MPEC 2017-X108: 2017 XH2
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M.P.E.C. 2017-X108 Issued 2017 Dec. 14, 15:11 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 XH2
Observations:
K17X02H* C2017 12 09.35027 07 01 26.78 +36 01 14.0 19.2 GUEX108G96
K17X02H C2017 12 09.35547 07 01 29.06 +36 03 42.2 19.0 GUEX108G96
K17X02H C2017 12 09.36069 07 01 31.37 +36 06 10.2 19.3 GUEX108G96
K17X02H C2017 12 09.37516107 01 37.27 +36 12 59.4 19.1 GUEX108H01
K17X02H C2017 12 09.37967507 01 39.26 +36 15 07.7 19.0 GUEX108H01
K17X02H C2017 12 09.39126907 01 44.39 +36 20 36.9 19.1 GUEX108H01
K17X02H C2017 12 09.39778507 01 47.29 +36 23 41.7 18.9 GUEX108H01
K17X02H C2017 12 09.41127 07 01 53.72 +36 30 07.8 19.4 GUEX108I52
K17X02H C2017 12 09.41146 07 01 53.76 +36 30 12.6 19.3 GUEX108I52
K17X02H C2017 12 09.41164 07 01 53.91 +36 30 18.2 18.9 GUEX108I52
K17X02H C2017 12 09.41182 07 01 53.93 +36 30 23.9 19.2 GUEX108I52
K17X02H C2017 12 09.53048 07 02 53.145+37 26 54.66 19.5 iUEX108F51
K17X02H C2017 12 09.54344 07 02 59.010+37 33 01.11 UEX108F51
K17X02H C2017 12 09.55590 07 03 04.637+37 38 54.69 19.2 iUEX108F51
K17X02H C2017 12 09.56855 07 03 10.398+37 44 51.98 19.0 iUEX108F51
K17X02H KC2017 12 09.92378 07 06 24.10 +40 31 14.8 19.5 RUEX108104
K17X02H KC2017 12 09.92674 07 06 25.67 +40 32 38.7 19.5 RUEX108104
K17X02H KC2017 12 09.92981 07 06 27.22 +40 34 05.8 19.3 RUEX108104
K17X02H KC2017 12 09.93282 07 06 28.78 +40 35 30.9 19.5 RUEX108104
K17X02H KC2017 12 09.99903 07 07 02.20 +41 06 37.9 19.4 VqEX108595
K17X02H KC2017 12 10.02049 07 07 13.15 +41 16 41.7 qEX108595
K17X02H KC2017 12 10.02512 07 07 15.60 +41 18 51.4 19.1 VqEX108595
K17X02H KC2017 12 10.32166 07 10 05.12 +43 36 48.8 18.7 RqEX108H36
K17X02H KC2017 12 10.32550 07 10 07.09 +43 38 33.3 19.3 RqEX108H36
K17X02H KC2017 12 10.32935 07 10 09.07 +43 40 22.0 19.1 RqEX108H36
K17X02H KC2017 12 10.33096807 10 08.97 +43 41 03.8 19.8 VuEX108H21
K17X02H KC2017 12 10.33242707 10 09.75 +43 41 44.2 19.7 VuEX108H21
K17X02H KC2017 12 10.33404307 10 10.65 +43 42 28.8 19.6 VuEX108H21
K17X02H KC2017 12 10.33566107 10 11.53 +43 43 13.5 19.7 VuEX108H21
K17X02H KC2017 12 10.33727807 10 12.40 +43 43 58.2 19.6 VuEX108H21
K17X02H KC2017 12 10.33889507 10 13.28 +43 44 42.9 19.5 VuEX108H21
K17X02H KC2017 12 11.33455107 21 06.75 +51 09 51.6 20.1 VuEX108H21
K17X02H KC2017 12 11.33612307 21 07.82 +51 10 32.4 20.0 VuEX108H21
K17X02H KC2017 12 11.33774007 21 08.91 +51 11 13.9 19.8 VuEX108H21
K17X02H KC2017 12 11.33935507 21 10.00 +51 11 55.6 19.7 VuEX108H21
K17X02H KC2017 12 11.34161807 21 11.53 +51 12 54.0 19.7 VuEX108H21
K17X02H KC2017 12 12.03596807 30 25.48 +56 01 29.8 UEX108J95
K17X02H KC2017 12 12.03998007 30 28.77 +56 03 06.8 UEX108J95
K17X02H KC2017 12 12.04495007 30 32.84 +56 05 06.5 UEX108J95
K17X02H KC2017 12 12.04875807 30 35.95 +56 06 38.7 19.6 GUEX108J95
K17X02H C2017 12 12.37389 07 35 27.47 +58 15 01.1 19.6 GUEX108I52
K17X02H C2017 12 12.37565 07 35 29.03 +58 15 41.8 20.6 GUEX108I52
K17X02H C2017 12 12.37794 07 35 31.09 +58 16 35.1 19.6 GUEX108I52
K17X02H C2017 12 12.42366 07 36 11.01 +58 34 11.0 19.4 RoEX108926
K17X02H C2017 12 12.42601 07 36 13.00 +58 35 05.4 18.3 RoEX108926
K17X02H C2017 12 12.42836 07 36 15.12 +58 35 57.7 19.5 RoEX108926
K17X02H C2017 12 13.28550 07 51 33.92 +63 45 34.7 20.2 RoEX108926
K17X02H C2017 12 13.28822 07 51 37.05 +63 46 30.7 20.2 RoEX108926
K17X02H C2017 12 13.29093 07 51 40.07 +63 47 27.3 20.0 RoEX108926
K17X02H C2017 12 13.42909 07 54 17.73 +64 34 07.2 19.8 GUEX108I52
K17X02H C2017 12 13.43018 07 54 18.98 +64 34 28.8 19.8 GUEX108I52
K17X02H C2017 12 13.43073 07 54 19.65 +64 34 39.9 19.8 GUEX108I52
K17X02H C2017 12 14.30910 08 14 58.87 +69 05 41.7 20.1 GUEX108I52
K17X02H C2017 12 14.31070 08 15 01.26 +69 06 09.5 20.4 GUEX108I52
K17X02H C2017 12 14.31166 08 15 02.59 +69 06 26.2 19.6 GUEX108I52
K17X02H C2017 12 14.31262 08 15 04.23 +69 06 42.6 19.9 GUEX108I52
K17X02H C2017 12 14.47052 08 19 06.99 +69 51 17.7 20.6 RoEX108926
K17X02H C2017 12 14.47351 08 19 11.73 +69 52 06.9 20.2 RoEX108926
K17X02H C2017 12 14.47649 08 19 16.42 +69 52 55.6 20.6 RoEX108926
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m f/4 reflector + CCD.
