MPEC 2023-D77 : COMET C/2023 A3 (Tsuchinshan-ATLAS)
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Read MPEC 2023-D76
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M.P.E.C. 2023-D77 Issued 2023 February 28, 23:54 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2023 A3 (Tsuchinshan-ATLAS)
Q.-Z. Ye reports cometary activity of an asteroidal NEOCP candidate
(initially reported by ATLAS South Africa - M22 on Feb. 22 UT) in prediscovery
images obtained by Palomar Mountain-ZTF (I41) on Dec 12, 2022 UT, noting
a very condensed 2" coma and a straight 10" tail at position angle 230-250 deg.
The object was independently discovered on Jan. 9 UT at Purple Mountain
Observatory, XuYi Station (D29). Additional reports of cometary features are
as follows:
OC Date Reporter Coma Tail PA Exposures
Q62 2023-02-25 R. Fidrich 9"
Q62 2023-02-23 H. Sato 6" 6x120s
V21 2023-02-27 D. T. Durig 8"
Y00 2023-02-28 C. Jacques 11" 100x30s
Observations:
CK23A030 C2022 12 22.55184 15 14 06.74 -02 15 07.4 19.4 r ED077I41
CK23A030 C2022 12 22.55434 15 14 06.78 -02 15 07.4 19.6 r ED077I41
CK23A030 C2022 12 22.55683 15 14 06.83 -02 15 07.4 19.4 r ED077I41
CK23A030 C2022 12 22.55933 15 14 06.87 -02 15 07.4 19.2 r ED077I41
CK23A030 C2022 12 22.56183 15 14 06.94 -02 15 07.7 19.3 r ED077I41
CK23A030* C2023 01 09.89711915 19 15.64 -02 18 29.4 18.7 RVED077D29
CK23A030 C2023 01 09.90663115 19 15.84 -02 18 29.1 19.0 RVED077D29
CK23A030 C2023 01 09.91614315 19 15.95 -02 18 29.4 19.0 RVED077D29
CK23A030 C2023 02 22.08359015 22 38.198-01 22 22.08 18.03oVED077M22
CK23A030 C2023 02 22.08675415 22 38.172-01 22 21.61 18.17oVED077M22
CK23A030 C2023 02 22.09262715 22 38.114-01 22 20.82 18.06oVED077M22
CK23A030 C2023 02 22.10270815 22 38.069-01 22 19.09 18.11oVED077M22
CK23A030 C2023 02 23.02836 15 22 31.46 -01 20 07.8 18.2 GVED077M28
CK23A030 C2023 02 23.03053 15 22 31.45 -01 20 07.4 18.2 GVED077M28
CK23A030 C2023 02 23.03269 15 22 31.43 -01 20 07.0 18.2 GVED077M28
CK23A030 C2023 02 23.22846415 22 30.066-01 19 39.32 16.7 GVED077W57
CK23A030 C2023 02 23.23077315 22 30.036-01 19 38.87 16.6 GVED077W57
CK23A030 C2023 02 23.29576815 22 29.546-01 19 30.00 18.42cVED077W68
CK23A030 |C2023 02 23.30860 15 22 29.43 -01 19 28.2 18.4 VuED077807
CK23A030 C2023 02 23.31345715 22 29.386-01 19 27.26 18.47cVED077W68
CK23A030 |C2023 02 23.31633 15 22 29.36 -01 19 27.1 18.3 VuED077807
CK23A030 C2023 02 23.31664415 22 29.354-01 19 27.37 18.43cVED077W68
CK23A030 KC2023 02 23.32146 15 22 29.32 -01 19 26.0 18.3 VqED077I47
CK23A030 |C2023 02 23.32405 15 22 29.33 -01 19 25.9 18.4 VuED077807
CK23A030 C2023 02 23.33387815 22 29.213-01 19 24.17 18.40cVED077W68
CK23A030 KC2023 02 23.34175 15 22 29.20 -01 19 23.3 18.3 VqED077I47
