MPEC 2017-V77 : 2017 QH18
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 2017-V76
Read MPEC 2017-V78
M.P.E.C. 2017-V77 Issued 2017 Nov. 15, 11:36 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
2017 QH18
Revision to MPEC 2017-Q135
Additional Observations:
K17Q18H C2002 09 08.48830 00 29 46.48 -12 33 34.8 19.9 RcEV077608
K17Q18H C2002 09 08.49858 00 29 45.84 -12 34 11.5 20.0 RcEV077608
K17Q18H C2002 09 08.50933 00 29 45.17 -12 34 49.6 19.7 RcEV077608
K17Q18H C2002 09 10.35014 00 27 53.63 -14 21 49.8 19.9 RcEV077644
K17Q18H C2002 09 10.37144 00 27 52.20 -14 23 04.0 19.7 RcEV077644
K17Q18H C2002 09 10.39292 00 27 50.76 -14 24 17.0 19.7 RcEV077644
Observer details:
608 Haleakala-NEAT/MSSS. Observers R. Bambery, E. Helin, S. Pravdo, M. Hicks,
K. Lawrence, P. Kervin, J. Africano. Measurer R. Matson. 1.2-m reflector
+ CCD.
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
K. Kuluhiwa, M. Hicks, R. Thicksten. Measurer R. Matson. 1.2-m Schmidt
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
020908 608 0.17- 0.03+ 020910 644 0.16- 0.03+ MPO423866 -0.00073 day
Orbital elements:
2017 QH18 Earth MOID = 0.3968 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 45.23992 (2000.0) P Q
n 0.39439120 Peri. 102.17446 -0.00976416 +0.98643104
a 1.8415545 Node 164.19349 -0.97591999 -0.04511636
e 0.3679226 Incl. 36.98878 +0.21791016 -0.15785538
P 2.50 H 19.9 G 0.15 U 3
Residuals in seconds of arc
020908 608 0.7- 0.6+ 170825 568 0.0 0.2- 170828 H01 0.0 0.2-
020908 608 0.2- 0.3+ 170825 568 0.0 0.2- 170828 I52 0.1+ 0.5+
020908 608 0.3+ 0.2+ 170825 568 0.0 0.2- 170828 I52 0.2+ 0.4-
020910 644 0.1+ 0.5- 170825 L01 0.8+ 1.4+ 170828 I52 0.6- 1.2-
020910 644 (0.2+ 1.6-) 170825 L01 0.1+ 0.2+ 170828 I52 0.4- 0.3-
020910 644 0.3+ 1.0- 170826 104 0.2+ 0.5+ 170914 807 0.1- 0.6+
170824 F51 0.1- 0.2+ 170826 104 0.5- 0.1- 170914 807 0.0 1.0+
170824 F51 0.1- 0.2+ 170826 104 0.3+ 0.0 170914 807 0.6- 0.9+
170824 F51 0.2- 0.2+ 170826 H21 0.3+ 0.2- 170914 F51 0.0 0.1-
170824 F51 0.1- 0.2+ 170826 H21 0.5+ 0.2- 170914 F51 0.1- 0.1+
170825 033 0.0 0.0 170826 H21 0.1+ 0.2- 170914 F51 0.2+ 0.0
170825 033 0.1+ 0.7+ 170826 033 0.2- 0.4- 170922 807 0.4+ 0.2-
170825 033 0.3- 0.1- 170826 033 0.1- 1.0- 170922 807 0.2+ 0.1+
170825 033 0.4+ 0.1- 170826 033 0.4- 0.5- 170922 807 0.1- 0.6-
170825 033 0.3+ 0.2- 170828 033 0.2- 1.1- 171021 807 0.1- 0.2+
170825 033 0.3+ 0.1+ 170828 033 0.1- 0.3- 171021 807 0.6- 0.0
170825 033 0.7+ 0.2- 170828 033 0.4+ 0.4- 171021 807 0.1+ 0.1-
170825 H21 0.2+ 0.2- 170828 H01 0.1+ 0.1- 171113 807 0.3+ 0.2-
170825 H21 0.2+ 0.0 170828 H01 0.1+ 0.1- 171113 807 0.1+ 0.2-
170825 H21 0.0 0.4- 170828 H01 0.1+ 0.1- 171113 807 0.2- 0.1+
Ephemeris:
2017 QH18 a,e,i = 1.84, 0.37, 37 q = 1.1640
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 10 16 00 01 38.8 -34 15 18 0.9187 1.7556 132.8 24.6 22.1
...
2017 10 31 23 57 50.3 -35 36 23 1.1163 1.8273 120.0 28.1 22.7
...
2017 11 08 23 59 08.0 -35 26 18 1.2290 1.8645 113.8 29.1 23.0
...
2017 11 14 00 01 25.4 -35 01 56 1.3157 1.8919 109.5 29.5 23.2
2017 11 15 00 01 54.4 -34 56 42 1.3303 1.8964 108.8 29.6 23.2
2017 11 16 00 02 25.0 -34 51 11 1.3449 1.9009 108.1 29.6 23.2
...
2017 11 22 00 06 01.7 -34 12 17 1.4333 1.9277 104.0 29.8 23.4
...
2017 11 30 00 12 09.5 -33 07 48 1.5521 1.9626 98.8 29.8 23.6
...
2017 12 15 00 26 51.5 -30 39 48 1.7751 2.0255 89.7 29.1 24.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-V77
Read MPEC 2017-V76
Read MPEC 2017-V78
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)