MPEC 2017-Q138: 2017 QL18
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M.P.E.C. 2017-Q138 Issued 2017 Aug. 28, 16:15 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 QL18
Observations:
K17Q18L C2017 08 10.47641 01 18 55.369-17 55 38.74 20.2 iLEQ138F51
K17Q18L C2017 08 10.47861 01 18 55.676-17 55 37.08 20.6 iLEQ138F51
K17Q18L C2017 08 10.50923 01 18 59.998-17 55 14.47 20.1 iLEQ138F51
K17Q18L C2017 08 10.54444 01 19 04.939-17 54 48.12 20.3 iLEQ138F51
K17Q18L C2017 08 10.57019 01 19 08.541-17 54 28.70 20.3 iLEQ138F51
K17Q18L C2017 08 10.59585 01 19 12.123-17 54 09.30 20.3 iLEQ138F51
K17Q18L C2017 08 14.48040 01 28 37.230-17 02 14.00 20.2 iLEQ138F51
K17Q18L C2017 08 14.49617 01 28 39.423-17 02 00.98 20.4 iLEQ138F51
K17Q18L C2017 08 14.51195 01 28 41.609-17 01 47.92 20.1 iLEQ138F51
K17Q18L C2017 08 14.53343 01 28 44.582-17 01 30.06 20.1 iLEQ138F51
K17Q18L* C2017 08 24.57521 01 52 17.982-14 19 33.94 20.2 wLEQ138F51
K17Q18L C2017 08 24.58820 01 52 19.654-14 19 19.64 20.2 wLEQ138F51
K17Q18L C2017 08 24.60116 01 52 21.323-14 19 05.25 20.1 wLEQ138F51
K17Q18L C2017 08 24.61410 01 52 22.988-14 18 50.93 20.2 wLEQ138F51
K17Q18L KC2017 08 25.37066901 54 06.34 -14 04 51.3 20.3 VuEQ138H21
K17Q18L KC2017 08 25.37757701 54 07.23 -14 04 43.4 20.3 VuEQ138H21
K17Q18L KC2017 08 25.38509801 54 08.19 -14 04 34.9 20.2 VuEQ138H21
K17Q18L KC2017 08 26.33701 01 56 17.09 -13 46 26.7 20.0 VqEQ138W25
K17Q18L KC2017 08 26.35464 01 56 19.37 -13 46 06.1 20.1 VqEQ138W25
K17Q18L KC2017 08 26.36273901 56 20.47 -13 45 57.2 20.2 VuEQ138H21
K17Q18L KC2017 08 26.36883401 56 21.26 -13 45 50.3 20.1 VuEQ138H21
K17Q18L KC2017 08 26.37492601 56 22.04 -13 45 43.2 20.2 VuEQ138H21
K17Q18L C2017 08 27.80788 01 59 33.77 -13 17 28.4 19.4 RqEQ138D29
K17Q18L C2017 08 27.82379 01 59 35.74 -13 17 08.6 19.5 RqEQ138D29
K17Q18L C2017 08 27.83970 01 59 37.80 -13 16 49.9 19.7 RqEQ138D29
K17Q18L C2017 08 28.04307 02 00 05.36 -13 12 47.7 19.4 VSEQ138033
K17Q18L C2017 08 28.04536 02 00 05.64 -13 12 45.2 19.1 VSEQ138033
K17Q18L C2017 08 28.04766 02 00 05.93 -13 12 42.3 19.1 VSEQ138033
K17Q18L C2017 08 28.12323 02 00 15.54 -13 11 11.6 19.8 VSEQ138033
K17Q18L C2017 08 28.12552 02 00 15.85 -13 11 08.6 19.8 VSEQ138033
K17Q18L C2017 08 28.12782 02 00 16.16 -13 11 05.4 19.9 VSEQ138033
K17Q18L C2017 08 28.13019 02 00 16.45 -13 11 02.4 19.5 VSEQ138033
K17Q18L C2017 08 28.44441 02 00 58.26 -13 04 35.6 20.9 VqEQ138I52
K17Q18L C2017 08 28.44848 02 00 58.77 -13 04 30.9 20.4 VqEQ138I52
K17Q18L C2017 08 28.45150 02 00 59.14 -13 04 27.0 20.8 VqEQ138I52
K17Q18L C2017 08 28.45235 02 00 59.20 -13 04 25.9 21.0 VqEQ138I52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers C. Hoegner,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
D29 Purple Mountain Observatory, XuYi Station. Observers H. B. Zhao, B. Li,
G. Zhaori, R. Q. Hong, L. F. Hu. Measurers H. B. Zhao, B. Li. H. Lu,
G. Zhaori. 1.04-m f/1.8 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman, T. Goggia. Measurers K. Chambers, S. Chastel, L. Denneau,
