MPEC 2018-H89 : 2018 HH2
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2018-H88
Read MPEC 2018-H90
M.P.E.C. 2018-H89 Issued 2018 Apr. 26, 15:13 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 HH2
Observations:
K18H02H* C2018 04 23.39008 16 08 58.34 +33 45 45.4 19.1 GUEH089703
K18H02H C2018 04 23.39541 16 08 54.73 +33 44 28.5 18.7 GUEH089703
K18H02H C2018 04 23.40074 16 08 51.27 +33 43 12.5 18.4 GUEH089703
K18H02H C2018 04 23.40606 16 08 47.80 +33 41 56.9 UEH089703
K18H02H C2018 04 23.43887616 08 26.08 +33 33 57.7 18.5 GUEH089H01
K18H02H C2018 04 23.44175016 08 24.22 +33 33 16.0 18.6 GUEH089H01
K18H02H C2018 04 23.45088416 08 18.31 +33 31 03.0 18.9 GUEH089H01
K18H02H C2018 04 23.45935916 08 12.84 +33 28 59.7 19.0 GUEH089H01
K18H02H C2018 04 23.46221 16 08 11.44 +33 28 23.4 18.8 GUEH089I52
K18H02H C2018 04 23.46239 16 08 11.38 +33 28 19.0 18.5 GUEH089I52
K18H02H C2018 04 23.46258 16 08 11.31 +33 28 17.5 18.6 GUEH089I52
K18H02H C2018 04 23.47841 16 08 00.96 +33 24 26.3 19.2 GUEH089I52
K18H02H C2018 04 23.47859 16 08 00.83 +33 24 23.3 19.0 GUEH089I52
K18H02H C2018 04 23.47878 16 08 00.69 +33 24 21.1 19.2 GUEH089I52
K18H02H C2018 04 23.47897 16 08 00.58 +33 24 18.5 18.8 GUEH089I52
K18H02H C2018 04 24.33193 15 59 39.43 +29 50 33.0 18.8 GUEH089I52
K18H02H C2018 04 24.33235 15 59 39.17 +29 50 26.2 18.8 GUEH089I52
K18H02H C2018 04 24.33276 15 59 38.90 +29 50 19.8 18.9 GUEH089I52
K18H02H C2018 04 24.33317 15 59 38.64 +29 50 13.3 18.7 GUEH089I52
K18H02H KC2018 04 24.33808 15 59 33.26 +29 48 44.6 18.5 RqEH089734
K18H02H KC2018 04 24.34067 15 59 31.59 +29 48 04.0 18.4 RqEH089734
K18H02H KC2018 04 24.34328 15 59 29.94 +29 47 23.6 18.6 RqEH089734
K18H02H KC2018 04 24.34587 15 59 28.24 +29 46 42.4 19.0 RqEH089734
K18H02H 9C2018 04 24.38798 15 59 04.40 +29 35 46.7 19.0 VUEH089U69
K18H02H 9C2018 04 24.39436 15 59 00.30 +29 34 06.9 19.5 VUEH089U69
K18H02H 9C2018 04 24.40059 15 58 56.28 +29 32 29.3 18.3 VUEH089U69
K18H02H C2018 04 24.43180 15 58 34.89 +29 24 26.4 18.3 GUEH089I52
K18H02H C2018 04 24.43221 15 58 34.63 +29 24 19.8 18.2 GUEH089I52
K18H02H C2018 04 24.43262 15 58 34.36 +29 24 13.2 18.2 GUEH089I52
K18H02H C2018 04 24.43304 15 58 34.09 +29 24 06.7 17.9 GUEH089I52
K18H02H KC2018 04 24.87207 15 54 22.27 +27 25 53.6 18.4 RoEH089K88
K18H02H KC2018 04 24.87608 15 54 19.83 +27 24 49.3 18.8 RoEH089K88
K18H02H KC2018 04 24.88008 15 54 17.35 +27 23 44.5 18.5 RoEH089K88
K18H02H KC2018 04 24.89533 15 54 08.92 +27 19 35.8 19.1 GUEH089587