595 Farra d'Isonzo. Observers E. Pettarin, F. Piani. Measurer E. Pettarin.
0.61-m f/4.0 reflector + CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. 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.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. 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.
1.5-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.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers R. G. Matheny,
D. C. Fuls, E. J. Christensen. 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.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2017 XH2 Earth MOID = 0.0754 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 329.09598 (2000.0) P Q
n 0.27871230 Peri. 18.49132 -0.05531111 -0.84906830
a 2.3211255 Node 77.47674 +0.83469522 -0.32807334
e 0.5513780 Incl. 32.56010 +0.54792753 +0.41406632
P 3.54 H 23.6 G 0.15 U 5
Residuals in seconds of arc
171209 G96 0.1- 0.3+ 171210 595 0.3- 0.8+ 171212 I52 0.6- 0.4-
171209 G96 0.1- 0.3+ 171210 595 0.6+ 0.5+ 171212 I52 0.3- 0.5-
171209 G96 0.0 0.3- 171210 H36 1.3+ 1.9+ 171212 I52 0.2+ 0.3-
171209 H01 0.1+ 0.1- 171210 H36 0.2+ 0.1- 171212 926 0.2- 0.3+
171209 H01 0.1+ 0.1- 171210 H36 0.9- 1.9+ 171212 926 0.8- 0.9+
171209 H01 0.1+ 0.1- 171210 H21 0.2- 0.0 171212 926 0.4- 0.6-
171209 H01 0.2+ 0.2- 171210 H21 0.3- 0.0 171213 926 1.3- 0.1+
171209 I52 0.2+ 0.1- 171210 H21 0.0 0.1- 171213 926 0.9- 0.2-
171209 I52 0.3- 0.7- 171210 H21 0.0 0.1- 171213 926 1.2- 0.4+
171209 I52 0.6+ 0.2- 171210 H21 0.0 0.1- 171213 I52 0.7+ 0.4-
171209 I52 0.2- 0.4+ 171210 H21 0.0 0.1- 171213 I52 0.6+ 0.5-
171209 F51 0.1+ 0.5- 171211 H21 0.3- 0.0 171213 I52 0.8+ 0.3-
171209 F51 0.5+ 1.0- 171211 H21 0.3- 0.2+ 171214 I52 1.6+ 0.1-
171209 F51 0.4+ 0.3+ 171211 H21 0.3- 0.0 171214 I52 1.4+ 0.1-
171209 F51 0.5+ 0.4+ 171211 H21 0.4- 0.0 171214 I52 0.7+ 0.1-
171209 104 1.2- 0.1+ 171211 H21 0.4- 0.1+ 171214 I52 1.7+ 0.4-
171209 104 0.6- 0.1+ 171212 J95 0.8- 0.1+ 171214 926 0.0 0.2-
171209 104 0.8- 0.2+ 171212 J95 0.7- 0.1+ 171214 926 0.1+ 0.2-
171209 104 0.6- 0.1+ 171212 J95 0.6- 0.3- 171214 926 0.1+ 0.5-
171209 595 0.2- 0.1+ 171212 J95 0.7- 0.0
Ephemeris:
2017 XH2 a,e,i = 2.32, 0.55, 33 q = 1.0413
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 11 14 05 55 12.3 -34 37 56 0.3030 1.1513 115.1 51.1 23.2
...
2017 11 29 06 18 19.1 -18 15 33 0.1444 1.0863 130.8 43.4 21.3
...
2017 12 07 06 45 49.1 +18 00 33 0.08554 1.0624 153.5 24.5 19.5
...
2017 12 13 07 45 59.2 +62 05 43 0.09165 1.0501 133.9 42.5 20.2
2017 12 14 08 07 00.6 +67 34 05 0.09748 1.0486 129.1 46.8 20.4
2017 12 15 08 35 01.8 +72 09 05 0.1042 1.0472 124.7 50.6 20.7
...
2017 12 21 14 11 51.5 +80 10 40 0.1559 1.0419 107.7 64.1 21.9
...
2017 12 29 16 34 31.0 +72 58 24 0.2353 1.0432 98.2 68.9 23.0
...
2018 01 13 17 12 19.3 +67 00 22 0.3818 1.0710 92.6 66.6 24.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-X108
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