer!.
There would mainly be three products:
- 72-hour, local astronomical-class. It likes the "7Timer!-Panel2" very much, but only forecast 72-hour at a scale of 3 hours (or 60-hour? Not yet decide). It would also have forecast elements like cloud cover, seeing, transparency, etc, but the model will be upgraded. There's possibly that it would have a "atmospheric stability", from this you may know the possiblity of a particular shower. This element may be very useful during summer night. Other useful elements such as sky background maybe added. Output graph would be re-designed, as some users reported it's hard to use and not easy to recognize its elements.
- 384-hour, local daily use. It just like those common forecasts in our daily life, but it will use relatively high resolution data for forecast (0-180 hours would be 35km at a time scale of 3 hours, 192-384 hours would be 175km at a time scale of 12 hours as it's just a "trend" forecast). Elements such as precipitation, temperature, humidity, wind would be there. There may also be a kind of "sky conditions" which tell you the cloud cover, for it maybe useful for you to decide whether to put on a hat to protect sunlight. Visiblity (quite alike "transparency" in the astronomical-class forecast) may also appeared. High time resolution (generaly 3-hour), exellent coverage (any place at anywhere over the world -- you could just request one for your own place, no need to find a nearby big city and see its forecast), exellent time coverage (16 days, and it's free), made it superior to other similar weather services.
- 384-hour, multiple elements, weather maps. Similar to the "Weather Map" service now, but there would be more elements, longer time coverage up to 384-hour (16 days).
After the repairments of the Auto-run Program (ArP), server administrator confirmed the program won't bring any majoy bugs to the server, and allow ArP to have some upgrade. So there may be two runs on each day, 00Z and 12Z. First batch would be proceed from 4h to 8h30m UT, and the products would released around 8-9hUT; the second batch would be proceed from 16h to 20h30m UT, and the products would be released round 20-21h UT. The whole website and control files would be rewrite, as I have many big progress these weeks in php field (:-P). I'm confidence I'm now able to conduct some "big" php projects. (Actually, some big projects had been done in recent months)
The plan is big, you see, and I expect at least two or three months would be spent until we can see its Alpha release, I'll report the progress here. This project is now started yet, and it maybe started in mid or late May.
No more on Pluto, okay?
Mar 29th
I was never willing to write English sentences in my "Coconut Essay" box, but now I intend to do so, just because I read a quite notable essay by some lovely outsiders, again talk about the Pluto topic.
Not simply a essay, though, it's actually someone declaring something at the legislature of somewhere, "declaring March 13, 2007 to be Planet Pluto Day". However, at my side, it seems to be funny. Declaring Pluto to be a planet at a legislature? Are you talking about a childhood story?
But it is real, the state of New Mexico had done it, you may see the original text here: http://legis.state.nm.us/Sessions/07%20Regular/memorials/house/HJM054.html. And seems those guys are making it seems to be, like, Pluto was murdered in Prague last year.
I should take notes on this. There are enough discussions about Pluto, and we astronomers need hard works, not useless word-games. The "Pluto vote" had decided everything that is necessary to be answered, and if you are not satisfying with the decision by IAU, you could just set up your own observatory and use your own star catalogs. For Pluto itself, it's still alive, it's just a dwarf planet than classical now. What's the real difference between a drawf planet or a classical one? Maybe the guys at the legislature know well. However, no difference other than a "134340" permanent number was assigned to Pluto in astronomers' eyes.
And, in my opinion, "Pluto issue" is more than a "astronomical issue" in the states. Indeed, as the state of New Mexico declared, New Mexico plays a very important role in astronomy. But haven't the guys at New Mexico contribute enough great things to astronomy? I mean, do they really need such a thing as "Planet Pluto Day" to extra their contribution?
So, dear sirs, no more on "Planet Pluto" anymore, okay? We have many many things of much importances to do. Thanks to Tombaugh for his great discovery, and thanks to Gutierrez on his beautiful poem, and we should go on setting up the telescope tonight and enlarging our knowledge. Pluto is indeed 3,695,950,000 miles from the sun and its diameter is indeed 1,420 miles and New Horizons is indeed flying towards it. And, it's indeed a member of our solar system as a drawf planet as we know today.
Internet usage of the undergraduate students in Sun Yat-sen University, survey and results
Nov 19th
Title: Internet usage of the undergraduate students in Sun Yat-sen University, survey and results
Authors: Ye, Q.-z. and Rong, L.-x.
