[Iaude] MPEC T05: COMET C/2023 S2 (ATLAS)
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Oct 2 15:56:43 EDT 2023
M.P.E.C. 2023-T05 Issued 2023 October 2, 19:54 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2023 S2 (ATLAS)
L. Denneau reports the discovery of a comet in survey images taken on
Sep. 28 UT by ATLAS Chile (W68), noting a diffuse 8".5 coma. Additional reports
of cometary features are as follows:
OC Date Reporter Coma Tail PA Exposures
Q62 2023-09-29 K. Yoshimoto 45" 30" 105 10x60s
595 2023-09-29 E. Pettarin 10" 29" 50-125 75x20s
L06 2023-09-29 P. Sicoli 12" 335
M49 2023-09-29 D. Husar 26"
X07 2023-09-29 H. Sato 40" 24x10s
X07 2023-09-30 A. Mattiazzo 70"
I47 2023-09-30 M. Masek 36" 47x60s
Q56 2023-09-30 E. Guido 80" 20x60s
C40 2023-09-30 A. Ivanov 120"
M14 2023-09-30 M. Auteri 15" 112x15s
M49 2023-09-30 D. Husar 35"
204 2023-09-30 A. Aletti 20" 15" 115
L81 2023-09-30 N. Paul 32" 24" 105 8x50s
X06 2023-10-01 D. Husar 14" 20" 90 30x60s
Q38 2023-10-01 M. Mattiazzo 120"
X07 2023-10-01 T. Prystavski 150" 6x60s
215 2023-10-01 W. Hasubick 47" 20x20s
G18 2023-10-01 A. Valvasori 37" 80x30s
903 2023-10-02 M. Yoshimi 45"
L81 2023-10-02 R. Ligustri 40"
Observations:
CK23S020* C2023 09 28.98636115 54 22.831-05 53 57.37 15.15oVET005W68
CK23S020 C2023 09 28.98953215 54 23.532-05 53 57.98 15.10oVET005W68
CK23S020 C2023 09 28.99819215 54 25.483-05 53 58.06 15.24oVET005W68
CK23S020 C2023 09 29.00969315 54 28.061-05 53 57.73 15.47oVET005W68
CK23S020 KC2023 09 29.14481 15 54 58.562-05 54 06.30 15.7 GVET005U52
CK23S020 KC2023 09 29.15025 15 54 59.873-05 54 07.67 15.7 GVET005U52
CK23S020 KC2023 09 29.15697 15 55 01.361-05 54 07.27 15.5 GVET005U52
CK23S020 aC2023 09 29.39356 15 55 54.98 -05 54 01.6 14.2 TVET005Q62
CK23S020 aC2023 09 29.39713 15 55 55.76 -05 54 01.8 VET005Q62
CK23S020 aC2023 09 29.40157 15 55 56.79 -05 54 01.7 VET005Q62
CK23S020 KC2023 09 29.41094615 55 58.92 -05 54 08.6 17.2 GVET005900
CK23S020 KC2023 09 29.41462315 55 59.72 -05 54 08.8 17.5 GVET005900
CK23S020 KC2023 09 29.41842415 56 00.61 -05 54 09.3 16.9 GVET005900
CK23S020 KC2023 09 29.42210615 56 01.41 -05 54 09.1 17.2 GVET005900
CK23S020 KC2023 09 29.42590715 56 02.28 -05 54 09.4 17.2 GVET005900
CK23S020 KC2023 09 29.42958415 56 03.13 -05 54 09.1 16.1 GVET005900
CK23S020 KC2023 09 29.74445415 57 14.87 -05 54 12.4 15.4 GVET005595
CK23S020 KC2023 09 29.75194515 57 16.52 -05 54 12.5 15.6 GVET005595
CK23S020 KC2023 09 29.75438415 57 17.14 -05 54 11.9 16.4 GVET005L06
CK23S020 0B2023 09 29.75551315 57 17.227-05 54 05.79 16.8 VZET005M49
CK23S020 KC2023 09 29.75604515 57 17.49 -05 54 12.5 15.8 GVET005L06
CK23S020 KC2023 09 29.75886015 57 18.15 -05 54 12.5 15.4 GVET005595
CK23S020 KC2023 09 29.76065515 57 18.57 -05 54 12.7 16.2 GVET005L06
