MPEC 2018-H81 : 2018 HY1
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M.P.E.C. 2018-H81 Issued 2018 Apr. 24, 22:20 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 HY1
Observations:
K18H01Y* C2018 04 23.26233 13 23 30.72 -00 05 23.4 18.0 GUEH081G96
K18H01Y C2018 04 23.26747 13 23 36.57 -00 08 06.1 18.0 GUEH081G96
K18H01Y C2018 04 23.27261 13 23 42.43 -00 10 50.6 18.0 GUEH081G96
K18H01Y C2018 04 23.27776 13 23 48.29 -00 13 33.9 18.1 GUEH081G96
K18H01Y C2018 04 23.29827713 24 10.49 -00 24 35.8 17.7 GUEH081H01
K18H01Y C2018 04 23.30506513 24 18.26 -00 28 11.9 18.1 GUEH081H01
K18H01Y C2018 04 23.31342913 24 27.86 -00 32 38.5 18.0 GUEH081H01
K18H01Y C2018 04 23.31989613 24 35.29 -00 36 04.6 17.7 GUEH081H01
K18H01Y C2018 04 23.41037 13 26 21.52 -01 24 01.8 17.4 GUEH081I52
K18H01Y C2018 04 23.41050 13 26 21.66 -01 24 05.3 17.5 GUEH081I52
K18H01Y C2018 04 23.41062 13 26 21.80 -01 24 09.5 17.8 GUEH081I52
K18H01Y C2018 04 23.41075 13 26 21.96 -01 24 13.9 17.6 GUEH081I52
K18H01Y C2018 04 23.45654 13 27 16.89 -01 48 34.3 17.8 GUEH081G96
K18H01Y C2018 04 23.45663 13 27 17.00 -01 48 37.2 17.8 GUEH081G96
K18H01Y C2018 04 23.45673 13 27 17.11 -01 48 40.4 17.8 GUEH081G96
K18H01Y C2018 04 23.45682 13 27 17.21 -01 48 43.2 18.0 GUEH081G96
K18H01Y C2018 04 23.45683 13 27 17.25 -01 48 43.7 17.4 GUEH081I52
K18H01Y C2018 04 23.45696 13 27 17.40 -01 48 47.7 17.5 GUEH081I52
K18H01Y C2018 04 23.45715 13 27 17.63 -01 48 53.7 17.8 GUEH081I52
K18H01Y C2018 04 23.45727 13 27 17.77 -01 48 57.6 17.4 GUEH081I52
K18H01Y `C2018 04 23.47336 13 28 07.08 -01 51 18.2 18.0 VUEH081Q62
K18H01Y `C2018 04 23.48223 13 28 17.39 -01 56 02.7 18.6 VUEH081Q62
K18H01Y `C2018 04 23.49109 13 28 27.68 -02 00 46.5 18.6 VUEH081Q62
K18H01Y `C2018 04 23.55686 13 29 43.48 -02 35 52.8 18.1 VUEH081Q62
K18H01Y `C2018 04 23.55973 13 29 46.75 -02 37 25.1 18.1 VUEH081Q62
K18H01Y `C2018 04 23.56706 13 29 55.17 -02 41 20.1 18.0 VUEH081Q62
K18H01Y `C2018 04 23.57016 13 29 58.74 -02 42 59.4 17.9 VUEH081Q62
K18H01Y `C2018 04 23.57365 13 30 02.73 -02 44 50.7 18.1 VUEH081Q62
K18H01Y KC2018 04 23.94866 13 38 05.94 -06 12 14.8 17.5 RqEH081160
K18H01Y KC2018 04 23.94958 13 38 07.01 -06 12 44.3 17.4 RqEH081160
K18H01Y KC2018 04 23.95050 13 38 08.08 -06 13 14.3 17.8 RqEH081160
K18H01Y C2018 04 24.18659 13 43 25.85 -08 17 42.7 17.5 GUEH081I52
K18H01Y C2018 04 24.18672 13 43 25.99 -08 17 46.7 17.6 GUEH081I52
K18H01Y C2018 04 24.18684 13 43 26.14 -08 17 50.5 17.5 GUEH081I52
K18H01Y C2018 04 24.18697 13 43 26.30 -08 17 54.8 17.5 GUEH081I52
K18H01Y KC2018 04 24.48656 13 49 52.85 -10 49 12.7 17.9 VqEH081E23
K18H01Y KC2018 04 24.49073 13 49 57.82 -10 51 23.0 18.2 VqEH081E23
K18H01Y KC2018 04 24.49490 13 50 02.74 -10 53 34.2 17.6 VqEH081E23
K18H01Y KC2018 04 24.85797 13 57 54.95 -14 07 58.2 17.5 RoEH081K88
K18H01Y KC2018 04 24.86140 13 57 59.10 -14 09 43.3 17.4 RoEH081K88
K18H01Y KC2018 04 24.87564 13 58 19.44 -14 16 48.4 UEH081587
K18H01Y KC2018 04 24.87818 13 58 22.53 -14 18 05.8 UEH081587
K18H01Y KC2018 04 24.88072 13 58 25.64 -14 19 23.2 17.4 GUEH081587
Observer details:
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
587 Sormano. Observers A. Fumagalli, F. Manca, P. Sicoli, A. Testa. Measurer
P. Sicoli. 0.5-m f/6.8 reflector + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD.
G96 Mt. Lemmon Survey. Observer J. A. Johnson. 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 B. M. Africano.
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.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer S. M. Tilley. 0.50-m
f/6.8 reflector + CCD + f/4.5 focal reducer.
Orbital elements:
2018 HY1 Earth MOID = 0.0240 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 351.65323 (2000.0) P Q
n 0.34195178 Peri. 170.55484 -0.90885446 +0.41078254
a 2.0253160 Node 33.99131 -0.39065007 -0.77743615
e 0.4935204 Incl. 7.44043 -0.14620562 -0.47628849
P 2.88 H 25.3 G 0.15 U 6
Residuals in seconds of arc
180423 G96 0.1+ 0.2- 180423 G96 0.3- 0.1+ 180423 160 0.0 0.8-
180423 G96 0.0 0.7+ 180423 I52 0.2+ 0.0 180424 I52 0.1- 0.1+
180423 G96 0.1+ 0.2- 180423 I52 0.0 0.1+ 180424 I52 0.4- 0.2+
180423 G96 0.1- 0.4+ 180423 I52 0.0 0.2+ 180424 I52 0.3- 0.2+
180423 H01 0.0 0.1- 180423 I52 0.1- 0.1+ 180424 I52 0.2- 0.1+
180423 H01 0.1- 0.0 180423 Q62 0.0 0.3+ 180424 E23 0.0 0.4-
180423 H01 0.0 0.1- 180423 Q62 0.1- 0.2- 180424 E23 0.1+ 0.6+
180423 H01 0.1+ 0.2- 180423 Q62 0.1+ 0.3- 180424 E23 0.5- 0.7+
180423 I52 0.0 0.2- 180423 Q62 0.5+ 0.1+ 180424 K88 0.0 0.1+
180423 I52 0.2- 0.4+ 180423 Q62 0.1+ 0.2- 180424 K88 0.2- 0.1+
180423 I52 0.2- 0.0 180423 Q62 0.0 0.4- 180424 587 0.1+ 0.6-
180423 I52 0.1- 0.2- 180423 Q62 0.1+ 0.5- 180424 587 0.1+ 0.2-
180423 G96 0.0 0.1+ 180423 Q62 0.2- 0.0 180424 587 0.4+ 0.2+
180423 G96 0.1+ 0.1+ 180423 160 0.5+ 0.1-
180423 G96 0.1- 0.1+ 180423 160 0.3+ 0.2-
Ephemeris:
2018 HY1 a,e,i = 2.03, 0.49, 7 q = 1.0258
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 03 25 09 37 58.8 +53 56 30 0.1295 1.0597 115.7 58.0 23.1
...
2018 04 09 10 22 43.4 +49 54 53 0.06909 1.0296 112.2 64.2 21.8
...
2018 04 17 11 34 31.8 +37 29 55 0.03856 1.0258 124.0 54.2 20.3
...
2018 04 23 13 17 57.3 +02 16 25 0.02462 1.0288 161.8 17.8 18.2
2018 04 24 13 39 11.0 -06 34 33 0.02442 1.0297 171.1 8.6 17.9
2018 04 25 14 00 51.7 -15 14 10 0.02501 1.0308 177.0 2.9 17.7
...
2018 05 01 15 58 57.9 -46 19 39 0.04046 1.0403 143.7 35.0 19.9
...
2018 05 09 17 26 32.4 -55 21 49 0.07223 1.0600 133.1 44.1 21.4
...
2018 05 24 18 13 32.9 -56 54 58 0.1379 1.1165 136.4 38.7 22.8
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-H81
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