Publication Date: 11/2006
Abstract: After analyzing the result of a questionnaire and compare it to other results from similar surveys, we found that the students of Sun Yat-sen University have similar habitats with other net users, as they spent much time on net,, and will go to spend more as well. Quite a number of them are addicted to the net. However, compare to other net users, they would devote more time on serious works, it means they can make a better use of the internet services.
LUSSEC 26: POTENTIAL NEAR-EARTH OBJECT QY67872, NEW DISCOVERIES
Jul 9th
Lulin Sky Survey Electronic Circular No. 26
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 July 9, 0:24 UT
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POTENTIAL NEAR-EARTH OBJECT QY67872, NEW DISCOVERIES
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POTENTIAL NEAR-EARTH OBJECT QY67872
H. C. Lin and Q. Ye, found a potential Near-Earth object in the scan field taken on July 7.6 (UT).
Q. Ye commented this object was \"faint\", appeared as a 25\" line in the image. This object appeared on the Near-Earth Objects Confirmation Page (NEOCP) on July 8.63 (UT). Approximately positions:
QY67872 tC2006 07 07.60656 19 40 24.35 -28 54 07.6 20.1 V D35
As this object moved fast(about 15\"/min.) and it\'s close to the moon, recovery chance is low.
QY67872 is the first potential Near-Earth object found by Lulin Sky Survey.
NEW DISCOVERIES
#LUSS Designation Discovered date (UT) Discoverer(s)
63 2006 MP14 June 30, 2006 C. S. Lin, Q. Ye
64(*) 2006 NR July 4, 2006 C. S. Lin, Q. Ye
(*) Credit change to 2002 VO113.
2006 NR is the first entire automatic discovery made by Lulin Sky Survey.
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 26
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LUSSEC 24: ORBIT UPDATE
Jun 30th
Lulin Sky Survey Electronic Circular No. 24
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 30, 11:21 UT
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ORBIT UPDATE
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K06E67M 15.6 0.15 K0636 315.85310 271.41350 345.66692 10.85682 0.1857879 0.21658564 2.7460996 1 E2006-K42 59 5 1992-2006 0.49 M-v 38h MPC 0000 2006 EM67 20060516
K06E67K 17.2 0.15 K0636 27.30387 129.54250 12.42579 13.56912 0.1993488 0.22393982 2.6856444 E2006-G22 16 1 18 days 0.39 MPC 0000 2006 EK67 20060328
K06E67L 16.4 0.15 K0636 40.88471 79.47267 51.29469 3.30300 0.1447733 0.21622247 2.7491736 3 E2006-K42 30 2 2004-2006 0.61 M-v 38h MPC 0000 2006 EL67 20060401
K06F00A 16.1 0.15 K0636 359.84806 356.88022 179.22885 10.51639 0.1824612 0.18745853 3.0236574 4 E2006-J43 37 1 68 days 0.70 M-v 38h MPC 0000 2006 FA 20060504
K06F35N 18.7 0.15 K0636 76.50690 276.46898 185.08981 22.90207 0.0352918 0.34772903 2.0028208 E2006-G02 9 1 21 days 0.19 MPC 0000 2006 FN35 20060330
K06F35P 16.7 0.15 K0636 0.24522 176.18651 12.82223 9.38573 0.2269845 0.26495708 2.4007800 3 E2006-J26 53 2 2002-2006 0.63 M-v 38h MPC 0000 2006 FP35 20060505
K06F35Q 16.7 0.15 K0636 356.38269 11.18335 205.35377 5.24468 0.1649952 0.22974324 2.6402247 4 E2006-L23 39 1 66 days 0.47 M-v 38h MPC 0000 2006 FQ35 20060602
K06F35R 16.8 0.15 K063Q 260.36086 42.11580 262.03350 5.63177 0.1304710 0.26238273 2.4164578 E2006-H32 10 1 22 days 0.66 MPC 0000 2006 FR35 20060420