CK23S020 0B2023 09 29.76262215 57 18.857-05 54 05.86 16.7 VZET005M49
CK23S020 KC2023 09 29.76265015 57 18.95 -05 54 12.7 16.9 GVET005587
CK23S020 KC2023 09 29.76634315 57 19.81 -05 54 12.5 VET005587
CK23S020 KC2023 09 29.76966415 57 20.54 -05 54 12.3 VET005587
CK23S020 0B2023 09 29.76972715 57 20.466-05 54 05.60 16.7 VZET005M49
CK23S020 7C2023 09 29.79232015 57 25.724-05 54 12.13 16.3 GVET005Z84
CK23S020 7C2023 09 29.79273215 57 25.815-05 54 12.10 16.3 GVET005Z84
CK23S020 7C2023 09 29.79676715 57 26.732-05 54 12.14 16.3 GVET005Z84
CK23S020 KB2023 09 29.80806 15 57 29.294-05 54 12.49 16.4 VZET005J57
CK23S020 KB2023 09 29.81529 15 57 30.948-05 54 11.84 16.4 VZET005J57
CK23S020 KB2023 09 29.82188 15 57 32.390-05 54 12.53 16.5 VZET005J57
CK23S020 8C2023 09 29.99010 15 58 10.89 -05 54 07.0 15.9 GVET005X07
CK23S020 8C2023 09 29.99400 15 58 11.66 -05 54 05.7 16.3 GVET005X07
CK23S020 8C2023 09 29.99691 15 58 12.36 -05 54 06.4 15.5 GVET005X07
CK23S020 0C2023 09 29.99770 15 58 12.53 -05 54 06.2 VET005X07
CK23S020 8C2023 09 29.99980 15 58 13.18 -05 54 06.3 15.7 GVET005X07
CK23S020 0C2023 09 30.00017 15 58 13.11 -05 54 06.1 VET005X07
CK23S020 0C2023 09 30.00262 15 58 13.65 -05 54 06.1 13.8 GVET005X07
CK23S020 KC2023 09 30.01248 15 58 15.93 -05 54 05.8 15.1 VqET005I47
CK23S020 KC2023 09 30.02573 15 58 18.98 -05 54 05.7 15.0 VqET005I47
CK23S020 KC2023 09 30.03857 15 58 21.89 -05 54 06.1 15.0 VqET005I47
CK23S020 C2023 09 30.37864 15 59 39.72 -05 54 07.8 15.9 GVET005Q58
CK23S020 C2023 09 30.38150 15 59 40.46 -05 54 07.7 16.1 GVET005Q58
CK23S020 KB2023 09 30.38640 15 59 41.57 -05 54 06.9 15.9 GVET005Q56
CK23S020 KB2023 09 30.39313 15 59 43.11 -05 54 07.6 16.4 GVET005Q56
CK23S020 KB2023 09 30.39816 15 59 44.27 -05 54 08.3 16.4 GVET005Q56
CK23S020 1C2023 09 30.67782 16 00 48.52 -05 54 16.9 16.3 GVET005C40
CK23S020 1C2023 09 30.68336 16 00 49.85 -05 54 16.9 16.1 GVET005C40
CK23S020 1C2023 09 30.68890 16 00 51.23 -05 54 15.1 16.3 GVET005C40
CK23S020 1C2023 09 30.70793 16 00 55.52 -05 54 18.8 16.3 GVET005C40
CK23S020 1C2023 09 30.71345 16 00 56.70 -05 54 13.7 16.4 GVET005C40
CK23S020 1C2023 09 30.71899 16 00 57.99 -05 54 14.7 16.3 GVET005C40
CK23S020 0B2023 09 30.74584 16 01 04.21 -05 54 09.4 15.6 VZET005M49
CK23S020 KB2023 09 30.75042 16 01 05.450-05 54 17.46 15.9 GXET005K74
CK23S020 KC2023 09 30.75052416 01 05.41 -05 54 17.1 16.5 GVET005G17
CK23S020 KB2023 09 30.75689 16 01 06.941-05 54 17.24 15.5 GXET005K74
CK23S020 0B2023 09 30.75721 16 01 06.80 -05 54 10.0 15.5 VZET005M49
CK23S020 7C2023 09 30.75792 16 01 06.972-05 54 09.40 16.4 GVET005L81
CK23S020 KC2023 09 30.75985716 01 07.52 -05 54 17.0 16.4 GVET005G17
CK23S020 7C2023 09 30.76141 16 01 07.778-05 54 09.32 16.4 GVET005L81
