MPEC 2020-T99 : 2015 TT238
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M.P.E.C. 2020-T99 Issued 2020 October 12, 13:27 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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
2015 TT238
Revision to MPEC 2015-U15
Additional Observations:
K15TN8T C2020 10 11.24408101 09 13.40 +41 40 45.9 21.06GVET099G96
K15TN8T C2020 10 11.24934701 09 09.54 +41 40 49.2 21.45GVET099G96
K15TN8T C2020 10 11.25460401 09 05.69 +41 40 52.8 21.27GVET099G96
K15TN8T C2020 10 11.25985801 09 01.84 +41 40 56.1 21.18GVET099G96
K15TN8T KC2020 10 11.36146701 07 47.73 +41 41 48.2 21.12GVET099V06
K15TN8T KC2020 10 11.36363401 07 46.15 +41 41 49.1 21.96GVET099V06
K15TN8T KC2020 10 11.36580101 07 44.57 +41 41 49.8 20.82GVET099V06
K15TN8T KC2020 10 12.17827500 58 41.16 +41 46 48.9 21.70GVET099V06
K15TN8T KC2020 10 12.18005200 58 39.91 +41 46 49.3 21.56GVET099V06
K15TN8T KC2020 10 12.18182800 58 38.71 +41 46 50.2 21.16GVET099V06
K15TN8T KC2020 10 12.18360500 58 37.43 +41 46 51.0 21.17GVET099V06
Observer details:
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
V06 Catalina Sky Survey-Kuiper. Observer D. Rankin. Measurers E. J.
Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m reflector +
1K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
201011 G96 0.28+ 0.13+ 201012 V06 0.27+ 0.14+ MPO361286 +0.04 days
Orbital elements:
2015 TT238 Earth MOID = 0.0246 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 225.56006 (2000.0) P Q
n 1.18285907 Peri. 216.05812 -0.76075512 +0.64887361
a 0.8854840 Node 4.48302 -0.54292411 -0.62384265
e 0.2502372 Incl. 10.80432 -0.35564739 -0.43564135
P 0.83 H 24.6 G 0.15 U 3
Residuals in seconds of arc
151012 G96 0.4- 0.2- 151017 H21 0.1+ 0.3- 201011 G96 0.1- 0.2+
151012 G96 0.8- 0.6- 151102 H21 0.2+ 0.1- 201011 G96 0.3- 0.4+
151012 G96 0.3+ 0.5- 151102 H21 0.1+ 0.1- 201011 G96 0.4- 0.4+
151012 G96 0.2+ 0.1+ 151102 H21 0.2+ 0.1+ 201011 V06 0.0 0.2+
151012 G96 0.1+ 0.2- 151103 568 0.1+ 0.1+ 201011 V06 0.1- 0.2+
151012 G96 0.5+ 0.8- 151103 568 0.1- 0.1- 201011 V06 0.1- 0.1+
151012 G96 1.5+ 0.1- 151105 568 0.0 0.0 201012 V06 0.1- 0.3+
151016 G96 0.1- 0.5- 151105 568 0.0 0.1- 201012 V06 0.2- 0.0
151016 G96 0.0 0.7+ 151107 705 0.1- 0.0 201012 V06 0.2+ 0.1+
151016 G96 0.1- 0.0 151107 705 0.0 0.3+ 201012 V06 0.2- 0.1+
151017 H21 0.1+ 0.1- 151107 705 0.1+ 0.0
151017 H21 0.1- 0.2- 201011 G96 0.1+ 0.4+
Ephemeris:
2015 TT238 a,e,i = 0.89, 0.25, 11 q = 0.6639
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 09 12 05 26 58.1 +08 51 06 0.1168 1.0090 87.9 85.5 23.0
...
2020 09 27 03 53 53.1 +28 46 42 0.09190 1.0530 121.3 54.4 21.5
...
2020 10 05 02 25 33.0 +38 32 11 0.09213 1.0713 139.1 37.7 21.1
...
2020 10 11 01 12 00.9 +41 38 06 0.1006 1.0826 145.3 31.6 21.1
2020 10 12 01 00 36.8 +41 45 57 0.1027 1.0843 145.6 31.4 21.2
2020 10 13 00 49 39.2 +41 48 16 0.1049 1.0859 145.6 31.3 21.2
...
2020 10 19 23 54 58.2 +40 37 48 0.1214 1.0944 142.1 34.0 21.6
...
2020 10 27 23 10 33.0 +37 32 07 0.1492 1.1023 133.8 40.6 22.3
...
2020 11 11 22 40 07.2 +32 34 29 0.2095 1.1069 119.0 51.5 23.3
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-T99
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