K06F35S 16.1 0.15 K064F 76.95228 56.04258 69.33367 9.71067 0.0441859 0.22072997 2.7116180 E2006-J39 18 1 40 days 0.15 MPC 0000 2006 FS35 20060508
K06G00E 16.7 0.15 K0636 328.79864 143.69634 76.30777 2.59723 0.1082364 0.29444426 2.2376938 2 E2006-K20 44 4 2000-2006 0.64 M-v 38h MPC 0000 2006 GE 20060519
K06G00F 17.6 0.15 K0636 295.17814 96.24331 160.95660 5.13027 0.0803253 0.26134174 2.4228705 2 E2006-K11 33 4 1998-2006 0.66 M-v 38h MPC 0000 2006 GF 20060512
K06G00H 17.4 0.15 K063Q 290.78398 206.35188 68.18417 3.33086 0.1418059 0.24388153 2.5371732 E2006-H32 13 1 19 days 0.45 MPC 0000 2006 GH 20060420
K06G00J 15.5 0.15 K0636 282.44560 187.63319 105.95100 6.19173 0.1404831 0.22120117 2.7077658 1 E2006-K64 62 6 1992-2006 0.55 M-v 38h MPC 0000 2006 GJ 20060526
K06G00K 15.9 0.15 K0636 343.54383 55.92065 158.80992 9.19046 0.0847871 0.23799603 2.5788311 3 E2006-J11 66 3 2002-2006 0.61 M-v 38h MPC 0000 2006 GK 20060501
K06G00M 16.9 0.15 K063Q 340.36618 130.25899 88.93848 2.64325 0.2016863 0.17177241 3.2050424 E2006-H32 13 1 19 days 0.51 MPC 0000 2006 GM 20060420
K06G02F 16.4 0.15 K063Q 263.67705 297.98876 357.05971 5.79294 0.1491421 0.29544528 2.2326365 E2006-H32 9 1 15 days 0.29 MPC 0000 2006 GF2 20060418
K06G02R 17.9 0.15 K064F 315.11346 217.80049 39.40147 21.70477 0.0567472 0.35739242 1.9665537 E2006-K01 21 1 34 days 0.82 MPC 0000 2006 GR2 20060508
K06G37M 17.4 0.15 K064F 352.57234 171.92728 47.44553 17.01305 0.1907833 0.22614426 2.6681628 E2006-K44 19 1 50 days 0.50 MPC 0000 2006 GM37 20060524
K06H20Y 16.6 0.15 K0636 289.45302 85.42068 195.66297 12.67455 0.1558929 0.17988719 3.1079156 2 E2006-K64 31 3 2001-2006 0.49 M-v 38h MPC 0000 2006 HY20 20060503
K06H30Y 15.8 0.15 K0655 317.85909 182.80190 96.58865 4.34889 0.1957802 0.17979820 3.1089411 E2006-M41 17 1 67 days 0.62 MPC 0000 2006 HY30 20060624
K06H30Z 15.9 0.15 K0655 301.84876 80.47751 212.46952 13.97123 0.1297766 0.18143140 3.0902557 E2006-M41 23 1 82 days 0.42 MPC 0000 2006 HZ30 20060623
K06H31A 16.2 0.15 K0655 352.98807 186.09379 44.08749 13.69258 0.1275323 0.19236232 2.9720495 E2006-M41 23 1 64 days 0.39 MPC 0000 2006 HA31 20060623
K06K38X 15.5 0.15 K065P 285.30858 304.55297 72.53465 8.92639 0.4461535 0.18231652 3.0802457 E2006-K64 10 1 4 days 0.40 MPC 0000 2006 KX38 20060526
K06K38Y 19.8 0.15 K065P 351.03145 26.44878 241.63639 6.82322 0.3801310 0.27645629 2.3337360 E2006-M08 18 1 24 days 0.60 MPC 0000 2006 KY38 20060615
K06K39A 15.0 0.15 K0636 20.53162 124.78599 78.07365 15.41280 0.1647302 0.16441769 3.2999221 0 E2006-M47 58 5 2001-2006 0.52 M-v 38h MPC 0000 2006 KA39 20060622
K06K67U 16.1 0.15 K0636 310.10353 162.09520 137.61109 1.50540 0.1762785 0.17822804 3.1271739 1 E2006-M22 45 6 1994-2006 0.59 M-v 38h MPC 0000 2006 KU67 20060620
K06K67W 17.9 0.15 K0636 314.06141 34.66582 249.78439 4.59885 0.1860374 0.27450242 2.3447971 2 E2006-M36 28 3 2002-2006 0.45 M-v 38h MPC 0000 2006 KW67 20060615
K06K67X 16.4 0.15 K0636 326.76487 120.61799 145.97302 8.06732 0.1706253 0.23531082 2.5984126 1 E2006-M22 44 6 1993-2006 0.71 M-v 38h MPC 0000 2006 KX67 20060619
K06M13F 16.9 0.15 K066E 24.71248 145.09644 77.64652 7.34042 0.0773448 0.29216571 2.2493130 E2006-M47 9 1 9 days 0.28 MPC 0000 2006 MF13 20060625
K06M13M 18.9 0.15 K066E 22.94448 226.19560 18.97760 1.69261 0.1588091 0.27050545 2.3678383 E2006-M47 7 1 4 days 0.60 MPC 0000 2006 MM13 20060625