H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters,
R. Weryk. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. G. Matheny.
Measurers 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. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
W25 RMS Observatory, Cincinnati. Observer B. Rowe. 0.35-m Schmidt-Cassegrain
+ CCD.
Orbital elements:
2017 QL18 Earth MOID = 0.2679 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 353.41539 (2000.0) P Q
n 0.22497899 Peri. 346.58634 +0.95159771 -0.29082395
a 2.6773680 Node 30.88789 +0.29682595 +0.78571401
e 0.5287689 Incl. 11.16613 +0.07972546 +0.54596238
P 4.38 H 19.7 G 0.15 U 5
Residuals in seconds of arc
170810 F51 0.0 0.0 170824 F51 0.1- 0.1+ 170827 D29 0.2+ 0.4+
170810 F51 0.1- 0.0 170824 F51 0.1- 0.1+ 170828 033 0.3+ 0.2+
170810 F51 0.0 0.1- 170825 H21 0.3+ 0.4- 170828 033 0.1+ 0.0
170810 F51 0.0 0.0 170825 H21 0.3+ 0.2- 170828 033 0.1+ 0.1+
170810 F51 0.0 0.0 170825 H21 0.1+ 0.2- 170828 033 0.2- 0.6-
170810 F51 0.0 0.0 170826 W25 0.1- 0.0 170828 033 0.0 0.4-
170814 F51 0.1+ 0.0 170826 W25 0.1+ 0.2+ 170828 033 0.3+ 0.0
170814 F51 0.1+ 0.0 170826 H21 0.1+ 0.2- 170828 033 0.1+ 0.1+
170814 F51 0.0 0.0 170826 H21 0.2+ 0.3- 170828 I52 0.3+ 0.1-
170814 F51 0.1+ 0.0 170826 H21 0.2+ 0.2- 170828 I52 0.3+ 0.4-
170824 F51 0.1- 0.0 170827 D29 0.2- 0.3+ 170828 I52 0.2+ 0.2-
170824 F51 0.1- 0.0 170827 D29 0.6- 0.9+ 170828 I52 0.5- 0.1-
Ephemeris:
2017 QL18 a,e,i = 2.68, 0.53, 11 q = 1.2617
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 07 29 00 48 12.9 -20 10 51 0.6469 1.4526 120.2 37.2 21.1
...
2017 08 13 01 25 02.1 -17 22 30 0.5315 1.3813 123.8 37.6 20.5
...
2017 08 21 01 44 03.7 -15 22 06 0.4790 1.3487 125.7 37.5 20.3
...
2017 08 27 01 57 45.7 -13 33 18 0.4438 1.3271 127.3 37.3 20.1
2017 08 28 01 59 59.1 -13 13 23 0.4383 1.3238 127.6 37.2 20.0
2017 08 29 02 02 11.4 -12 52 57 0.4328 1.3205 127.9 37.1 20.0
...
2017 09 04 02 14 58.3 -10 38 13 0.4023 1.3027 129.7 36.6 19.8
...
2017 09 12 02 30 33.9 -07 03 39 0.3670 1.2836 132.6 35.3 19.5
...
2017 09 27 02 53 25.8 +01 35 22 0.3185 1.2636 140.2 30.5 19.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-Q138
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