[Iaude] MPEC L84: 2021 SN1 [a=1.79,e=0.78,i=12.4,H=21.07]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Fri Jun 7 11:01:10 EDT 2024
M.P.E.C. 2024-L84 Issued 2024 June 7, 14:59 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
2021 SN1
Revision to MPEC 2021-S116
Additional Observations:
K21S01N C2009 09 18.45165823 11 56.956+13 10 42.93 21.77GVEL084F51
K21S01N C2009 09 18.46053723 11 55.455+13 10 33.90 21.89GVEL084F51
K21S01N 0C2024 06 02.25387908 26 32.580+33 46 55.53 23.38GVEL084T14
K21S01N 0C2024 06 02.25485808 26 33.495+33 46 56.75 23.16GVEL084T14
K21S01N 0C2024 06 03.25354808 42 39.557+34 05 32.04 22.69GVEL084T14
K21S01N 0C2024 06 03.25545208 42 41.412+34 05 33.57 22.67GVEL084T14
K21S01N 0C2024 06 03.25735808 42 43.277+34 05 35.08 22.68GVEL084T14
K21S01N KC2024 06 06.16035109 32 21.410+34 13 48.54 21.9 GVEL084I52
K21S01N KC2024 06 06.17929409 32 41.227+34 13 35.06 21.8 GVEL084I52
K21S01N KC2024 06 06.19792409 33 00.761+34 13 21.75 21.6 GVEL084I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. Rankin. Measurers
D. Rankin, D. Parrott. 1.00-m f/2.0 prime focus + CCD + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea. Observers L. Wells, J. Silva.
Measurer D. J. Tholen. 3.6-m f/4.1 reflector + 1024 x 2306 pixels
Megacam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
090918 F51 18.8- 9.6- 240606 I52 24.1- 11.7- MPO740976 +0.04 days
Orbital elements:
2021 SN1 PHA, Earth MOID = 0.0271 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 348.35744 (2000.0) P Q
n 0.41266580 Peri. 284.81277 -0.67366475 -0.73198429
a 1.7867772 Node 208.37116 +0.73328222 -0.64487381
e 0.7790298 Incl. 12.37760 +0.09204884 -0.21985626
P 2.39 H 21.07 G 0.15 U 0
Residuals in seconds of arc
090918 F51 0.4+ 0.0 211004 F51 0.0 0.1+ 211010 A17 0.2- 0.2-
090918 F51 0.2+ 0.0 211004 F51 0.1- 0.1+ 211010 K38 0.6+ 0.2+
210909 F52 0.0 0.3- 211004 T05 0.0 0.8+ 211011 F51 0.0 0.0
210909 F52 0.2+ 0.0 211004 T05 0.4- 0.4+ 211011 F51 0.1+ 0.1+
210909 F52 0.1+ 0.2- 211004 T05 0.4+ 0.0 211011 F51 0.1+ 0.0
210909 F52 0.3- 0.2+ 211004 T05 0.3- 0.7+ 211011 D29 0.1+ 0.2-
210916 G96 0.0 0.9- 211004 D29 0.2- 0.1- 211011 D29 0.2- 0.2+
210916 G96 0.5+ 0.8- 211004 D29 0.0 0.1+ 211011 D29 0.3- 0.0
210916 G96 0.2- 0.2+ 211004 D29 0.2- 0.3+ 211013 G40 0.1+ 0.4+
210928 F52 0.1- 0.0 211006 F51 0.0 0.1+ 211013 G40 0.2+ 0.1+
210928 F52 0.1- 0.0 211006 F51 0.0 0.0 211013 H21 0.7+ 0.4+
210928 F52 0.1- 0.0 211006 F51 8.0- 3.3- 211013 H21 0.0 0.3+
210928 F51 0.1- 0.1- 211006 F51 0.0 0.1+ 211013 H21 0.3- 0.4+
210928 F51 0.1+ 0.0 211008 691 0.1+ 0.2- 211018 H21 0.1- 0.3+
210928 F51 0.0 0.0 211008 691 0.5+ 0.1+ 211018 H21 0.1+ 0.1+
210928 L01 0.3- 0.4+ 211008 691 0.4- 0.1- 211018 H21 0.1+ 0.3+
210928 L01 0.4- 0.8+ 211008 Z43 0.2- 0.1+ 211018 H21 0.0 0.2+
210928 L01 0.1- 0.5+ 211008 Z43 0.1- 0.4+ 211018 H21 0.0 0.1+
210928 L01 0.1- 0.0 211008 Z43 0.1- 0.1- 211018 H21 0.2- 0.3+
210928 L01 0.6- 0.4- 211008 K87 0.5+ 0.7- 211019 C51 0.2- 0.7-
210929 W34 0.1- 0.0 211008 K87 0.9+ 0.5- 211019 C51 0.8- 0.7-
210929 W34 0.4+ 0.2- 211008 K87 1.5+ 0.9- 211025 691 0.4+ 0.5+
210929 W34 0.2+ 0.0 211009 K88 0.5- 0.2- 211025 691 0.5+ 0.1+
210929 H21 0.3- 0.1- 211009 K88 0.4+ 0.3+ 240602 T14 0.1- 0.1-
210929 H21 0.1- 0.1- 211009 K88 0.2- 0.3+ 240602 T14 0.2- 0.2-
210929 H21 0.1- 0.1- 211009 K87 1.0+ 0.8- 240603 T14 0.1- 0.1-
210929 F51 0.0 0.0 211009 K87 0.1- 0.6- 240603 T14 0.2- 0.2-
210929 F51 0.1- 0.0 211009 K87 0.7+ 0.5+ 240603 T14 0.3- 0.2-
210929 F51 0.1- 0.0 211010 A17 0.2- 0.2- 240606 I52 0.4+ 0.5+
211002 G40 0.3+ 0.1- 211010 A17 0.3+ 0.1- 240606 I52 0.1+ 0.0
211002 G40 0.3+ 0.2- 211010 K38 0.0 0.2+ 240606 I52 0.1+ 0.3-
Ephemeris:
2021 SN1 a,e,i = 1.79, 0.78, 12 q = 0.3948
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 05 08 04 48 26.4 +18 56 22 0.7756 0.4581 25.7 107.0 22.8
...
2024 05 23 06 23 37.1 +27 10 43 0.4585 0.6786 33.4 124.7 23.8
...
2024 05 31 07 52 49.1 +32 42 42 0.3538 0.8060 45.4 116.3 22.9
...
2024 06 06 09 29 33.5 +34 15 24 0.3155 0.8994 60.0 102.3 22.1
2024 06 07 09 47 08.0 +34 02 04 0.3132 0.9147 62.7 99.6 22.0
2024 06 08 10 04 42.1 +33 39 20 0.3121 0.9299 65.5 96.7 21.9
...
2024 06 14 11 41 01.0 +28 40 03 0.3295 1.0195 81.3 80.0 21.5
...
2024 06 22 13 08 17.2 +19 35 37 0.4045 1.1339 96.2 63.0 21.6
...
2024 07 07 14 29 20.2 +07 37 16 0.6262 1.3336 106.1 47.1 22.5
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-L84
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