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 24
LUSSEC 23: NEW DISCOVERIES
Jun 27th
Lulin Sky Survey Electronic Circular No. 23
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 27, 23:14 UT
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NEW DISCOVERIES
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#LUSS Designation Discovered date (UT) Discoverer(s)
47 2006 MF12 June 21, 2006 C. S. Lin, Q. Ye
48 2006 MG12 June 21, 2006 C. S. Lin, Q. Ye
49 2006 MY12 June 23, 2006 T. C. Yang, Q. Ye
50 2006 MZ12 June 23, 2006 T. C. Yang, Q. Ye
51 2006 MA13 June 23, 2006 T. C. Yang, Q. Ye
52 2006 MB13 June 23, 2006 T. C. Yang, Q. Ye
53 2006 MC13 June 23, 2006 T. C. Yang, Q. Ye
54 2006 MD13 June 23, 2006 T. C. Yang, Q. Ye
55 2006 MF13 June 23, 2006 T. C. Yang, Q. Ye
56 2006 MH13 June 23, 2006 T. C. Yang, Q. Ye
57 2006 MJ13 June 23, 2006 T. C. Yang, Q. Ye
58 2006 MK13 June 23, 2006 T. C. Yang, Q. Ye
59 2006 ML13 June 23, 2006 T. C. Yang, Q. Ye
60 2006 MM13 June 23, 2006 T. C. Yang, Q. Ye
61 2006 MN13 June 23, 2006 T. C. Yang, Q. Ye
62 2006 MO13 June 23, 2006 T. C. Yang, Q. Ye
63 2006 MP13 June 23, 2006 T. C. Yang, Q. Ye
There are still 12 one-nighters waiting for confirmations at this time.
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 23
LUSSEC 22: NEW DISCOVERIES
Jun 24th
Lulin Sky Survey Electronic Circular No. 22
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 24, 10:32 UT
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NEW DISCOVERIES
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#LUSS Designation Discovered date (UT) Discoverer(s)
45 2006 KB118 May 23, 2006 H. C. Lin, Q. Ye
46 2006 LM5 June 15, 2006 H. C. Lin, Q. Ye
There are 31 1-nighters wait for confirmations, and 3 2-nighters found by C. S. Lin and Q. Ye are waiting designations at this time.
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 22
LUSSEC 21: CONFIRMATIONS ON C/2006 M2 (SPACEWATCH), 2006 KX38
Jun 23rd
Lulin Sky Survey Electronic Circular No. 21
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 23, 2:29 UT
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CONFIRMATIONS ON C/2006 M2 (SPACEWATCH), 2006 KX38
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CONFIRMATIONS ON C/2006 M2 (SPACEWATCH)
On June 20.66, 2006, C. S. Lin and Q. Ye observed an NEOCP object SW40XA, which latter proved to be a new comet, which was discovered by R. S. McMillan of Spacewatch Project, U.S.A. The discovery was annouced in IAUC 8725 and the observations were published in MPEC 2006-M27. Here are the observations of Lulin Sky Survey:
CK06M020 C2006 06 20.65718 16 02 05.22 +02 11 15.4 20.9 N EM027D35
CK06M020 C2006 06 20.66800 16 02 04.62 +02 11 13.7 19.7 N EM027D35
We did not reconized any cometary appearance of the object. The object is faint, star-like, a little bit diffuse on our image. The image of C/2006 M2, taken by C. S. Lin and proceed by Q. Ye, can be view here: http://csc.lamost.org/yeiht/wordpress/index.php?page_id=140&file=Lulin%20Sky%20Survey/sw40xas001r0011.PNG.
On June 22, J. Young and R. S. McMillan respectively used Table Moutain's 0.6-m f/16 and Kitt Peak's 1.8m f/2.7 telescope, confirmed that the object has a 4"-6" coma. The object is now 4.6 AU away from the Earth, it has passed the perihelion on late 2005 at about 5.2 AU.