CK23S020 KC2023 09 30.76192516 01 07.96 -05 54 16.4 16.3 GVET005587
CK23S020 KC2023 09 30.76519916 01 08.72 -05 54 16.9 16.4 GVET005587
CK23S020 KB2023 09 30.76536 16 01 08.830-05 54 16.67 16.2 GXET005K74
CK23S020 KC2023 09 30.76617 16 01 09.01 -05 54 17.5 16.7 GXET005K83
CK23S020 KC2023 09 30.76845 16 01 09.51 -05 54 15.7 17.3 RqET005204
CK23S020 0B2023 09 30.76917 16 01 09.55 -05 54 09.7 15.5 VZET005M49
CK23S020 KC2023 09 30.76950216 01 09.78 -05 54 15.9 16.0 GVET005587
CK23S020 KC2023 09 30.77136 16 01 10.14 -05 54 16.1 16.6 GVET005M14
CK23S020 KC2023 09 30.77209 16 01 10.36 -05 54 16.9 16.8 GXET005K83
CK23S020 KB2023 09 30.77364216 01 10.704-05 54 17.36 17.0 GXET005B72
CK23S020 KB2023 09 30.77642816 01 11.333-05 54 17.20 16.3 GXET005B72
CK23S020 KC2023 09 30.77887 16 01 11.87 -05 54 16.7 qET005204
CK23S020 KC2023 09 30.78926 16 01 14.36 -05 54 13.6 16.8 GVET005M14
CK23S020 KC2023 09 30.79769 16 01 16.28 -05 54 16.4 16.2 RqET005C10
CK23S020 KC2023 09 30.80204 16 01 17.21 -05 54 16.3 16.0 RqET005C10
CK23S020 KC2023 09 30.80632 16 01 18.20 -05 54 16.8 16.3 RqET005C10
CK23S020 C2023 09 30.98438 16 01 59.21 -05 54 08.3 16.5 GVET005W79
CK23S020 C2023 09 30.98587 16 01 59.57 -05 54 08.1 16.7 GVET005W79
CK23S020 C2023 09 30.98737 16 01 59.98 -05 54 08.7 16.6 GVET005W79
CK23S020 KC2023 10 01.00171 16 02 03.23 -05 54 08.7 16.4 VZET005X06
CK23S020 3B2023 10 01.00424 16 02 03.88 -05 54 08.8 12.7 TVET005X07
CK23S020 KC2023 10 01.00499 16 02 04.03 -05 54 08.0 15.2 VqET005I47
CK23S020 3B2023 10 01.00624 16 02 04.36 -05 54 08.4 VET005X07
CK23S020 5C2023 10 01.00899 16 02 04.903-05 54 09.00 16.9 GVET005W88
CK23S020 3B2023 10 01.00914 16 02 05.03 -05 54 08.6 VET005X07
CK23S020 KC2023 10 01.01067 16 02 05.28 -05 54 08.4 16.6 VZET005X06
CK23S020 5C2023 10 01.01226 16 02 05.695-05 54 08.35 16.9 GVET005W88
CK23S020 KC2023 10 01.01327 16 02 05.99 -05 54 07.5 15.2 VqET005I47
CK23S020 5C2023 10 01.01919 16 02 07.265-05 54 07.96 16.9 GVET005W88
CK23S020 KC2023 10 01.01966 16 02 07.36 -05 54 08.5 16.7 VZET005X06
CK23S020 KC2023 10 01.02156 16 02 07.83 -05 54 07.5 15.3 VqET005I47
CK23S020 KC2023 10 01.32972 16 03 19.21 -05 54 06.5 16.9 RqET005E94
CK23S020 KC2023 10 01.34268 16 03 22.20 -05 54 06.1 16.8 RqET005E94
CK23S020 KC2023 10 01.35535 16 03 25.13 -05 54 05.7 16.9 RqET005E94
CK23S020 KC2023 10 01.36808 16 03 28.10 -05 54 05.3 16.9 RqET005E94
CK23S020 C2023 10 01.40359 16 03 36.43 -05 54 08.3 16.1 VqET005Q38
CK23S020 C2023 10 01.40624 16 03 37.07 -05 54 07.3 15.9 VqET005Q38
CK23S020 C2023 10 01.40846 16 03 37.46 -05 54 06.6 15.6 VqET005Q38
CK23S020 C2023 10 01.41066 16 03 37.94 -05 54 07.3 13.0 VqET005Q38
CK23S020 KB2023 10 01.67862 16 04 40.30 -05 54 12.2 15.8 GVET005M44
