MPEC 2018-H101: 2018 HL2
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M.P.E.C. 2018-H101 Issued 2018 Apr. 29, 11:26 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 HL2
Observations:
K18H02L* C2018 04 26.35090 13 41 21.30 +49 17 32.4 20.5 GUEH101G96
K18H02L C2018 04 26.35907 13 41 16.59 +49 17 23.6 20.0 GUEH101G96
K18H02L C2018 04 26.36437 13 41 13.56 +49 17 17.8 20.3 GUEH101G96
K18H02L C2018 04 26.36967 13 41 10.49 +49 17 12.5 20.3 GUEH101G96
K18H02L C2018 04 26.39938213 40 53.26 +49 16 38.3 19.2 GUEH101H01
K18H02L C2018 04 26.40364813 40 50.80 +49 16 33.6 19.8 GUEH101H01
K18H02L C2018 04 26.41410913 40 44.78 +49 16 22.0 19.6 GUEH101H01
K18H02L C2018 04 26.42447113 40 38.84 +49 16 10.3 19.7 GUEH101H01
K18H02L C2018 04 26.43896 13 40 30.58 +49 15 55.9 19.5 GUEH101I52
K18H02L C2018 04 26.43972 13 40 30.21 +49 15 55.0 19.4 GUEH101I52
K18H02L C2018 04 26.44048 13 40 29.70 +49 15 54.0 19.0 GUEH101I52
K18H02L C2018 04 26.44124 13 40 29.30 +49 15 53.5 19.1 GUEH101I52
K18H02L KC2018 04 26.80716 13 37 06.02 +49 09 19.5 20.1 VSEH101L01
K18H02L KC2018 04 26.82274 13 36 56.82 +49 09 04.0 20.2 VSEH101L01
K18H02L KC2018 04 26.83164 13 36 51.62 +49 08 54.2 19.7 VSEH101L01
K18H02L KC2018 04 26.83737 13 36 48.20 +49 08 48.0 20.0 VSEH101L01
K18H02L KC2018 04 26.84559 13 36 43.70 +49 08 39.0 20.0 VqEH101C95
K18H02L KC2018 04 26.87540 13 36 26.09 +49 08 06.8 19.7 VqEH101C95
K18H02L KC2018 04 26.90520 13 36 08.18 +49 07 33.5 19.5 VqEH101C95
K18H02L C2018 04 27.37630 13 31 27.96 +48 57 53.0 UEH101G96
K18H02L C2018 04 27.37721 13 31 27.53 +48 57 51.0 19.1 GUEH101G96
K18H02L C2018 04 27.37813 13 31 26.86 +48 57 49.2 20.0 GUEH101G96
K18H02L C2018 04 27.37904 13 31 26.39 +48 57 47.1 UEH101G96
K18H02L C2018 04 27.39055 13 31 19.28 +48 57 31.5 20.0 GUEH101I52
K18H02L C2018 04 27.39096 13 31 19.06 +48 57 31.2 20.3 GUEH101I52
K18H02L C2018 04 27.39137 13 31 18.79 +48 57 30.6 19.5 GUEH101I52
K18H02L C2018 04 27.39179 13 31 18.57 +48 57 29.8 UEH101I52
K18H02L KC2018 04 27.81081 13 27 08.57 +48 47 30.9 19.7 VSEH101L01
K18H02L KC2018 04 27.81612 13 27 05.23 +48 47 23.3 19.5 VSEH101L01
K18H02L KC2018 04 28.86577 13 15 56.81 +48 17 27.8 19.4 VqEH101595
K18H02L KC2018 04 28.86971 13 15 54.11 +48 17 20.6 19.2 VqEH101595
K18H02L KC2018 04 28.87389 13 15 51.27 +48 17 11.4 19.6 VqEH101595
K18H02L ^C2018 04 29.21613 13 12 04.21 +48 05 48.2 20.2 RoEH101695
K18H02L ^C2018 04 29.21837 13 12 02.67 +48 05 43.5 20.3 RoEH101695
K18H02L ^C2018 04 29.22061 13 12 01.11 +48 05 38.9 20.3 RoEH101695
Observer details:
595 Farra d'Isonzo. Observers U. Montanar, E. Pettarin. Measurer U. Montanar.
0.61-m f/4.0 reflector + CCD.
695 Kitt Peak. Observer R. A. Mastaler. 2.3-m f/9 reflector + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m
f/3.2 Newtonian reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m reflector + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2018 HL2 PHA, Earth MOID = 0.0092 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 316.44706 (2000.0) P Q
n 0.46601643 Peri. 233.44395 +0.06986302 +0.91658295
a 1.6476637 Node 46.00013 -0.64669139 +0.34210923
e 0.4602846 Incl. 33.18182 -0.75954553 -0.20697093
P 2.11 H 21.0 G 0.15 U 7
Residuals in seconds of arc
180426 G96 0.1- 0.3+ 180426 L01 0.1+ 0.3- 180427 I52 0.3+ 0.1+
180426 G96 0.1- 0.0 180426 L01 0.2- 0.4+ 180427 I52 0.2+ 0.1+
180426 G96 0.2+ 0.2- 180426 L01 0.4+ 0.0 180427 I52 0.5+ 0.1-
180426 G96 0.1+ 0.1+ 180426 L01 0.1+ 0.1- 180427 L01 0.1+ 0.1+
180426 H01 0.2+ 0.0 180426 C95 0.1+ 0.5+ 180427 L01 0.1+ 0.0
180426 H01 0.1+ 0.0 180426 C95 0.7+ 0.2+ 180428 595 0.4+ 0.1+
180426 H01 0.0 0.0 180426 C95 0.9- 0.3- 180428 595 0.0 0.4+
180426 H01 0.0 0.0 180427 G96 0.8- 0.9+ 180428 595 0.2- 0.8-
180426 I52 0.2- 0.1- 180427 G96 0.5+ 0.2+ 180429 695 0.0 0.2+
180426 I52 0.4+ 0.1- 180427 G96 0.5- 0.3- 180429 695 0.1+ 0.1+
180426 I52 0.3- 0.3- 180427 G96 0.3+ 1.1- 180429 695 0.0 0.1+
180426 I52 0.1+ 0.1+ 180427 I52 0.0 0.2-
Ephemeris:
2018 HL2 a,e,i = 1.65, 0.46, 33 q = 0.8893
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 03 30 15 28 03.7 +45 09 40 0.5098 1.3151 117.7 42.3 21.8
...
2018 04 14 14 57 13.3 +48 49 42 0.3509 1.2113 118.7 46.6 20.9
...
2018 04 22 14 16 16.1 +49 48 27 0.2702 1.1569 118.0 50.1 20.3
...
2018 04 28 13 25 10.1 +48 42 45 0.2137 1.1173 116.1 54.0 19.9
2018 04 29 13 14 27.9 +48 13 03 0.2048 1.1108 115.6 54.8 19.8
2018 04 30 13 03 05.6 +47 35 29 0.1961 1.1044 115.0 55.8 19.7
...
2018 05 06 11 42 12.6 +39 46 26 0.1509 1.0667 108.7 63.6 19.3
...
2018 05 14 09 44 26.3 +14 04 47 0.1244 1.0197 90.7 82.3 19.4
...
2018 05 29 07 24 03.2 -26 57 46 0.2076 0.9463 65.5 103.0 21.2
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-H101
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