2006 KX38
On June 15, H. C. Lin and Q. Ye failed to do a follow-up observations for a unusual LUSS object, 2006 KX38. As the orbit published in LUSSEC 20, 2006 KX38 was a unusual asteroid with e=0.45. It's possible that this object is a comet, as Q. Ye reported it was "diffuse" (LUSSEC 15). However, the failure on follow-up prove that the orbit was bad. We should go to re-check the previous observations. The orbit is based on a 4-day observations from May 22-26.
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 21
LUSSEC 20: ORBIT UPDATE
Jun 16th
Lulin Sky Survey Electronic Circular No. 20
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 16, 7:48 UT
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ORBIT UPDATE
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K06E67M 15.6 0.15 K0636 315.85310 271.41350 345.66692 10.85682 0.1857879 0.21658564 2.7460996 1 E2006-K42 59 5 1992-2006 0.49 M-v 38h MPC 0000 2006 EM67 20060516
K06E67K 17.2 0.15 K0636 27.30387 129.54250 12.42579 13.56912 0.1993488 0.22393982 2.6856444 E2006-G22 16 1 18 days 0.39 MPC 0000 2006 EK67 20060328
K06E67L 16.4 0.15 K0636 40.88471 79.47267 51.29469 3.30300 0.1447733 0.21622247 2.7491736 3 E2006-K42 30 2 2004-2006 0.61 M-v 38h MPC 0000 2006 EL67 20060401
K06F00A 16.1 0.15 K0636 359.84806 356.88022 179.22885 10.51639 0.1824612 0.18745853 3.0236574 4 E2006-J43 37 1 68 days 0.70 M-v 38h MPC 0000 2006 FA 20060504
K06F35N 18.7 0.15 K0636 76.50690 276.46898 185.08981 22.90207 0.0352918 0.34772903 2.0028208 E2006-G02 9 1 21 days 0.19 MPC 0000 2006 FN35 20060330
K06F35P 16.7 0.15 K0636 0.24522 176.18651 12.82223 9.38573 0.2269845 0.26495708 2.4007800 3 E2006-J26 53 2 2002-2006 0.63 M-v 38h MPC 0000 2006 FP35 20060505
K06F35Q 16.7 0.15 K0636 356.38269 11.18335 205.35377 5.24468 0.1649952 0.22974324 2.6402247 4 E2006-L23 39 1 66 days 0.47 M-v 38h MPC 0000 2006 FQ35 20060602
K06F35R 16.8 0.15 K063Q 260.36086 42.11580 262.03350 5.63177 0.1304710 0.26238273 2.4164578 E2006-H32 10 1 22 days 0.66 MPC 0000 2006 FR35 20060420
K06F35S 16.1 0.15 K064F 76.95228 56.04258 69.33367 9.71067 0.0441859 0.22072997 2.7116180 E2006-J39 18 1 40 days 0.15 MPC 0000 2006 FS35 20060508
K06G00E 16.7 0.15 K0636 328.79864 143.69634 76.30777 2.59723 0.1082364 0.29444426 2.2376938 2 E2006-K20 44 4 2000-2006 0.64 M-v 38h MPC 0000 2006 GE 20060519
K06G00F 17.6 0.15 K0636 295.17814 96.24331 160.95660 5.13027 0.0803253 0.26134174 2.4228705 2 E2006-K11 33 4 1998-2006 0.66 M-v 38h MPC 0000 2006 GF 20060512
K06G00H 17.4 0.15 K063Q 290.78398 206.35188 68.18417 3.33086 0.1418059 0.24388153 2.5371732 E2006-H32 13 1 19 days 0.45 MPC 0000 2006 GH 20060420
K06G00J 15.5 0.15 K0636 282.44560 187.63319 105.95100 6.19173 0.1404831 0.22120117 2.7077658 1 E2006-K64 62 6 1992-2006 0.55 M-v 38h MPC 0000 2006 GJ 20060526
K06G00K 15.9 0.15 K0636 343.54383 55.92065 158.80992 9.19046 0.0847871 0.23799603 2.5788311 3 E2006-J11 66 3 2002-2006 0.61 M-v 38h MPC 0000 2006 GK 20060501
K06G00M 16.9 0.15 K063Q 340.36618 130.25899 88.93848 2.64325 0.2016863 0.17177241 3.2050424 E2006-H32 13 1 19 days 0.51 MPC 0000 2006 GM 20060420
K06G02F 16.4 0.15 K063Q 263.67705 297.98876 357.05971 5.79294 0.1491421 0.29544528 2.2326365 E2006-H32 9 1 15 days 0.29 MPC 0000 2006 GF2 20060418