CK23S020 KB2023 10 01.68236 16 04 41.09 -05 54 12.5 15.8 GVET005M44
CK23S020 KB2023 10 01.68647 16 04 42.12 -05 54 13.4 16.0 GVET005M44
CK23S020 0B2023 10 01.74512 16 04 55.77 -05 54 07.3 15.5 VZET005M49
CK23S020 KC2023 10 01.74785216 04 56.49 -05 54 14.5 16.9 GVET005G17
CK23S020 KC2023 10 01.74941 16 04 56.78 -05 54 14.5 15.3 GVET005G18
CK23S020 KC2023 10 01.74960116 04 56.95 -05 54 13.8 17.3 RqET005215
CK23S020 KC2023 10 01.75086 16 04 57.22 -05 54 14.0 15.3 GXET005L63
CK23S020 KC2023 10 01.75089316 04 57.26 -05 54 14.0 17.2 RqET005215
CK23S020 KC2023 10 01.75218516 04 57.56 -05 54 14.6 17.1 RqET005215
CK23S020 KC2023 10 01.75426 16 04 58.061-05 54 14.58 15.8 GXET005K74
CK23S020 0B2023 10 01.75472 16 04 58.00 -05 54 07.4 15.4 VZET005M49
CK23S020 KC2023 10 01.75496 16 04 58.24 -05 54 14.0 15.2 GXET005L63
CK23S020 KC2023 10 01.75503216 04 58.16 -05 54 14.5 16.6 GVET005G17
CK23S020 KC2023 10 01.75722 16 04 58.721-05 54 14.62 15.8 GXET005K74
CK23S020 KC2023 10 01.75762616 04 58.78 -05 54 14.5 17.0 RqET005215
CK23S020 KC2023 10 01.75767 16 04 58.70 -05 54 15.7 16.1 GVET005104
CK23S020 KC2023 10 01.75864 16 04 59.08 -05 54 13.9 15.5 GXET005L63
CK23S020 KC2023 10 01.75891816 04 59.08 -05 54 14.5 17.0 RqET005215
CK23S020 KC2023 10 01.76021116 04 59.45 -05 54 14.2 17.2 RqET005215
CK23S020 KC2023 10 01.76038 16 04 59.484-05 54 14.65 15.7 GXET005K74
CK23S020 KC2023 10 01.76069316 04 59.53 -05 54 14.1 15.8 GXET005595
CK23S020 KC2023 10 01.76221216 04 59.82 -05 54 14.2 16.7 GVET005G17
CK23S020 KC2023 10 01.76333 16 05 00.156-05 54 13.86 15.6 GXET005K74
CK23S020 0B2023 10 01.76396 16 05 00.14 -05 54 07.4 15.4 VZET005M49
CK23S020 KC2023 10 01.76484 16 05 00.46 -05 54 14.3 16.1 GVET005104
CK23S020 KC2023 10 01.76586 16 05 00.763-05 54 14.94 15.6 GXET005K74
CK23S020 KC2023 10 01.76630 16 05 00.74 -05 54 14.7 15.5 GVET005G18
CK23S020 KC2023 10 01.76876116 05 01.40 -05 54 14.2 15.8 GXET005595
CK23S020 KC2023 10 01.76933 16 05 01.48 -05 54 14.2 16.3 GVET005M14
CK23S020 KC2023 10 01.77044 16 05 01.77 -05 54 14.1 16.9 GVET005C23
CK23S020 KC2023 10 01.77344 16 05 02.55 -05 54 14.9 16.6 GVET005C23
CK23S020 KC2023 10 01.77666 16 05 03.17 -05 54 14.1 16.5 RqET005L27
CK23S020 KC2023 10 01.77682716 05 03.24 -05 54 14.2 15.8 GXET005595
CK23S020 KC2023 10 01.77756 16 05 03.55 -05 54 16.0 16.2 GVET005C23
CK23S020 KB2023 10 01.77990 16 05 03.93 -05 54 13.7 15.3 VZET005C95
CK23S020 KB2023 10 01.78056 16 05 04.11 -05 54 14.0 15.5 VZET005C95
CK23S020 KC2023 10 01.78168 16 05 04.40 -05 54 15.1 17.0 GVET005C23
CK23S020 KC2023 10 01.78419 16 05 04.91 -05 54 14.0 16.5 RqET005L27
CK23S020 KB2023 10 01.78727 16 05 05.65 -05 54 14.1 15.2 VZET005C95
CK23S020 KB2023 10 01.78789 16 05 05.80 -05 54 13.9 15.4 VZET005C95
