MPEC 2018-O44 : 2018 OB1
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M.P.E.C. 2018-O44 Issued 2018 July 26, 10:20 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 OB1
Observations:
K18O01B C2018 07 11.58865323 11 49.659+00 45 28.01 22.2 GVEO044F51
K18O01B C2018 07 11.59884623 11 50.971+00 45 37.11 22.8 GVEO044F51
K18O01B C2018 07 13.57504323 16 17.055+01 14 40.56 22.4 GVEO044F51
K18O01B C2018 07 13.58560123 16 18.440+01 14 49.90 22.5 GVEO044F51
K18O01B C2018 07 13.59617523 16 19.850+01 14 59.67 22.7 GVEO044F51
K18O01B C2018 07 16.55809423 23 14.802+01 59 53.94 22.7 GVEO044F52
K18O01B C2018 07 16.57854723 23 17.623+02 00 12.62 21.3 GVEO044F52
K18O01B C2018 07 16.59189323 23 19.516+02 00 25.43 23.0 GVEO044F52
K18O01B C2018 07 19.55698623 30 37.326+02 47 10.17 21.7 GVEO044F52
K18O01B C2018 07 19.57882123 30 40.525+02 47 31.31 22.3 GVEO044F52
K18O01B C2018 07 19.59003323 30 42.183+02 47 42.13 23.0 GVEO044F52
K18O01B C2018 07 20.51945523 33 04.951+03 02 45.35 22.8 GVEO044F52
K18O01B C2018 07 20.53939523 33 07.915+03 03 04.82 22.2 GVEO044F52
K18O01B C2018 07 20.54952423 33 09.431+03 03 14.87 21.9 GVEO044F52
K18O01B* C2018 07 23.55155 23 41 08.648+03 53 16.45 22.0 wUEO044F52
K18O01B C2018 07 23.56211 23 41 10.315+03 53 27.34 22.1 wUEO044F52
K18O01B C2018 07 23.57421 23 41 12.229+03 53 39.54 22.0 wUEO044F52
K18O01B C2018 07 23.58520 23 41 13.995+03 53 50.95 21.9 wUEO044F52
K18O01B KC2018 07 24.34106 23 43 20.24 +04 06 45.8 22.0 RoEO044291
K18O01B KC2018 07 24.36818 23 43 24.69 +04 07 14.4 21.8 RoEO044291
K18O01B KC2018 07 25.35699923 46 12.19 +04 24 22.9 21.5 VuEO044H21
K18O01B KC2018 07 25.37199023 46 14.68 +04 24 38.6 21.6 VuEO044H21
K18O01B ^C2018 07 25.46127 23 46 29.92 +04 26 14.4 21.8 RoEO044695
K18O01B ^C2018 07 25.46617 23 46 30.73 +04 26 19.5 22.0 RoEO044695
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
695 Kitt Peak. Observer R. A. Mastaler. 2.3-m f/9 reflector + 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. Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Dukes, T. Lowe,
A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau,
H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, 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. 0.76-m f/3.0
astrograph + CCD.
Orbital elements:
2018 OB1 PHA, Earth MOID = 0.0362 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 326.47606 (2000.0) P Q
n 0.16597361 Peri. 224.62747 +0.77284080 -0.63456209
a 3.2792663 Node 174.74618 +0.60134074 +0.72880272
e 0.6978816 Incl. 4.34176 +0.20274717 +0.25724998
P 5.94 H 20.9 G 0.15 U 7
Residuals in seconds of arc
180711 F51 0.0 0.1- 180719 F52 0.1+ 0.0 180723 F52 0.3- 0.2-
180711 F51 0.0 0.1+ 180719 F52 0.0 0.1+ 180723 F52 0.1- 0.1-
180713 F51 0.1+ 0.0 180719 F52 0.2+ 0.1+ 180724 291 0.2+ 0.2+
180713 F51 0.0 0.1- 180720 F52 0.3+ 0.2+ 180724 291 0.3+ 0.6+
180713 F51 0.1+ 0.2+ 180720 F52 0.1- 0.1+ 180725 H21 0.1+ 0.2-
180716 F52 0.2- 0.1- 180720 F52 0.1- 0.2+ 180725 H21 0.1- 0.3-
180716 F52 0.5- 0.4- 180723 F52 0.2+ 0.2- 180725 695 0.1+ 0.0
180716 F52 0.1+ 0.0 180723 F52 0.1- 0.1- 180725 695 0.0 0.0
Ephemeris:
2018 OB1 a,e,i = 3.28, 0.70, 4 q = 0.9907
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 06 26 22 40 30.0 -02 42 49 1.0397 1.7185 113.4 32.9 23.5
...
2018 07 11 23 10 31.8 +00 37 00 0.8091 1.5798 119.4 34.1 22.8
...
2018 07 19 23 29 13.0 +02 38 18 0.6977 1.5064 121.9 34.9 22.4
...
2018 07 25 23 45 10.9 +04 18 16 0.6203 1.4519 123.3 35.8 22.1
2018 07 26 23 48 03.0 +04 35 49 0.6079 1.4429 123.5 36.0 22.1
2018 07 27 23 50 59.3 +04 53 38 0.5956 1.4340 123.6 36.1 22.0
...
2018 08 02 00 10 14.9 +06 46 44 0.5257 1.3806 124.2 37.4 21.7
...
2018 08 10 00 41 32.2 +09 35 33 0.4422 1.3115 123.7 40.0 21.3
...
2018 08 25 02 07 12.9 +15 34 33 0.3240 1.1913 116.5 49.4 20.7
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-O44
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