K06G02R 17.9 0.15 K064F 315.11346 217.80049 39.40147 21.70477 0.0567472 0.35739242 1.9665537 E2006-K01 21 1 34 days 0.82 MPC 0000 2006 GR2 20060508
K06G37M 17.4 0.15 K064F 352.57234 171.92728 47.44553 17.01305 0.1907833 0.22614426 2.6681628 E2006-K44 19 1 50 days 0.50 MPC 0000 2006 GM37 20060524
K06H20Y 16.6 0.15 K0636 289.45302 85.42068 195.66297 12.67455 0.1558929 0.17988719 3.1079156 2 E2006-K64 31 3 2001-2006 0.49 M-v 38h MPC 0000 2006 HY20 20060503
K06H30Y 15.8 0.15 K064F 314.39878 182.70145 96.60777 4.34624 0.1965957 0.17974539 3.1095500 E2006-K14 15 1 27 days 0.59 MPC 0000 2006 HY30 20060516
K06H30Z 15.8 0.15 K064F 298.14740 80.55788 212.47320 13.97936 0.1298029 0.18140615 3.0905424 E2006-K81 20 1 58 days 0.31 MPC 0000 2006 HZ30 20060530
K06H31A 16.2 0.15 K0655 353.04861 186.01361 44.08596 13.69907 0.1273984 0.19234253 2.9722534 E2006-L01 21 1 40 days 0.36 MPC 0000 2006 HA31 20060531
K06K38X 15.5 0.15 K065P 285.30858 304.55297 72.53465 8.92639 0.4461535 0.18231652 3.0802457 E2006-K64 10 1 4 days 0.40 MPC 0000 2006 KX38 20060526
K06K38Y 19.6 0.15 K065P 351.03345 26.47414 241.64165 6.83196 0.3806960 0.27594042 2.3366437 E2006-L43 16 1 18 days 0.91 MPC 0000 2006 KY38 20060609
K06K39A 15.0 0.15 K065P 40.89311 120.64719 77.40617 17.30512 0.1211844 0.16420223 3.3028082 E2006-K72 14 1 6 days 0.31 MPC 0000 2006 KA39 20060528
K06K67W 18.1 0.15 K065P 341.20604 26.82713 249.64735 4.34278 0.1776929 0.28312273 2.2969571 E2006-L52 10 1 10 days 0.37 MPC 0000 2006 KW67 20060604
K06K67X 16.2 0.15 K065P 345.61630 120.57805 145.96754 8.06736 0.1704605 0.23534540 2.5981581 E2006-M01 13
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 20
LUSSEC 19: 2006 KY38
Jun 6th
Lulin Sky Survey Electronic Circular No. 19
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 June 6, 8:19 UT
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2006 KY38
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Epoch 2006 May 25.0 TT = JDT 2453880.5 MPC
M 351.04376 (2000.0) P Q
n 0.27583875 Peri. 26.45435 -0.03598914 +0.99385029 T = 2453912.96910 JDT
a 2.3372179 Node 241.64288 -0.93668396 -0.07007031 q = 1.4472533
e 0.3807794 Incl. 6.83439 -0.34832160 +0.08574237 Earth MOID = 0.43550 AU
P 3.57 H 19.6 G 0.15
From 11 observations 2006 May 22-June 5.
Residuals
20060522 *D35 0.0- 0.4+ 20060529 704 1.0- 2.7- 20060605 704 0.0- 0.8-
20060522 D35 0.0- 0.5- 20060529 704 0.4- 3.3- 20060605 704 0.7+ 0.3+
20060525 D35 0.0- 0.2- 20060529 704 0.5+ 0.3+ 20060605 704 1.2+ 0.2+
20060525 D35 0.1+ 0.5+ 20060529 704 0.5- 0.4-
20060525 D35 0.1- 0.2- 20060605 704 1.9- 0.3+
Minor Planet Center published a update orbit of 2006 KY38 in MPEC 2006-L33. Now definitely the object is not an Amor group, but an Alinda group member. Alindas are held by the 1:3 resonance with Jupiter. If I understand what's happening here, an object that enters this resonance has its eccentricity steadily pumped up, until it eventually has a close encounter with an inner planet that breaks the resonance. Some Alindas, such as (4179) Toutatis, have perihelia very close to the earth's orbit, the result is a series of close passes at four-year intervals.
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Quanzhi Ye (C) Copyright 2006 Lulin Sky Survey LUSSEC 19
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