[Iaude] MPEC L46: 2018 BT6 [a=2.25,e=0.83,i=3.0,H=21.32]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Tue Jun 4 10:14:11 EDT 2024
M.P.E.C. 2024-L46 Issued 2024 June 4, 14:12 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
2018 BT6
Revision to MPEC 2018-B166
Additional Observations:
K18B06T C2024 06 02.33406714 58 41.117-23 03 33.41 22.36GVEL046F51
K18B06T C2024 06 02.34515314 58 39.139-23 03 25.24 22.48GVEL046F51
K18B06T C2024 06 02.35617414 58 37.174-23 03 17.12 VEL046F51
K18B06T 0C2024 06 02.40774814 58 27.991-23 02 39.18 22.80GVEL046T14
K18B06T 0C2024 06 02.40895614 58 27.774-23 02 38.35 22.97GVEL046T14
K18B06T 0C2024 06 02.41017114 58 27.557-23 02 37.48 23.11GVEL046T14
K18B06T 0C2024 06 03.30180114 55 52.944-22 51 38.04 23.28GVEL046T14
K18B06T 0C2024 06 03.30323914 55 52.690-22 51 37.00 23.27GVEL046T14
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.
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 (or two decimals in degrees), reference and Delta-T
240602 F51 0.51+ 0.22+ 240603 T14 0.50+ 0.22+ MPO473494 +0.98 days
Orbital elements:
2018 BT6 PHA, Earth MOID = 0.0016 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 310.72371 (2000.0) P Q
n 0.29191516 Peri. 72.11747 +0.94357488 -0.32851069
a 2.2505998 Node 307.04054 +0.28054875 +0.86004023
e 0.8275885 Incl. 3.00173 +0.17595125 +0.39039918
P 3.38 H 21.32 G 0.15 U 1
Residuals in seconds of arc
180127 703 0.5- 0.1- 180129 J69 1.3- 0.6+ 180205 703 0.1+ 0.4-
180127 703 (1.6- 1.8+) 180129 J69 1.4- 0.5+ 180205 703 0.1- 0.2-
180127 703 1.3+ 0.4- 180129 J69 1.5- 0.8+ 180206 I52 0.1+ 0.0
180127 I52 0.1- 0.2+ 180129 J69 1.4- 0.8+ 180206 I52 0.1- 0.1+
180127 I52 0.1+ 0.3+ 180129 J95 0.1+ 0.1- 180206 I52 0.0 0.1+
180127 I52 0.1+ 0.1+ 180129 J95 0.2+ 0.1- 180206 I52 0.3+ 0.0
180127 I52 0.1- 0.1+ 180129 J95 0.4+ 0.2- 180206 I52 0.2+ 0.3-
180127 H01 0.2- 0.1+ 180130 Z80 0.3- 0.5- 180206 I52 0.2+ 0.0
180127 H01 0.0 0.1+ 180130 Z80 0.2- 0.4- 180206 I52 0.1+ 0.1-
180127 H01 0.0 0.1+ 180130 Z80 0.3+ 0.1- 180206 I52 0.0 0.2-
180127 H01 0.2+ 0.1- 180130 Z80 0.4+ 0.1- 180206 703 (0.8+ 2.7+)
180127 H06 0.2- 0.1+ 180130 Z80 0.4+ 0.3+ 180206 703 0.0 1.1+
180127 H06 0.5- 0.3+ 180130 X31 (3.6- 0.4-) 180206 703 0.0 0.6+
180127 H06 0.2- 0.6+ 180130 X31 1.5- 0.8+ 180207 I52 0.1- 0.1+
180128 K63 0.5- 0.1- 180130 X31 (3.2- 1.6-) 180207 I52 0.2+ 0.2-
180128 K63 0.1+ 0.1+ 180130 926 0.1- 0.0 180207 I52 0.2+ 0.4+
180128 K63 (0.7- 1.4+) 180130 926 0.0 0.2+ 180207 I52 0.2- 0.2-
180128 104 0.1+ 0.1+ 180130 926 0.1+ 0.1+ 180208 I52 0.2+ 0.3-
180128 104 0.3+ 0.2+ 180130 926 0.0 0.2+ 180208 I52 0.1- 0.0
180128 104 0.3+ 0.2+ 180130 926 0.5- 0.2+ 180208 I52 0.4+ 0.0
180128 C95 0.3- 0.4+ 180130 926 0.2- 0.1+ 180208 I52 0.3+ 0.1+
180128 C95 0.4+ 0.1- 180130 W88 0.2+ 0.3- 180208 703 0.2- 0.1+
180128 C95 0.2+ 0.1- 180130 W88 0.1- 0.1+ 180208 703 0.1+ 0.1-
180128 C95 0.2+ 0.1+ 180130 H06 0.3+ 0.0 180208 703 0.1+ 0.3+
180128 204 0.0 0.2+ 180130 H06 0.1- 0.4- 180208 703 0.5- 0.3-
180128 204 0.1- 0.0 180130 H06 0.5+ 0.9- 180208 703 0.1- 0.2+
180128 204 0.1+ 0.0 180130 926 0.1- 0.2- 180208 703 0.0 0.0
180128 204 0.0 0.1+ 180130 926 0.1- 0.2+ 180208 703 0.9+ 0.5-