CK23A030 KC2023 02 23.69311 15 22 26.411-01 18 33.34 17.3 VqED077Q21
CK23A030 KC2023 02 23.70388 15 22 26.345-01 18 32.96 17.8 VqED077Q21
CK23A030 1C2023 02 23.75190 15 22 26.01 -01 18 24.5 VED077Q62
CK23A030 1C2023 02 23.75496 15 22 26.00 -01 18 24.0 VED077Q62
CK23A030 1C2023 02 23.75802 15 22 25.98 -01 18 23.3 18.1 GVED077Q62
CK23A030 C2023 02 24.12486 15 22 23.09 -01 17 30.1 18.3 GVED077M28
CK23A030 C2023 02 24.13508 15 22 23.00 -01 17 28.6 18.3 GVED077M28
CK23A030 V2023 02 24.30663215 22 21.597-01 17 03.73 18.2 GVED077247
CK23A030 v2023 02 24.3066321 289.1448 -30.5278 1710 ED077247
CK23A030 KV2023 02 24.31331015 22 21.552-01 17 02.90 18.2 GVED077247
CK23A030 v2023 02 24.3133101 289.1448 -30.5278 1710 ED077247
CK23A030 V2023 02 24.31998815 22 21.494-01 17 01.81 18.2 GVED077247
CK23A030 v2023 02 24.3199881 289.1448 -30.5278 1710 ED077247
CK23A030 C2023 02 24.35774 15 22 21.17 -01 16 56.5 17.9 GVED077W89
CK23A030 C2023 02 24.36136 15 22 21.14 -01 16 56.0 18.2 GVED077W89
CK23A030 C2023 02 24.36499 15 22 21.11 -01 16 55.4 18.1 GVED077W89
CK23A030 KC2023 02 24.40725615 22 20.76 -01 16 50.5 18.4 GVED077H21
CK23A030 KC2023 02 24.41276715 22 20.71 -01 16 49.6 18.2 GVED077H21
CK23A030 KC2023 02 24.41658815 22 20.68 -01 16 49.2 18.3 GVED077H21
CK23A030 KC2023 02 24.42405015 22 20.61 -01 16 48.1 18.3 GVED077H21
CK23A030 KC2023 02 24.43401115 22 20.54 -01 16 46.3 XED077858
CK23A030 KC2023 02 24.44370015 22 20.47 -01 16 45.0 17.8 GXED077858
CK23A030 KC2023 02 24.45341215 22 20.39 -01 16 43.6 17.8 GXED077858
CK23A030 C2023 02 24.68072 15 22 18.51 -01 16 08.8 17.8 GVED077Q59
CK23A030 C2023 02 24.68437 15 22 18.48 -01 16 08.6 18.0 GVED077Q59
CK23A030 C2023 02 24.68801 15 22 18.45 -01 16 07.9 18.0 GVED077Q59
CK23A030 dC2023 02 24.70229215 22 18.316-01 16 05.67 18.1 GVED077Q62
CK23A030 dC2023 02 24.71022615 22 18.249-01 16 04.73 17.9 GVED077Q62
CK23A030 dC2023 02 24.71816015 22 18.168-01 16 03.45 18.1 GVED077Q62
CK23A030 KC2023 02 24.79578 15 22 17.398-01 15 55.07 17.9 VqED077Q21
CK23A030 KC2023 02 24.80102 15 22 17.563-01 15 52.72 17.8 VqED077Q21
CK23A030 KC2023 02 24.81153 15 22 17.314-01 15 50.38 18.0 VqED077Q21
CK23A030 C2023 02 25.26789 15 22 13.42 -01 14 43.6 18.0 GVED077Z21
CK23A030 C2023 02 25.27153 15 22 13.39 -01 14 42.9 18.2 GVED077Z21
CK23A030 C2023 02 25.27518 15 22 13.36 -01 14 42.4 18.1 GVED077Z21
CK23A030 V2023 02 25.31237 15 22 13.09 -01 14 35.7 18.1 GVED077247
CK23A030 v2023 02 25.31237 1 289.1467 -30.5263 1710 ED077247
CK23A030 V2023 02 25.32238 15 22 12.99 -01 14 34.3 18.1 GVED077247
CK23A030 v2023 02 25.32238 1 289.1467 -30.5263 1710 ED077247
CK23A030 C2023 02 25.60112815 22 10.500-01 13 53.98 18.37cVED077T05
CK23A030 C2023 02 25.63226015 22 10.181-01 13 48.79 18.14cVED077T05
