[Iaude] MPEC Q34: COMET P/2018 P3 (PANSTARRS)
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Aug 18 16:17:17 EDT 2018
M.P.E.C. 2018-Q34 Issued 2018 Aug. 18, 19:54 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2018 P3 (PANSTARRS)
R. Weryk (F51) reported that the Aug. 8 images of this object showed a
~1".3 FWHM (compared to the stellar 1".05) and a 6" tail in P.A. 255.
R. Wainscoat (568, Aug. 10) reported images with a 1".05 FWHM (stellar 0".75)
and a 10" tail slightly south of west.
Observations:
PK18P030* C2018 08 08.54438 00 14 07.672-17 14 22.51 21.0 wUEQ034F51
PK18P030 C2018 08 08.55556 00 14 07.993-17 14 24.62 20.9 wUEQ034F51
PK18P030 C2018 08 08.56676 00 14 08.316-17 14 26.77 20.8 wUEQ034F51
PK18P030 C2018 08 08.57793 00 14 08.639-17 14 28.81 20.8 wUEQ034F51
PK18P030 KC2018 08 10.42287 00 15 05.34 -17 20 26.2 20.0 GUEQ034734
PK18P030 KC2018 08 10.42762 00 15 05.45 -17 20 27.0 20.0 GUEQ034734
PK18P030 KC2018 08 10.43238 00 15 05.58 -17 20 27.8 20.0 GUEQ034734
PK18P030 _C2018 08 10.55190900 15 09.180-17 20 49.77 20.8 GVEQ034568
PK18P030 _C2018 08 10.55286400 15 09.203-17 20 49.96 20.5 GVEQ034568
PK18P030 _C2018 08 10.55381400 15 09.227-17 20 50.15 20.6 GVEQ034568
PK18P030 1C2018 08 12.62745 00 16 04.55 -17 27 45.1 VEQ034Q62
PK18P030 1C2018 08 12.63122 00 16 04.62 -17 27 45.6 20.9 VEQ034Q62
PK18P030 KC2018 08 13.05554500 16 14.67 -17 29 25.3 20.2 GVEQ034L01
PK18P030 KC2018 08 13.09710600 16 15.51 -17 29 34.6 20.1 GVEQ034L01
PK18P030 HC2018 08 14.36537 00 16 43.91 -17 34 02.9 20.4 RoEQ034691
PK18P030 HC2018 08 14.38024 00 16 44.16 -17 34 06.3 20.0 RoEQ034691
PK18P030 HC2018 08 14.39575 00 16 44.41 -17 34 10.0 20.1 RoEQ034691
PK18P030 KC2018 08 17.04608 00 17 32.49 -17 43 55.1 19.2 GVEQ034104
PK18P030 KC2018 08 17.06068 00 17 32.72 -17 43 58.7 19.2 GVEQ034104
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri, G. Succi.
Measurers P. Bacci, L. Tesi, G. Fagioli. 0.6-m f/4.0 reflector + CCD.
568 Mauna Kea. Observers R. J. Wainscoat, D. Woodworth. Measurers
M. Micheli, R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer R. A. Mastaler.
0.9-m f/3 reflector + CCD.
734 Farpoint Observatory, Eskridge. Observer G. Hug. 0.69-m 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, C. Waters, R. Weryk.
1.8-m Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, F. Hrzenjak,
G. Kervina, E. Pettarin, A. Dragovic. Measurer E. Pettarin. 1.0-m f/2.9
reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
Orbital elements:
P/2018 P3 (PANSTARRS)
Epoch 2018 Oct. 9.0 TT = JDT 2458400.5
T 2018 Oct. 9.17341 TT MPCW
q 1.7584133 (2000.0) P Q
n 0.18817644 Peri. 305.64225 +0.98784415 -0.08005280
a 3.0159621 Node 59.29738 +0.13369662 +0.87485504
e 0.4169644 Incl. 8.91519 -0.07930411 +0.47772398
P 5.24
>From 22 observations 2018 Aug. 8-17, mean residual 0".4.
P/2018 P3 (PANSTARRS)
Epoch 2024 Jan. 11.0 TT = JDT 2460320.5
T 2024 Jan. 3.87192 TT MPCW
q 1.7526383 (2000.0) P Q
n 0.18846410 Peri. 305.76939 +0.98773478 -0.08136879
a 3.0128924 Node 59.24725 +0.13488181 +0.87459526
e 0.4182871 Incl. 8.92079 -0.07865690 +0.47797725
P 5.23
>From 22 observations 2018 Aug. 8-17, mean residual 0".4.
P/2018 P3 (PANSTARRS)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 Oct. 9.16420 TT MPCW
q 1.7584844 (2000.0) P Q
n 0.18820878 Peri. 305.63483 +0.98785374 -0.07993260
a 3.0156166 Node 59.29782 +0.13359065 +0.87487161
e 0.4168740 Incl. 8.91522 -0.07936330 +0.47771377
P 5.24
>From 22 observations 2018 Aug. 8-17, mean residual 0".4.
Ephemeris:
P/2018 P3 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2018 07 19 23 56 47.4 -16 36 19 1.1348 1.8847 122.3 27.1 20.5
...
2018 08 03 00 10 37.3 -16 58 41 0.9999 1.8446 132.6 23.9 20.2
...
2018 08 11 00 15 21.7 -17 22 13 0.9391 1.8259 138.4 21.6 20.0
...
2018 08 17 00 17 31.7 -17 43 36 0.8992 1.8133 143.0 19.6 19.9
2018 08 18 00 17 46.1 -17 47 21 0.8931 1.8113 143.8 19.3 19.8
2018 08 19 00 17 58.5 -17 51 08 0.8871 1.8093 144.5 18.9 19.8
...
2018 08 25 00 18 29.5 -18 13 57 0.8544 1.7983 149.1 16.8 19.7
...
2018 09 02 00 17 17.6 -18 41 54 0.8199 1.7856 154.8 13.9 19.6
...
2018 09 17 00 10 13.7 -19 06 55 0.7859 1.7682 161.5 10.4 19.5
Gareth V. Williams (C) Copyright 2018 MPC M.P.E.C. 2018-Q34
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