[Iaude] MPEC X38: 2020 KT4 [a=1.20,e=0.29,i=4.2,H=23.27]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Dec 4 15:36:20 EST 2023
M.P.E.C. 2023-X38 Issued 2023 December 4, 20:34 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
2020 KT4
Revision to MPEC 2020-K176
Additional Observations:
K20K04T C2023 11 22.39580 05 02 02.36 +19 13 12.8 19.9 GVEX038G96
K20K04T C2023 11 22.40190 05 02 02.09 +19 13 19.2 20.6 GVEX038G96
K20K04T C2023 11 22.40801 05 02 01.69 +19 13 24.8 20.3 GVEX038G96
K20K04T C2023 11 22.41412 05 02 01.36 +19 13 30.9 20.4 GVEX038G96
K20K04T 1C2023 12 03.34993304 48 45.425+24 08 16.01 VEX038G96
K20K04T 1C2023 12 03.35508404 48 44.636+24 08 28.18 18.84GVEX038G96
K20K04T 1C2023 12 03.36025304 48 43.830+24 08 40.31 18.72GVEX038G96
K20K04T 1C2023 12 03.36540104 48 43.027+24 08 52.48 18.92GVEX038G96
K20K04T C2023 12 03.45498004 48 32.971+24 12 47.81 18.62oVEX038T05
K20K04T C2023 12 03.45814504 48 32.450+24 12 54.97 18.54oVEX038T05
K20K04T C2023 12 03.46277104 48 31.668+24 13 05.88 18.88oVEX038T05
K20K04T C2023 12 03.46367504 48 31.541+24 13 08.51 18.42oVEX038T05
K20K04T C2023 12 03.46593504 48 31.135+24 13 13.98 18.20oVEX038T05
K20K04T C2023 12 03.47153604 48 30.254+24 13 27.80 18.88oVEX038T05
K20K04T C2023 12 03.47482704 48 29.760+24 13 35.08 18.57oVEX038T05
K20K04T C2023 12 04.32915604 46 42.499+24 49 27.28 19.00wXEX038F51
K20K04T C2023 12 04.34341004 46 40.100+24 50 06.33 18.93wXEX038F51
K20K04T C2023 12 04.35753104 46 37.696+24 50 44.73 19.04wXEX038F51
K20K04T C2023 12 04.37300304 46 35.028+24 51 26.67 18.97wXEX038F51
K20K04T C2023 12 04.61028504 45 54.214+25 01 38.41 18.57GVEX038F52
K20K04T C2023 12 04.61110104 45 54.090+25 01 40.38 18.49GVEX038F52
K20K04T B2023 12 04.65430 04 45 55.59 +25 03 42.7 18.0 GVEX038O46
K20K04T B2023 12 04.66547 04 45 53.67 +25 04 12.7 18.0 GVEX038O46
K20K04T B2023 12 04.66987 04 45 52.84 +25 04 25.2 18.4 GVEX038O46
K20K04T B2023 12 04.67418 04 45 52.08 +25 04 37.1 18.3 GVEX038O46
K20K04T B2023 12 04.67847 04 45 51.38 +25 04 48.1 18.3 GVEX038O46
K20K04T B2023 12 04.68275 04 45 50.70 +25 05 00.0 18.6 GVEX038O46
K20K04T KC2023 12 04.75223 04 45 43.51 +25 07 27.6 18.2 VqEX038L04
K20K04T KC2023 12 04.75899 04 45 42.44 +25 07 46.9 18.3 VqEX038L04
K20K04T KC2023 12 04.75988 04 45 42.30 +25 07 49.4 18.9 VqEX038L04
K20K04T KC2023 12 04.76484 04 45 41.50 +25 08 03.8 18.5 VqEX038L04
K20K04T KC2023 12 04.79249 04 45 37.76 +25 09 29.3 19.6 VZEX038M63
K20K04T KC2023 12 04.79974 04 45 36.56 +25 09 50.2 19.5 VZEX038M63
K20K04T KC2023 12 04.80678 04 45 35.43 +25 10 10.2 19.7 VZEX038M63
K20K04T KB2023 12 04.81373 04 45 33.53 +25 10 24.6 18.3 GXEX038M45
K20K04T KB2023 12 04.81633 04 45 33.08 +25 10 32.1 18.4 GXEX038M45
K20K04T KB2023 12 04.81894 04 45 32.64 +25 10 39.5 18.0 GXEX038M45
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.
F52 Pan-STARRS 2, 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.
G96 Mt. Lemmon Survey. Observers K. W. Wierzchos, H. Groeller. Measurers B.
Gray, D. Rankin, F. C. Shelly, E. C. Beshore, 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, K. W. Wierzchos. 1.5-m
reflector + 10K CCD.
L04 ROASTERR-1 Observatory, Cluj-Napoca. Observer L. Hudin. 0.3-m f/5
reflector + CCD.