K18H02H KC2018 04 24.89857 15 54 06.92 +27 18 43.3 UEH089587
K18H02H KC2018 04 24.90174 15 54 04.97 +27 17 52.3 UEH089587
K18H02H KC2018 04 24.91245 15 53 58.44 +27 15 04.1 18.9 RqEH089160
K18H02H KC2018 04 24.91521 15 53 56.67 +27 14 19.4 18.4 RqEH089160
K18H02H KC2018 04 24.91659 15 53 55.82 +27 13 57.2 18.8 RqEH089160
K18H02H KC2018 04 24.91797 15 53 54.94 +27 13 35.1 18.2 RqEH089160
K18H02H KC2018 04 24.92074 15 53 53.24 +27 12 50.3 18.8 RqEH089160
K18H02H KC2018 04 24.92937 15 53 47.86 +27 10 25.0 19.4 GUEH089K38
K18H02H KC2018 04 24.93528 15 53 44.20 +27 08 49.2 18.7 GUEH089204
K18H02H KC2018 04 24.93648 15 53 42.99 +27 08 33.3 19.0 VSEH089L01
K18H02H KC2018 04 24.93850 15 53 41.74 +27 08 00.1 19.3 VSEH089L01
K18H02H KC2018 04 24.94054 15 53 40.48 +27 07 26.2 19.1 VSEH089L01
K18H02H KC2018 04 24.94144 15 53 40.37 +27 07 09.1 UEH089204
K18H02H KC2018 04 24.94200 15 53 39.98 +27 07 00.2 19.1 GUEH089K38
K18H02H KC2018 04 24.94257 15 53 39.17 +27 06 53.8 19.2 VSEH089L01
K18H02H KC2018 04 24.94759 15 53 36.53 +27 05 29.0 UEH089204
K18H02H KC2018 04 24.95779 15 53 30.09 +27 02 43.0 19.2 GUEH089K38
K18H02H KC2018 04 24.96198 15 53 27.23 +27 01 39.4 19.1 RUEH089K65
K18H02H KC2018 04 24.97082 15 53 21.67 +26 59 15.1 18.6 RUEH089K65
K18H02H KC2018 04 24.97232 15 53 20.50 +26 58 47.0 19.2 VqEH089595
K18H02H KC2018 04 24.97805 15 53 16.89 +26 57 13.4 18.8 VqEH089595
K18H02H KC2018 04 24.98010 15 53 15.81 +26 56 43.6 18.2 RUEH089K65
K18H02H KC2018 04 24.98965 15 53 09.78 +26 54 07.0 18.6 RUEH089K65
K18H02H KC2018 04 24.99629 15 53 05.57 +26 52 17.6 19.1 RUEH089K65
K18H02H KC2018 04 24.99889 15 53 04.25 +26 51 31.9 19.0 GUEH089203
K18H02H KC2018 04 25.01150 15 52 56.30 +26 48 04.8 18.8 GUEH089203
K18H02H KC2018 04 25.33387715 49 44.33 +25 18 34.3 19.0 VuEH089H21
K18H02H KC2018 04 25.33608815 49 42.93 +25 17 57.0 19.0 VuEH089H21
K18H02H KC2018 04 25.33922315 49 40.94 +25 17 03.7 19.2 VuEH089H21
K18H02H C2018 04 25.37851 15 49 19.08 +25 06 14.8 18.6 GUEH089I52
K18H02H C2018 04 25.37864 15 49 18.97 +25 06 14.0 18.4 GUEH089I52
K18H02H C2018 04 25.37876 15 49 18.87 +25 06 11.6 17.9 GUEH089I52
K18H02H C2018 04 25.37889 15 49 18.82 +25 06 09.5 18.8 GUEH089I52
K18H02H C2018 04 25.40096 15 49 04.72 +24 59 54.7 19.0 GUEH089G96
K18H02H C2018 04 25.40489 15 49 02.13 +24 58 45.7 19.2 GUEH089G96
K18H02H C2018 04 25.40888 15 48 59.49 +24 57 35.2 20.4 GUEH089G96
K18H02H C2018 04 25.71854 15 45 59.28 +23 29 01.1 18.9 RrEH089P93
K18H02H C2018 04 25.72015 15 45 58.25 +23 28 33.7 18.9 RrEH089P93