CK23A030 C2023 02 25.63846015 22 10.178-01 13 47.86 18.53cVED077T05
CK23A030 C2023 02 25.65473815 22 09.979-01 13 45.59 18.24cVED077T05
CK23A030 KC2023 02 25.69723 15 22 09.663-01 13 39.16 17.4 VqED077Q21
CK23A030 KC2023 02 25.70773 15 22 09.436-01 13 38.04 17.3 VqED077Q21
CK23A030 2C2023 02 25.72197 15 22 09.44 -01 13 34.8 17.9 GXED077Q62
CK23A030 2C2023 02 25.72892 15 22 09.36 -01 13 33.6 18.2 GXED077Q62
CK23A030 NC2023 02 25.73292 15 22 09.33 -01 13 32.9 17.9 GVED077Q62
CK23A030 NC2023 02 25.73894 15 22 09.27 -01 13 32.0 17.9 GVED077Q62
CK23A030 sC2023 02 25.75172515 22 09.143-01 13 30.33 18.0 GVED077Q62
CK23A030 sC2023 02 25.75351915 22 09.122-01 13 29.79 18.0 GVED077Q62
CK23A030 NC2023 02 25.75366 15 22 09.13 -01 13 29.8 18.1 GVED077Q62
CK23A030 sC2023 02 25.75528915 22 09.111-01 13 29.57 18.2 GVED077Q62
CK23A030 KC2023 02 25.76245 15 22 09.06 -01 13 29.6 18.2 VVED077P87
CK23A030 KC2023 02 25.77749 15 22 08.94 -01 13 27.5 VED077P87
CK23A030 KC2023 02 25.79248 15 22 08.77 -01 13 24.7 VED077P87
CK23A030 KC2023 02 26.04748115 22 06.449-01 12 47.34 18.2 GVED077J95
CK23A030 KC2023 02 26.05454815 22 06.382-01 12 46.08 18.1 GVED077J95
CK23A030 KC2023 02 26.06020815 22 06.33 -01 12 44.7 17.9 GVED077587
CK23A030 KC2023 02 26.06218115 22 06.324-01 12 45.11 18.0 GVED077J95
CK23A030 KC2023 02 26.06370415 22 06.29 -01 12 44.2 17.6 GVED077587
CK23A030 KC2023 02 26.06545 15 22 06.31 -01 12 45.0 VED077204
CK23A030 KC2023 02 26.06719915 22 06.23 -01 12 44.0 17.7 GVED077587
CK23A030 KC2023 02 26.07164415 22 06.233-01 12 43.49 18.1 GVED077J95
CK23A030 KC2023 02 26.11762 15 22 05.80 -01 12 36.7 18.2 GVED077204
CK23A030 KC2023 02 26.13313 15 22 05.63 -01 12 34.5 18.1 GVED077G06
CK23A030 KC2023 02 26.14390 15 22 05.52 -01 12 32.7 18.1 GVED077G06
CK23A030 KC2023 02 26.14744 15 22 05.52 -01 12 32.1 VED077204
CK23A030 KC2023 02 26.15467 15 22 05.40 -01 12 30.8 18.2 GVED077G06
CK23A030 KC2023 02 26.16544 15 22 05.32 -01 12 29.5 18.3 GVED077G06
CK23A030 %C2023 02 26.38477 15 22 03.257-01 11 54.85 17.7 GVED077W88
CK23A030 %C2023 02 26.39266 15 22 03.180-01 11 53.63 18.2 GVED077W88
CK23A030 KC2023 02 26.47436115 22 02.42 -01 11 42.6 17.9 GXED077858
CK23A030 KC2023 02 26.48128415 22 02.35 -01 11 41.5 18.2 GXED077858
CK23A030 KC2023 02 26.48801415 22 02.29 -01 11 40.5 18.3 GXED077858
CK23A030 KC2023 02 26.70138 15 22 00.333-01 11 09.02 16.7 VqED077Q21
CK23A030 KC2023 02 26.74156 15 21 59.874-01 11 02.78 17.4 VqED077Q21
CK23A030 KC2023 02 26.75207 15 21 59.820-01 10 59.15 15.8 VqED077Q21
CK23A030 C2023 02 26.93851 15 21 57.93 -01 10 32.0 18.0 GUED077N88
CK23A030 C2023 02 26.94212 15 21 57.89 -01 10 31.7 18.0 GUED077N88
CK23A030 C2023 02 26.94574 15 21 57.86 -01 10 30.8 17.9 GUED077N88