M45 Starhopper Observatory, Sfantu Gheorghe. Observer F. Ursache. 0.41-m
f/7.5 reflector + CMO.
M63 RPF Observatory, Gagliano del Capo. Observer D. Licchelli. 0.30-m f/5.3
reflector + CCD.
O46 Daocheng Glacier Observatory. Observer Z. Wang. 0.25-m f/8 reflector +
CMO.
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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231122 G96 3.49+ 0.64+ 231204 M45 5.56+ 1.34+ MPO782709 +0.59 days
Orbital elements:
2020 KT4 Earth MOID = 0.0214 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 242.83309 (2000.0) P Q
n 0.75067036 Peri. 90.45058 -0.93186707 -0.35640568
a 1.1990479 Node 68.67099 +0.29713508 -0.85700432
e 0.2863913 Incl. 4.17485 +0.20816943 -0.37218084
P 1.31 H 23.27 G 0.15 U 1
Residuals in seconds of arc
200524 F51 (0.3+ 0.3+) 200528 474 0.4+ 0.1- 231204 F51 0.1- 0.0
200524 F51 0.1- 0.0 200529 I52 0.1- 0.3+ 231204 F51 0.1- 0.0
200524 F51 0.1+ 0.1+ 200529 I52 0.1- 0.0 231204 F51 0.0 0.1-
200525 L01 0.4+ 0.1- 200529 I52 0.3- 0.1- 231204 F51 0.0 0.1-
200525 L01 0.0 0.2- 200531 474 0.1+ 0.1- 231204 F52 0.2+ 0.0
200525 L01 0.3+ 0.5+ 200531 474 0.3+ 0.1- 231204 F52 0.3+ 0.1-
200525 I52 (1.1+ 0.3+) 200531 474 0.3+ 0.0 231204 O46 1.0- 1.1+
200525 I52 0.2- 0.1- 231122 G96 0.1- 0.3+ 231204 O46 0.4- 0.2+
200525 I52 0.4+ 0.0 231122 G96 (0.8+ 0.5+) 231204 O46 1.1- 0.6+
200525 I52 0.7- 0.7+ 231122 G96 0.2- 0.0 231204 O46 1.1- 0.6+
200525 673 0.1+ 0.3- 231122 G96 0.1- 0.1- 231204 O46 0.3- 0.1-
200525 673 0.2- 0.3- 231203 G96 0.2- 0.2+ 231204 O46 0.8+ 0.0
200525 568 0.0 0.0 231203 G96 0.1- 0.2+ 231204 L04 0.2+ 0.0
200525 568 0.0 0.0 231203 G96 0.1- 0.1+ 231204 L04 0.0 0.0
200526 I52 0.3- 0.2+ 231203 G96 0.2- 0.2+ 231204 L04 0.0 0.0
200526 I52 0.2- 0.0 231203 T05 0.4+ 0.1- 231204 L04 0.2- 0.2+
200526 I52 0.2- 0.1+ 231203 T05 0.3+ 0.5- 231204 M63 0.1- 0.0
200526 673 0.1+ 0.6- 231203 T05 0.2- 0.7- 231204 M63 0.3- 0.1+
200526 673 0.0 0.1+ 231203 T05 0.0 0.3- 231204 M63 0.1+ 0.1-
200528 474 0.0 0.0 231203 T05 0.5- 0.2- 231204 M45 0.3+ 0.1+
200528 474 0.1+ 0.1- 231203 T05 0.2- 0.2+ 231204 M45 0.1+ 0.3+
200528 474 0.0 0.0 231203 T05 0.2+ 0.4- 231204 M45 0.1+ 0.3+
Ephemeris:
2020 KT4 a,e,i = 1.20, 0.29, 4 q = 0.8557
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 11 04 05 01 16.2 +16 12 08 0.2743 1.2259 144.6 27.9 22.1
...
2023 11 19 05 03 34.3 +18 20 56 0.1798 1.1582 159.0 17.8 20.8
...
2023 11 27 04 58 20.8 +20 48 33 0.1365 1.1209 168.4 10.2 19.8
...
2023 12 03 04 49 29.4 +23 54 36 0.1071 1.0927 176.0 3.6 19.0
2023 12 04 04 47 23.5 +24 35 16 0.1025 1.0880 176.8 2.9 18.8
2023 12 05 04 45 03.5 +25 19 31 0.09790 1.0834 176.9 2.8 18.7
...
2023 12 11 04 23 54.7 +31 26 16 0.07229 1.0553 166.8 12.3 18.4
...
2023 12 19 03 04 15.9 +47 21 34 0.04463 1.0186 140.1 38.2 18.1
...
2024 01 03 19 08 25.7 +29 08 17 0.04826 0.9545 52.2 125.5 21.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-X38
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