K18H02H C2018 04 25.72177 15 45 57.20 +23 28 04.9 18.6 RrEH089P93
K18H02H C2018 04 25.72338 15 45 56.22 +23 27 36.9 18.8 RrEH089P93
K18H02H KC2018 04 25.85729 15 44 45.16 +22 48 01.0 18.7 RoEH089K88
K18H02H KC2018 04 25.86129 15 44 42.76 +22 46 52.7 18.1 RoEH089K88
K18H02H KC2018 04 25.86530 15 44 40.36 +22 45 42.6 18.3 RoEH089K88
K18H02H KC2018 04 25.99515215 43 22.29 +22 07 45.6 19.2 GUEH089Z80
K18H02H KC2018 04 26.00362315 43 17.04 +22 05 16.0 18.8 GUEH089Z80
K18H02H KC2018 04 26.00845415 43 14.06 +22 03 52.7 18.5 GUEH089Z80
K18H02H KC2018 04 26.24698 15 40 59.85 +20 53 49.7 oEH089691
K18H02H KC2018 04 26.25434 15 40 55.34 +20 51 39.9 oEH089691
K18H02H KC2018 04 26.26170 15 40 50.75 +20 49 29.7 oEH089691
K18H02H C2018 04 26.34654 15 39 57.68 +20 24 16.3 18.1 GUEH089I52
K18H02H C2018 04 26.34696 15 39 57.41 +20 24 08.9 17.9 GUEH089I52
K18H02H C2018 04 26.34737 15 39 57.13 +20 24 01.4 17.9 GUEH089I52
K18H02H C2018 04 26.34779 15 39 56.86 +20 23 53.8 18.1 GUEH089I52
K18H02H C2018 04 26.36503 15 39 45.98 +20 18 43.7 UEH089703
K18H02H C2018 04 26.37084 15 39 42.31 +20 17 00.0 19.2 GUEH089703
K18H02H C2018 04 26.37656 15 39 38.75 +20 15 17.1 18.8 GUEH089703
K18H02H C2018 04 26.38218 15 39 35.23 +20 13 35.8 18.6 GUEH089703
Observer details:
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.28-m f/6.8 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
587 Sormano. Observers A. Fumagalli, F. Manca, P. Sicoli, A. Testa. Measurer
P. Sicoli. 0.5-m f/6.8 reflector + CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.61-m f/4.0 reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer A. F. Tubbiolo. 0.9-m f/3
reflector + CCD.
703 Catalina Sky Survey. Observers B. M. Africano, 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. 0.68-m Schmidt + 10K CCD.
734 Farpoint Observatory. Observer G. Hug. 0.69-m 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.61-m f/4.5
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers B. M. Africano,
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.
K38 M57 Observatory, Saltrio. Observer G. Baj. 0.30-m f/5.5 Ritchey-Chretien
+ CCD.
K65 Cesena. Observer V. Tinella. 0.40-m f/7 Schmidt-Cassegrain + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
P93 Space Tracking and Communications Center, JAXA. Observers S. Urakawa,
T. Nimura. 1.0-m f/3.0 reflector + CCD.
U69 iTelescope SRO Observatory, Auberry. Observer S. M. Tilley. 0.61-m f/6.5
reflector + CCD.
Z80 Northolt Branch Observatory. Observer G. Wells. Measurer D. Bamberger.