CK23A030 C2023 02 26.94936 15 21 57.81 -01 10 30.3 17.9 GUED077N88
CK23A030 C2023 02 26.95299 15 21 57.78 -01 10 29.7 18.0 GUED077N88
CK23A030 C2023 02 26.95662 15 21 57.75 -01 10 29.3 18.0 GUED077N88
CK23A030 :C2023 02 27.15653 15 21 55.84 -01 09 58.5 17.7 VqED077950
CK23A030 :C2023 02 27.17586 15 21 55.64 -01 09 55.6 17.6 VqED077950
CK23A030 C2023 02 27.25851 15 21 54.75 -01 09 42.9 18.1 GVED077Z21
CK23A030 C2023 02 27.26563 15 21 54.68 -01 09 41.7 18.1 GVED077Z21
CK23A030 KC2023 02 27.31125215 21 54.26 -01 09 34.9 18.2 GXED077W62
CK23A030 KC2023 02 27.32815815 21 54.10 -01 09 32.2 18.1 GXED077W62
CK23A030 3C2023 02 27.34104 15 21 53.945-01 09 28.94 18.0 GVED077W88
CK23A030 KC2023 02 27.34435115 21 53.93 -01 09 29.8 17.9 GXED077W62
CK23A030 C2023 02 27.35214015 21 53.851-01 09 26.86 18.14cVED077W68
CK23A030 C2023 02 27.35484415 21 53.803-01 09 26.78 18.11cVED077W68
CK23A030 3C2023 02 27.36877 15 21 53.662-01 09 24.66 17.8 GVED077W88
CK23A030 C2023 02 27.37483215 21 53.602-01 09 23.40 18.23cVED077W68
CK23A030 C2023 02 27.39033715 21 53.453-01 09 21.17 18.37cVED077W68
CK23A030 KC2023 02 27.40035 15 21 53.38 -01 09 21.1 18.0 GVED077V21
CK23A030 KC2023 02 27.42926 15 21 53.06 -01 09 16.7 18.0 GVED077V21
CK23A030 KC2023 02 27.45794 15 21 52.78 -01 09 12.2 18.0 GVED077V21
CK23A030 KC2023 02 27.48681 15 21 52.46 -01 09 08.0 18.0 GVED077V21
CK23A030 KC2023 02 27.72384 15 21 50.040-01 08 31.13 17.8 VqED077Q21
CK23A030 KC2023 02 27.74485 15 21 49.822-01 08 27.74 18.2 VqED077Q21
CK23A030 C2023 02 27.74546 15 21 49.85 -01 08 28.0 mED077349
CK23A030 KC2023 02 27.74935 15 21 49.80 -01 08 27.3 18.0 RqED077Q11
CK23A030 KC2023 02 27.75376315 21 49.76 -01 08 26.5 18.3 GVED077900
CK23A030 KC2023 02 27.76077315 21 49.68 -01 08 25.2 18.1 GVED077900
CK23A030 KC2023 02 27.76120 15 21 49.67 -01 08 25.5 qED077Q11
CK23A030 KC2023 02 27.76778315 21 49.60 -01 08 24.4 18.3 GVED077900
CK23A030 C2023 02 27.77096 15 21 49.58 -01 08 24.2 18.0 VmED077349
CK23A030 KC2023 02 27.77302 15 21 49.55 -01 08 23.6 qED077Q11
CK23A030 C2023 02 27.83057 15 21 48.97 -01 08 14.9 18.0 GUED077N88
CK23A030 C2023 02 27.84510 15 21 48.82 -01 08 12.8 18.0 GUED077N88
CK23A030 C2023 02 27.85237 15 21 48.74 -01 08 11.5 18.0 GUED077N88
CK23A030 C2023 02 27.86330 15 21 48.62 -01 08 09.7 18.0 GUED077N88
CK23A030 C2023 02 27.86693 15 21 48.58 -01 08 09.1 17.9 GUED077N88
CK23A030 C2023 02 27.88145 15 21 48.43 -01 08 07.0 18.0 GUED077N88
CK23A030 C2023 02 27.88508 15 21 48.40 -01 08 06.4 17.9 GUED077N88
CK23A030 C2023 02 27.89234 15 21 48.34 -01 08 05.1 17.9 GUED077N88
CK23A030 C2023 02 27.90686 15 21 48.16 -01 08 03.3 17.9 GUED077N88
CK23A030 C2023 02 27.91050 15 21 48.11 -01 08 02.6 17.9 GUED077N88