CK23S020 KC2023 10 01.79089 16 05 06.45 -05 54 14.1 16.6 GVET005M14
CK23S020 KC2023 10 01.79172 16 05 06.68 -05 54 13.9 16.2 RqET005L27
CK23S020 KB2023 10 01.79523 16 05 07.51 -05 54 14.0 15.6 VZET005C95
CK23S020 (C2023 10 01.83038 16 05 15.68 -05 54 13.0 16.2 GVET005G40
CK23S020 (C2023 10 01.83333 16 05 16.39 -05 54 12.6 16.1 GVET005G40
CK23S020 KC2023 10 02.41593 16 07 32.68 -05 54 09.3 14.2 TqET005Q23
CK23S020 KC2023 10 02.42095 16 07 33.87 -05 54 09.1 qET005Q23
CK23S020 KC2023 10 02.42597 16 07 35.02 -05 54 08.8 qET005Q23
CK23S020 KC2023 10 02.42757616 07 35.37 -05 54 08.1 17.5 GVET005900
CK23S020 KC2023 10 02.43002 16 07 36.02 -05 54 08.9 qET005903
CK23S020 KC2023 10 02.43370816 07 36.83 -05 54 09.5 17.2 GVET005900
CK23S020 KC2023 10 02.43837 16 07 37.97 -05 54 08.9 qET005903
CK23S020 C2023 10 02.43843 16 07 38.19 -05 54 10.8 16.5 RoET005D54
CK23S020 KC2023 10 02.44459 16 07 39.47 -05 54 09.6 14.0 TqET005903
CK23S020 C2023 10 02.45062 16 07 41.00 -05 54 09.7 16.4 RoET005D54
CK23S020 C2023 10 02.46373 16 07 44.06 -05 54 10.5 16.3 RoET005D54
CK23S020 1C2023 10 02.66465 16 08 31.23 -05 54 07.1 15.7 GVET005C40
CK23S020 1C2023 10 02.67308 16 08 33.24 -05 54 07.2 15.8 GVET005C40
CK23S020 1C2023 10 02.68145 16 08 35.28 -05 54 06.8 15.7 GVET005C40
CK23S020 KB2023 10 02.71622 16 08 43.42 -05 54 06.8 16.7 GXET005M45
CK23S020 KB2023 10 02.72335 16 08 45.07 -05 54 07.0 16.5 GXET005M45
CK23S020 KB2023 10 02.73112 16 08 46.89 -05 54 06.6 16.4 GXET005M45
CK23S020 KC2023 10 02.74845316 08 51.029-05 54 06.33 16.4 GVET005K63
CK23S020 KC2023 10 02.75053 16 08 51.54 -05 54 04.5 15.2 VVET005L85
CK23S020 KC2023 10 02.75208816 08 51.820-05 54 06.78 16.5 GVET005K63
CK23S020 KC2023 10 02.75481816 08 52.467-05 54 05.66 16.1 GVET005K63
CK23S020 KC2023 10 02.75872616 08 53.40 -05 54 06.3 16.2 GVET005G17
CK23S020 KC2023 10 02.76300 16 08 54.44 -05 54 06.1 15.2 VVET005L85
CK23S020 KC2023 10 02.76366 16 08 54.61 -05 54 07.2 16.3 GVET005C23
CK23S020 KC2023 10 02.76403416 08 54.65 -05 54 06.4 16.1 GVET005G17
CK23S020 KC2023 10 02.76721 16 08 55.46 -05 54 06.8 16.8 GVET005C23
CK23S020 KC2023 10 02.76827 16 08 55.61 -05 54 05.6 15.9 VqET005A77
CK23S020 KC2023 10 02.76956416 08 55.95 -05 54 05.9 16.4 GVET005G17
CK23S020 KC2023 10 02.77021 16 08 56.16 -05 54 06.1 16.2 GVET005C23
CK23S020 KC2023 10 02.77320 16 08 56.85 -05 54 06.7 16.6 GVET005C23
CK23S020 KC2023 10 02.77546 16 08 57.33 -05 54 05.4 15.7 VqET005A77
CK23S020 KC2023 10 02.77620 16 08 57.48 -05 54 06.4 16.5 GVET005C23
CK23S020 KC2023 10 02.77919 16 08 58.25 -05 54 06.7 15.4 GVET005C23
CK23S020 KC2023 10 02.78225 16 08 58.94 -05 54 06.0 15.7 VqET005A77
CK23S020 KC2023 10 02.78256 16 08 59.11 -05 54 07.8 16.6 GVET005C23
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurer P.