0.25-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2018 HH2 Earth MOID = 0.0620 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 13.39706 (2000.0) P Q
n 0.70553024 Peri. 115.43576 -0.89620367 -0.38701664
a 1.2496612 Node 42.74172 +0.19436240 -0.78196666
e 0.2284366 Incl. 18.63602 +0.39880100 -0.48861668
P 1.40 H 23.1 G 0.15 U 7
Residuals in seconds of arc
180423 703 0.2+ 0.2+ 180424 K88 0.6+ 0.5+ 180425 H21 0.0 0.0
180423 703 1.4- 0.4- 180424 K88 0.4+ 0.2+ 180425 I52 0.5+ 0.8-
180423 703 1.2- 0.1+ 180424 587 0.2+ 0.1- 180425 I52 0.1+ 0.6+
180423 703 1.2- 0.9+ 180424 587 0.2+ 0.3- 180425 I52 0.2- 0.2+
180423 H01 0.1+ 0.1+ 180424 587 0.2+ 0.1- 180425 I52 0.3+ 0.3+
180423 H01 0.1+ 0.1+ 180424 160 0.7+ 0.1- 180425 G96 0.2+ 0.5+
180423 H01 0.1+ 0.0 180424 160 0.0 0.1- 180425 G96 (0.9- 1.6-)
180423 H01 0.2+ 0.2+ 180424 160 0.1+ 0.0 180425 G96 (2.2- 4.1-)
180423 I52 0.5+ 0.6+ 180424 160 0.2- 0.2+ 180425 P93 0.2+ 0.4+
180423 I52 1.2+ 1.2- 180424 160 0.2+ 0.3+ 180425 P93 0.1+ 0.9+
180423 I52 (1.9+ 0.1+) 180424 K38 0.8- 0.5- 180425 P93 0.2- 0.3+
180423 I52 0.3+ 0.2+ 180424 204 0.1+ 0.1+ 180425 P93 0.3+ 0.3+
180423 I52 0.1+ 0.1- 180424 L01 0.2- 0.3+ 180425 K88 0.3- 0.3-
180423 I52 0.1- 0.4+ 180424 L01 0.0 0.1- 180425 K88 0.1+ 0.6+
180423 I52 0.1+ 0.6+ 180424 L01 0.2+ 0.8- 180425 K88 0.6+ 0.1-
180424 I52 0.1+ 0.3+ 180424 204 0.2+ 0.1+ 180425 Z80 0.1+ 0.2+
180424 I52 0.2+ 0.0 180424 K38 0.9- 0.3- 180426 Z80 0.4- 0.7-
180424 I52 0.1+ 0.0 180424 L01 0.3- 0.2- 180426 Z80 0.4- 0.8+
180424 I52 0.2+ 0.1- 180424 204 0.3+ 0.0 180426 691 0.1- 0.4-
180424 734 0.3- 0.4- 180424 K38 1.1- 0.6- 180426 691 0.2+ 0.0
180424 734 0.3- 0.6- 180424 K65 0.1+ 0.2- 180426 691 0.4- 0.2+
180424 734 0.0 0.2- 180424 K65 0.2+ 0.1- 180426 I52 0.5+ 0.1-
180424 734 0.4- 0.9- 180424 595 0.3+ 0.3- 180426 I52 0.4+ 0.1+
180424 U69 0.2- 0.3- 180424 595 0.3+ 0.1- 180426 I52 0.1+ 0.1-
180424 U69 0.1- 0.1- 180424 K65 0.2+ 0.1+ 180426 I52 0.0 0.2-
180424 U69 0.2- 0.0 180424 K65 0.3+ 0.0 180426 703 0.5- 0.7-
180424 I52 0.0 0.1+ 180424 K65 0.2+ 0.5- 180426 703 0.8- 0.1+
180424 I52 0.0 0.0 180424 203 0.0 0.2+ 180426 703 0.3- 0.2+
180424 I52 0.0 0.1- 180425 203 0.2+ 0.3+ 180426 703 0.1- 0.1+
180424 I52 0.0 0.0 180425 H21 0.0 0.0
180424 K88 0.1+ 0.1+ 180425 H21 0.0 0.1+
Ephemeris:
2018 HH2 a,e,i = 1.25, 0.23, 19 q = 0.9642
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 03 27 19 41 04.7 +66 25 50 0.1980 0.9829 80.0 88.5 22.7
...
2018 04 11 18 04 57.6 +59 48 48 0.1232 1.0134 91.8 81.2 21.4
...
2018 04 19 16 52 42.7 +47 37 22 0.08556 1.0343 108.3 67.2 20.2
...
2018 04 25 15 53 02.0 +26 52 11 0.06593 1.0518 132.8 44.6 19.0
2018 04 26 15 43 17.4 +22 07 44 0.06415 1.0548 138.1 39.5 18.8
2018 04 27 15 33 43.1 +17 06 28 0.06296 1.0578 143.8 34.2 18.6
...
2018 05 03 14 41 40.2 -13 06 03 0.06895 1.0768 177.5 2.3 17.7
...
2018 05 11 13 51 01.7 -36 48 06 0.1030 1.1035 154.2 23.5 19.5
...
2018 05 26 13 08 22.8 -50 15 38 0.1941 1.1563 134.0 39.0 21.4
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-H89
Read MPEC 2018-H88
Read MPEC 2018-H90
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)