CK23A030 C2023 02 27.92139 15 21 47.99 -01 08 00.8 17.9 GUED077N88
CK23A030 C2023 02 27.92501 15 21 47.97 -01 08 00.5 17.9 GUED077N88
CK23A030 C2023 02 27.93226 15 21 47.87 -01 07 59.1 18.0 GUED077N88
CK23A030 KC2023 02 28.12813 15 21 45.814-01 07 28.63 18.0 GXED077K87
CK23A030 KC2023 02 28.13911 15 21 45.706-01 07 26.72 17.9 GXED077K87
CK23A030 C2023 02 28.13911 15 21 45.74 -01 07 26.5 18.2 GVED077Z21
CK23A030 C2023 02 28.14622 15 21 45.67 -01 07 25.6 18.0 GVED077Z21
CK23A030 KC2023 02 28.14936 15 21 45.578-01 07 25.18 17.9 GXED077K87
CK23A030 KC2023 02 28.15399315 21 45.590-01 07 23.57 17.9 GXED077Y00
CK23A030 KC2023 02 28.16693515 21 45.458-01 07 21.24 18.2 GXED077Y00
CK23A030 KC2023 02 28.17900915 21 45.252-01 07 20.16 18.7 rZED077M09
CK23A030 KC2023 02 28.17968215 21 45.328-01 07 19.19 18.3 GXED077Y00
CK23A030 KC2023 02 28.19832315 21 45.061-01 07 17.54 18.1 rZED077M09
CK23A030 KC2023 02 28.21588015 21 44.922-01 07 15.41 17.5 rZED077M09
Observer details:
204 Schiaparelli Observatory. Observer A. Aletti. 0.36-m f/7.5 reflector +
CCD.
247 Roving Observer. Observers F. D. Romanov, K. Yoshimoto. 0.50-m f/6.8
reflector + CCD, 0.51-m f/6.8 Corrected Dall-Kirkham Astrograph + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
587 Sormano. Observers E. Colzani, E. Sottocorno, E. Valli, G. Zucchi.
Measurer P. Sicoli. 0.5-m f/6.8 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.16-m f/7
Refractor + CCD, 0.51-m f/8.1 Schmidt-Cassegrain + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-mf/7.0 reflector + CCD.
950 La Palma. Observer M. Masek. 0.25-m f/6.8 reflector + CCD.
D29 Purple Mountain Observatory, XuYi Station. Observers H. B. Zhao, B. Li,
G. Zhaori, R. Q. Hong, L. F. Hu. Measurers H. B. Zhao, B. Li, H. Lu, G.
Zhaori, Z. J. Xu. 1.04-m f/1.8 Schmidt + CCD.
G06 Dordrecht, Sterrenburg. Observer G. van Buitenen. 0.20-m f/8 Ritchey-
Chretien + f/5.4 focal reducer + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I41 Palomar Mountain--ZTF. Observers G. Helou, T. A. Prince, K.
Venkataramani, Q.-Z. Ye, Z. T. F. Collaboration. Measurer Q.-Z. Ye.
1.2-m f/2.4 Schmidt + ZTF Camera.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.30-m f/6.8
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K87 Dettelbach Vineyard Observatory. Observer B. Haeusler. 0.30-m f/8.0
0.30-m Schmidt-Cassegrain + CCD + CCD.
M09 Observatory Gromme - Oudsbergen. Observer P.-J. Dekelver. 0.30-m f/4.0
Newtonian reflector + CCD.
M22 ATLAS South Africa, Sutherland. Observers L. Denneau, R. Siverd, J.
Tonry, H. Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A.
Lawrence, J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector +
CCD.
M28 Lesedi Telescope-SAAO Observatory, Sutherland. Observers N. Erasmus, S.