Bacci. 0.60-m f/4.0 reflector + CCD.
204 Schiaparelli Observatory. Observers A. Aletti. Measurers A. Aletti, F.
Bellini. 0.36-m f/7.5 reflector + CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
587 Sormano. Observers A. Fumagalli, A. Testa, E. Colzani. Measurers A.
Testa, P. Sicoli. 0.5-m f/6.8 reflector + CCD.
595 Farra d'Isonzo. Observers E. Pettarin, G. Panterotto. Measurer E.
Pettarin. 0.61-m f/4.5 reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
903 Fukuchiyama and Kannabe. Observer M. Yoshimi. 0.25-m f/6.3 Schmidt-
Cassegrain + CCD.
A77 Observatoire Chante-Perdrix, Dauban. Observer F. Kugel. 0.40-m f/2.8
reflector + CCD.
B72 Soerth. Observer B. Koch. 0.36-m f/7.6 reflector + CMO.
C10 Maisoncelles. Observer J.-F. Soulier. 0.30-m f/3.8 Newtonian reflector +
CCD.
C23 Olmen. Observer A. Diepvens. Refractor + CCD.
C40 Kuban State University Astrophysical Observatory. Observers A. Ivanov, A.
Barcov, V. Ivanov, V. Lysenko, N. Yakovenko, N. Ivanova, N. Gorbunov, G.
Kurbatov, P. Shchukin, V. Roshchupko. Measurer A. Ivanov. 0.51-m f/8
reflector + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observers D. Husar, K. Meo.
Measurer D. Husar. 0.20-m f/10 reflector + CMO, 0.30-m f/5.8 reflector +
CMO.
D54 MASTER-II Observatory, Blagoveshchensk. Observers Y. Kechin, V. Lipunov,
E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, A. Kuznetsov, D.
Zimnukhov, O. Gress, A. Tlatov, V. Senik, D. Dormidontov, A. Parkhomenko.
Measurer Y. Kechin. 0.4-m f/2.5 reflector + CCD.
E94 Possum Observatory, Gisborne. Observer J. Drummond. 0.41-m f/4.5
Newtonian + CCD.
G17 BAS Observatory, Scandicci. Observer L. Grazzini. 0.20-m f/10 Schmidt-
Cassegrain + CCD + f/6.3 focal reducer.
G18 ALMO Observatory, Padulle. Observers A. Valvasori, E. Guido. Measurer A.
Valvasori. 0.30-m f/4 reflector + CCD.
G40 Slooh.com Canary Islands Observatory. Observer K. Dankov. 0.5-m f/6.8
Corrected Dall-Kirkham + CCD.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.3-m f/6.8
reflector + CCD.
J57 Centro Astronomico Alto Turia, Valencia. Observer A. Fornas. Measurers
A. Fornas, G. Fornas, E. Arce, V. Mas. 0.43-m f/6.8 Reflector 0.4m + CMO.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.41-m
f/3.75 0.41m f/3.2 Newton + CCD.
K74 Muensterschwarzach Observatory, Schwarzach. Observer C. Gerhard. 0.18-m
f/6.0 refractor + CMO, 0.18-m f/6.0 refractor + CCD.
K83 Beppe Forti Astronomical Observatory, Montelupo. Observers M. Tombelli,
A. Mazzanti, G. Interrante. Measurers M. Tombelli, F. Bernardi. 0.40-m
f/8 Ritchey-Chretien + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36m Schmidt Cassegrain + CCD.
L27 29PREMOTE Observatory, Dauban. Observer J.-F. Soulier. 0.25-m f/3.5
Newtonian reflector + CCD.
