MPEC 2023-S228 : 2001 SD270
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M.P.E.C. 2023-S228 Issued 2023 September 26, 13:56 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
2001 SD270
Revision to MPEC 2001-S62
Additional Observations:
K01SR0D C2023 09 16.37734 02 51 27.48 +16 03 12.5 21.9 GVES228G96
K01SR0D C2023 09 16.38251 02 51 28.18 +16 03 46.7 21.6 GVES228G96
K01SR0D C2023 09 16.38767 02 51 28.94 +16 04 20.8 VES228G96
K01SR0D 1C2023 09 24.43026403 14 23.762+32 45 13.90 20.71GVES228G96
K01SR0D 1C2023 09 24.43600403 14 24.846+32 46 00.80 20.86GVES228G96
K01SR0D 1C2023 09 24.44173403 14 25.919+32 46 48.25 20.79GVES228G96
K01SR0D 1C2023 09 24.44745003 14 26.977+32 47 35.09 20.77GVES228G96
K01SR0D KC2023 09 24.48832703 14 34.660+32 53 11.18 21.48GVES228I52
K01SR0D KC2023 09 24.48939603 14 34.804+32 53 20.18 20.88GVES228I52
K01SR0D KC2023 09 24.49046403 14 34.973+32 53 29.47 21.06GVES228I52
K01SR0D KC2023 09 24.49154103 14 35.214+32 53 37.39 21.29GVES228I52
K01SR0D KB2023 09 25.02686403 16 26.91 +34 07 21.4 21.0 GVES228I93
K01SR0D KB2023 09 25.03383003 16 28.29 +34 08 19.6 21.1 GVES228I93
K01SR0D KB2023 09 25.04079403 16 29.64 +34 09 17.9 20.8 GVES228I93
K01SR0D C2023 09 25.47265003 17 58.483+35 09 27.45 20.8 GVES228H01
K01SR0D C2023 09 25.47816203 17 59.564+35 10 13.30 20.9 GVES228H01
K01SR0D C2023 09 25.48645703 18 01.204+35 11 22.35 20.9 GVES228H01
K01SR0D C2023 09 25.49633003 18 03.161+35 12 44.42 20.9 GVES228H01
Observer details:
G96 Mt. Lemmon Survey. Observers J. K. Hogan, K. W. Wierzchos. Measurers B.
Gray, D. Rankin, F. C. Shelly, E. J. Christensen, D. Fay, J. B. Fazekas,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A.
Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, A. Serrano, K. W.
Wierzchos. 1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer A. Serrano. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CMO.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230916 G96 101- 12- 230925 H01 85- 9- MPO734000 -113 days
Orbital elements:
2001 SD270 Earth MOID = 0.1646 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Bell
M 347.56205 (2000.0) P Q
n 0.26922422 Peri. 43.44563 +0.68410985 -0.72890274
a 2.3753446 Node 3.69257 +0.50545589 +0.44772644
e 0.5458114 Incl. 24.15435 +0.52584033 +0.51792068
P 3.66 H 22.14 G 0.15 U 1
Residuals in seconds of arc
010926 704 0.7- 0.2- 010927 413 0.3- 0.5+ 230924 G96 0.1- 0.2+
010926 704 0.6- 0.2+ 010927 413 0.3+ 0.5- 230924 G96 0.1+ 0.2-
010926 704 0.8- 1.4+ 010927 344 0.2- 0.7+ 230924 G96 0.2+ 0.0
010926 704 0.8- 0.7+ 010927 344 0.4+ 0.9- 230924 G96 0.1+ 0.2-
010926 704 1.0- 1.7+ 010927 046 1.1- 2.2+ 230924 I52 0.7+ 0.2-
010927 704 1.1+ 0.1+ 010927 046 0.4+ 0.5+ 230924 I52 0.0 0.0
010927 704 1.1+ 0.3- 010927 046 1.7- 0.6- 230924 I52 0.4- 0.5+
010927 704 0.3+ 0.3+ 010927 046 0.8- 0.0 230924 I52 0.1+ 0.4-
010927 704 0.5+ 0.9- 010927 046 1.0- 1.3- 230925 I93 0.2+ 0.0
010927 704 0.6+ 0.8+ 011006 649 0.5+ 0.6- 230925 I93 0.3+ 0.1-
010927 704 0.2- 0.5- 011006 649 0.5+ 0.4+ 230925 I93 0.1+ 0.0
010927 704 0.9+ 0.7+ 011006 649 0.3+ 0.5- 230925 H01 0.2+ 0.1-
010927 704 0.5+ 0.3- 230916 G96 0.2- 0.5- 230925 H01 0.1+ 0.2-
010927 704 1.3+ 0.5+ 230916 G96 0.3- 0.2- 230925 H01 0.1+ 0.2-
010927 704 0.3+ 0.0 230916 G96 0.5+ 0.1+ 230925 H01 0.1+ 0.2-
Ephemeris:
2001 SD270 a,e,i = 2.38, 0.55, 24 q = 1.0789
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 27 02 09 41.3 -08 29 00 0.4481 1.3122 123.5 40.0 22.6
...
2023 09 11 02 39 03.7 +07 17 09 0.3134 1.2237 127.6 40.7 21.7
...
2023 09 19 02 58 10.6 +21 03 14 0.2632 1.1827 127.2 42.6 21.3
...
2023 09 25 03 16 19.9 +34 03 41 0.2407 1.1555 124.1 45.9 21.1
2023 09 26 03 19 52.5 +36 23 04 0.2384 1.1513 123.4 46.7 21.1
2023 09 27 03 23 36.9 +38 43 53 0.2366 1.1472 122.5 47.5 21.1
...
2023 10 03 03 51 39.0 +52 45 37 0.2350 1.1249 116.3 52.9 21.2
...
2023 10 11 04 57 37.7 +68 37 15 0.2547 1.1015 107.3 60.0 21.5
...
2023 10 26 10 04 58.0 +78 23 20 0.3298 1.0796 96.0 66.4 22.2
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-S228
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