MPEC 2018-H46 : 2018 HJ
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M.P.E.C. 2018-H46 Issued 2018 Apr. 20, 15:16 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
2018 HJ
Observations:
K18H00J C2018 03 20.45264 12 39 26.678-13 29 37.71 21.6 wUEH046F51
K18H00J C2018 03 20.46426 12 39 25.845-13 29 39.29 21.7 wUEH046F51
K18H00J* C2018 04 16.27613 12 00 11.65 -13 12 59.1 20.8 GUEH046G96
K18H00J C2018 04 16.28129 12 00 11.13 -13 12 58.7 21.4 GUEH046G96
K18H00J C2018 04 16.28644 12 00 10.65 -13 12 57.0 21.0 GUEH046G96
K18H00J C2018 04 16.29160 12 00 10.16 -13 12 56.0 21.9 GUEH046G96
K18H00J |C2018 04 17.01162 11 59 04.41 -13 10 23.3 20.9 GUEH046807
K18H00J |C2018 04 17.01822 11 59 03.79 -13 10 22.2 20.8 GUEH046807
K18H00J |C2018 04 17.02481 11 59 03.17 -13 10 21.0 21.0 GUEH046807
K18H00J C2018 04 17.88140 11 57 44.37 -13 07 50.6 20.6 VSEH046033
K18H00J C2018 04 17.88515 11 57 44.01 -13 07 49.7 21.1 VSEH046033
K18H00J C2018 04 17.88890 11 57 43.67 -13 07 48.9 20.4 VSEH046033
K18H00J C2018 04 17.89265 11 57 43.31 -13 07 48.4 20.9 VSEH046033
K18H00J C2018 04 18.14309 11 57 21.00 -13 06 54.9 20.9 GUEH046I52
K18H00J C2018 04 18.14643 11 57 20.65 -13 06 54.3 20.7 GUEH046I52
K18H00J C2018 04 18.14974 11 57 20.37 -13 06 54.3 21.0 GUEH046I52
K18H00J C2018 04 18.15308 11 57 20.06 -13 06 53.2 20.4 GUEH046I52
K18H00J C2018 04 18.87766 11 56 14.49 -13 04 29.9 21.1 VSEH046033
K18H00J C2018 04 18.88141 11 56 14.14 -13 04 29.6 20.9 VSEH046033
K18H00J C2018 04 18.88516 11 56 13.79 -13 04 28.5 20.7 VSEH046033
K18H00J C2018 04 18.88892 11 56 13.44 -13 04 27.6 20.7 VSEH046033
K18H00J |C2018 04 19.03856 11 56 00.47 -13 03 38.8 20.8 GUEH046807
K18H00J |C2018 04 19.04267 11 56 00.10 -13 03 38.4 20.6 GUEH046807
K18H00J |C2018 04 19.04737 11 55 59.66 -13 03 37.7 20.8 GUEH046807
K18H00J C2018 04 19.84969 11 54 48.36 -13 01 10.3 21.0 VSEH046033
K18H00J C2018 04 19.89220 11 54 44.46 -13 01 01.0 20.3 VSEH046033
K18H00J C2018 04 20.16601 11 54 20.74 -13 00 01.2 21.1 GUEH046I52
K18H00J C2018 04 20.17285 11 54 20.17 -12 59 59.9 21.7 GUEH046I52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers C. Hoegner,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
807 Cerro Tololo. Observers T. Linder, R. Holmes. 0.61-m f/6.5 astrograph
+ CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers B. M. Africano,
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers J. A. Johnson,
E. J. Christensen. Measurers B. M. Africano, E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector
+ CCD.
Orbital elements:
2018 HJ Earth MOID = 0.1369 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 319.41074 (2000.0) P Q
n 0.30864628 Peri. 314.91166 +0.20540859 +0.97703762
a 2.1685130 Node 326.82006 -0.86625874 +0.15459233
e 0.4778081 Incl. 5.93743 -0.45541531 +0.14662432
P 3.19 H 20.2 G 0.15 U 6
Residuals in seconds of arc
180320 F51 0.0 0.0 180417 033 0.0 0.1+ 180418 033 0.1- 0.1+
180320 F51 0.0 0.0 180417 033 0.2+ 0.2+ 180419 807 0.2- 0.7+
180416 G96 0.2+ 0.0 180417 033 0.1+ 0.1- 180419 807 0.0 0.3+
180416 G96 0.0 0.6- 180418 I52 0.4- 0.4+ 180419 807 0.0 0.1+
180416 G96 0.3+ 0.1+ 180418 I52 0.9- 0.3+ 180419 033 0.4+ 0.5-
180416 G96 0.5+ 0.1+ 180418 I52 0.4- 0.3- 180419 033 0.4+ 0.0
180417 807 0.2- 0.1+ 180418 I52 0.3- 0.1+ 180420 I52 0.3- 0.2-
180417 807 0.0 0.0 180418 033 0.1- 0.1+ 180420 I52 0.6+ 0.3-
180417 807 0.2+ 0.0 180418 033 0.1- 0.4-
180417 033 0.0 0.1- 180418 033 0.1- 0.0
Ephemeris:
2018 HJ a,e,i = 2.17, 0.48, 6 q = 1.1324
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 03 21 12 38 49.5 -13 30 45 0.7736 1.7515 163.5 9.3 21.5
...
2018 04 05 12 18 03.9 -13 38 18 0.6647 1.6563 168.1 7.2 20.9
...
2018 04 13 12 05 20.6 -13 22 26 0.6261 1.6056 160.1 12.3 20.9
...
2018 04 19 11 56 03.6 -13 03 52 0.6054 1.5677 152.9 16.9 21.0
2018 04 20 11 54 35.1 -13 00 26 0.6025 1.5614 151.7 17.8 21.0
2018 04 21 11 53 08.2 -12 56 55 0.5999 1.5552 150.5 18.6 21.0
...
2018 04 27 11 45 10.0 -12 35 26 0.5871 1.5177 143.2 23.4 21.1
...
2018 05 05 11 36 58.8 -12 09 21 0.5772 1.4686 133.9 29.7 21.1
...
2018 05 20 11 31 11.1 -11 47 50 0.5722 1.3801 118.5 40.1 21.3
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-H46
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