Potter, C. van Gend, S. Chandra. Measurer N. Erasmus. 1.0-m f/8
Reflector + CCD.
N88 Xingming Observatory #3, Nanshan. Observers H.-J. Tan, X. Gao. Measurer
H.-J. Tan. 0.5-m f/4 reflector + CCD.
P87 Hirao Observatory, Yamaguchi. Observer K. Yoshimoto. 0.20-m f/8 Ritchey-
Chretien + CCD + f/5.4 focal Reducer.
Q11 Shinshiro. Observer T. Ikemura. Measurer H. Sato. 0.38-m f/4.2
reflector + CCD.
Q21 Southern Utsunomiya. Observer H. Nohara. 0.4-m f/3.8 Astrograph + CCD.
Q59 Siding Spring-LCO Clamshell #2. Observer A. Hale. 0.4-m f/10 Schmidt-
Cassegrain + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers H. Sato, F. D. Romanov,
M. Urbanik, G. van Buitenen, R. Fidrich. Measurers H. Sato, F. D.
Romanov, M. Urbanik, G. van Buitenen, D. Rankin, R. Fidrich. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer, 0.30-m f/9 reflector + CCD,
Planewave 20 (0.51m) CDK + CCD, 0.43-m f/6.8 0.43-m F6.8 Reflector + CCD
+ CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
V21 Cewanee Observatory at DSNM. Observer D. T. Durig. 0.40 m f/8 Ritchey-
Chretien + 4656x3520 CCD.
W57 ESA TBT La Silla Observatory. Observers L. Conversi, F. Ocana, M.
Micheli, R. Kresken. Measurers F. Ocana, M. Micheli. 0.56-m f/2.52
astrograph prime-focus corrector + 4K CCD.
W62 Comet Hunter Observatory2, New Ringgold. Observer J. Maikner. 0.30-m
f/3.8 Riccardi-Honders + CCD.
W68 ATLAS Chile, Rio Hurtado. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
W88 Slooh.com Chile Observatory, La Dehesa. Observers N. Paul, B.
Lutkenhoner. 0.43-m f/6.8 Corrected Dall-Kirkham + CCD.
W89 Cerro Tololo-LCO Aqawan A #1. Observer A. Hale. 0.4-m f/10 Schmidt-
Cassegrain + CCD.
Y00 SONEAR Observatory, Oliveira. Observer C. Jacques. 0.45-m f/2.9
reflector + CCD.
Z21 Tenerife-LCO Aqawan A #1. Observer A. Hale. 0.4-m f/10 Schmidt-
Cassegrain + CCD.
Orbital elements:
C/2023 A3 (Tsuchinshan-ATLAS)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 2024 Sept. 28.55963 TT Rudenko
q 0.3904059 (2000.0) P Q
z +0.0006401 Peri. 308.59081 +0.36275685 +0.90020587
+/-0.0030246 Node 21.58224 +0.91805884 -0.30086181
e 0.9997501 Incl. 139.08539 -0.15992321 +0.31481988
From 155 observations 2022 Dec. 22-2023 Feb. 28, mean residual 0".3.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 01 29 15 22 35.9 -02 04 57 7.6331 7.5265 80.1 7.4 18.2
...
2023 02 13 15 23 15.0 -01 41 42 7.2509 7.3966 94.6 7.6 18.0
...
2023 02 21 15 22 45.1 -01 24 53 7.0479 7.3268 102.6 7.6 17.9
...
2023 02 27 15 21 57.3 -01 10 22 6.8982 7.2743 108.6 7.4 17.8
2023 02 28 15 21 47.2 -01 07 48 6.8735 7.2656 109.6 7.4 17.8
2023 03 01 15 21 36.4 -01 05 11 6.8490 7.2568 110.6 7.3 17.8
...
2023 03 07 15 20 18.2 -00 48 43 6.7043 7.2041 116.6 7.1 17.7
...
2023 03 15 15 17 57.6 -00 24 45 6.5195 7.1335 124.8 6.6 17.6
...
2023 03 30 15 11 41.8 +00 24 42 6.2067 7.0002 139.9 5.3 17.4
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-D77
Read MPEC 2023-D76
Read MPEC 2023-E01
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)