180128 204 0.1+ 0.0 180130 926 0.0 0.2+ 180208 703 0.0 0.0
180128 Y00 0.7+ 0.0 180130 926 0.1+ 0.1+ 180209 I52 0.2- 0.1+
180128 Y00 1.0+ 0.2+ 180130 926 0.5+ 0.0 180209 I52 0.0 0.5-
180128 Y00 1.2+ 0.1- 180130 926 0.6- 0.2- 180209 I52 0.1+ 0.4-
180128 Y00 1.9+ 0.7- 180130 E94 1.3- 0.5+ 180209 I52 0.0 0.4-
180128 Y00 1.6+ 0.8- 180130 E94 (2.1- 1.6+) 180211 I52 0.0 0.0
180128 Y00 1.6+ 0.5- 180130 E94 0.7- 1.0+ 180211 I52 0.3- 1.0+
180128 Y00 0.8+ 0.4- 180203 W88 0.2- 0.1- 180211 I52 (0.1- 1.9+)
180128 Y00 1.4+ 0.2- 180203 W88 0.2- 0.0 180211 I41 0.3- 0.1-
180128 Y00 0.8+ 0.6- 180203 W88 0.3- 0.1- 180211 I41 0.2- 0.0
180128 H36 0.9- 0.5+ 180203 W88 0.2+ 0.1- 180211 I41 0.2- 0.1+
180128 I52 0.0 0.1- 180203 T08 0.6+ 0.2- 180211 I41 0.3- 0.0
180128 H36 1.0- 0.1+ 180203 T08 0.1+ 0.2- 180211 I41 0.5- 0.1+
180128 I52 0.5+ 0.2- 180203 T08 0.2+ 0.2+ 180211 F51 0.1+ 0.1-
180128 I52 0.2- 0.0 180203 T08 0.1+ 0.1+ 180211 F51 0.0 0.1-
180128 I52 0.1- 0.1- 180204 204 0.0 0.1+ 180211 F51 0.1- 0.0
180128 H36 0.6- 0.1+ 180204 204 0.2- 0.1- 180212 F51 0.1+ 0.0
180128 G48 2.1- 0.7- 180204 204 0.0 0.1+ 180212 F51 0.1+ 0.0
180128 G48 3.1- 0.5- 180204 I52 0.0 0.1- 180212 J43 0.0 0.2+
180128 G48 1.7- 0.1+ 180204 I52 0.4+ 0.0 180212 J43 0.0 0.1+
180128 G48 4.0+ 0.9- 180204 I52 0.3+ 0.0 180213 J43 0.3- 0.0
180128 G48 0.7+ 0.2- 180204 I52 0.2+ 0.0 180213 J43 0.2+ 0.1+
180128 G48 2.9+ 0.8- 180204 T08 0.1- 0.0 180213 F51 0.1+ 0.0
180128 G48 3.0+ 1.9- 180204 T08 0.6+ 0.0 180213 F51 0.1+ 0.1-
180128 R57 0.0 0.5- 180204 T08 0.2- 0.2+ 180214 F51 0.1+ 0.0
180128 R57 0.2+ 0.4- 180204 T08 0.3+ 0.0 180218 F51 0.0 0.0
180128 R57 0.1- 0.2- 180204 C47 0.2- 0.1+ 180218 F51 0.1+ 0.0
180128 R57 0.1+ 0.3- 180204 C47 0.0 0.1+ 180218 F51 0.4+ 0.2+
180129 W88 0.4- 0.1- 180204 C47 0.2- 0.0 180309 291 0.1- 0.1+
180129 W88 0.4- 0.1- 180204 C47 0.2+ 0.3- 180309 291 0.3- 0.1-
180129 W88 0.2- 0.0 180204 C47 0.1- 0.1+ 240602 F51 0.1- 0.2-
180129 W88 0.1- 0.4- 180204 C47 0.1+ 0.1- 240602 F51 0.1- 0.0
180129 W88 0.2- 0.0 180204 C47 0.1+ 0.0 240602 F51 0.1- 0.0
180129 R57 0.3+ 0.2- 180205 I52 0.1+ 0.3- 240602 T14 0.1+ 0.1+
180129 R57 0.3+ 0.3- 180205 I52 0.0 0.2+ 240602 T14 0.0 0.0
180129 R57 0.0 0.1- 180205 I52 0.2- 0.2+ 240602 T14 0.0 0.0
180129 R57 0.2+ 0.3- 180205 I52 0.1+ 0.1- 240603 T14 0.0 0.0
180129 J69 1.2- 0.3+ 180205 703 0.0 0.1+ 240603 T14 0.0 0.0
180129 J69 1.2- 0.6+ 180205 703 0.2+ 0.2-
Ephemeris:
2018 BT6 a,e,i = 2.25, 0.83, 3 q = 0.3880
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 05 05 16 07 06.6 -26 14 59 1.1599 2.1331 159.2 9.7 23.9
...
2024 05 20 15 35 22.7 -25 10 39 0.9690 1.9782 174.1 3.0 23.0
...
2024 05 28 15 13 57.0 -24 02 51 0.8950 1.8911 164.6 8.2 23.0
...
2024 06 03 14 56 45.4 -22 55 17 0.8527 1.8237 155.2 13.5 23.1
2024 06 04 14 53 51.3 -22 42 44 0.8468 1.8123 153.5 14.4 23.1
2024 06 05 14 50 57.3 -22 29 51 0.8411 1.8008 151.9 15.4 23.1
...
2024 06 11 14 33 45.4 -21 06 31 0.8131 1.7307 142.1 21.1 23.1
...
2024 06 19 14 12 17.2 -19 05 12 0.7896 1.6340 129.2 28.8 23.1
...
2024 07 04 13 39 59.9 -15 20 59 0.7734 1.4416 106.5 42.5 23.2
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-L46
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