L63 HOB Observatory, Capraia Fiorentina. Observer M. Iozzi. 0.2m f/6.0
Schmidt-Cassegrain + CCD.
L81 Skygems Namibia Remote Observatory. Observer N. Paul. 0.50-m f/6.8 20
AG Optical iDK + CCD.
L85 BiAnto Observatory, Lauria. Observer M. Feraco. 0.20-m f/5 Newton + CCD.
M14 Schiaparelli Gallarate Station. Observer M. Auteri. 0.20-m f/5 Newtonian
reflector + CCD.
M44 Al-Khatim Observatory, Abu Dhabi. Observer M. Odeh. 0.36-m f/7.7 SC +
CMO.
M45 Starhopper Observatory, Sfantu Gheorghe. Observer F. Ursache. 0.41-m
f/7.5 reflector + CMO.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.5 reflector + CMO.
Q23 Sukagawa. Observer H. Sato. 0.25-m f/4 reflector + CCD.
Q38 Swan Hill. Observer M. Mattiazzo. C11 RASA f/2.2 + Canon 6D.
Q56 Heavens Mirror Observatory, Yass. Observers E. Guido, M. Rocchetto, A.
Valvasori. Measurer E. Guido. 0.10-m f/3.6 refractor + CMO.
Q58 Siding Spring-LCO Clamshell #1. Observer A. Hale. 0.35-m f/3 Cassegrain
+ CCD.
Q62 iTelescope Observatory, Siding Spring. Observer K. Yoshimoto. 0.51-m
f/6.8 reflector + CCD + focal reducer.
U52 Shasta Valley Observatory, Grenada. Observers J. E. Rogers, B. Haeusler.
Measurers J. E. Rogers, D. Parrott. 0.30-m f/5.2 0.30-m Helin Telescope +
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.
W79 Cerro Tololo-LCO Aqawan B #1. Observer A. Hale. 0.4-m f/10 Cassegrain +
CCD.
W88 Slooh.com Chile Observatory, La Dehesa. Observer M. Kumrucu-Lohmiller.
0.43-m f/6.8 Corrected Dall-Kirkham + CCD.
X06 Skygems Chile, Rio Hurtado. Observers D. Husar, L. Demetz. Measurer D.
Husar. 0.40-m f/6.6 reflector + CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado. Observers M. Mattiazzo, H. Sato,
T. Prystavski. T71 500 mm f/2.8 Takahashi Epsilon + CMOS + CCD, 0.51-m
f/6.8 astrograph + CCD, 0.18-m f/2.8 hyperbolic astrograph + CMO.
Z84 Calar Alto-Schmidt. Observers F. Ocana, M. Micheli, R. Kresken, L.
Conversi. Measurers F. Ocana, M. Micheli. 0.8-m f/3 Schmidt + CCD.
Orbital elements:
C/2023 S2 (ATLAS)
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Oct. 15.39406 TT Rudenko
q 1.0669433 (2000.0) P Q
z +0.0079163 Peri. 78.16869 +0.57808377 +0.76993113
+/-0.0235058 Node 230.57636 -0.81574385 +0.55322923
e 0.9915537 Incl. 20.47676 +0.01952217 +0.31803063
>From 183 observations 2023 Sept. 28-Oct. 2, mean residual 0".6.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 09 02 14 27 45.5 -05 31 04 1.4900 1.2803 57.9 41.9 16.9
...
2023 09 17 15 12 17.6 -05 46 40 1.4107 1.1648 54.6 44.7 16.4
...
2023 09 25 15 39 42.8 -05 52 38 1.3639 1.1189 53.8 46.4 16.2
...
2023 10 01 16 02 03.0 -05 54 11 1.3284 1.0932 53.8 47.6 16.0
2023 10 02 16 05 55.4 -05 54 08 1.3226 1.0898 53.8 47.8 16.0
2023 10 03 16 09 50.4 -05 53 59 1.3168 1.0865 53.8 48.1 16.0
...
2023 10 09 16 34 15.5 -05 50 41 1.2832 1.0722 54.3 49.2 15.8
...
2023 10 17 17 09 14.0 -05 38 51 1.2435 1.0673 55.6 50.4 15.8
...
2023 11 01 18 21 21.1 -04 47 26 1.1980 1.1017 59.5 50.9 15.8
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-T05
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