MPEC 2016-C01 : COMET C/2015 ER61 (PANSTARRS)
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M.P.E.C. 2016-C01 Issued 2016 Feb. 1, 01:10 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
COMET C/2015 ER61 (PANSTARRS)
Observations:
CK15E61R C2015 01 21.56437 11 06 06.685-01 13 13.21 22.4 NLEC001F51
CK15E61R C2015 01 21.57588 11 06 06.509-01 13 12.70 22.2 NLEC001F51
CK15E61R C2015 01 21.58746 11 06 06.350-01 13 12.28 22.4 NLEC001F51
CK15E61R C2015 01 23.48852 11 05 39.093-01 11 31.65 22.8 NLEC001F51
CK15E61R C2015 01 23.49998 11 05 38.919-01 11 31.30 22.6 NLEC001F51
CK15E61R C2015 02 16.44711 10 58 07.808-00 35 53.44 21.9 NLEC001F51
CK15E61R C2015 02 16.46003 10 58 07.533-00 35 51.82 21.8 NLEC001F51
CK15E61R C2015 02 16.48585 10 58 06.937-00 35 48.76 21.9 NLEC001F51
CK15E61R C2015 03 14.36931810 47 50.766+00 25 40.07 20.7 NtEC001F51
CK15E61R C2015 03 14.38147410 47 50.495+00 25 42.02 20.6 NtEC001F51
CK15E61R C2015 03 14.39357610 47 50.169+00 25 44.02 20.6 NtEC001F51
CK15E61R C2015 03 14.40571410 47 49.860+00 25 45.59 21.0 NtEC001F51
CK15E61R C2015 03 15.38177 10 47 26.415+00 28 19.97 21.5 NLEC001F51
CK15E61R C2015 03 15.39411 10 47 26.127+00 28 21.82 21.6 NLEC001F51
CK15E61R C2015 03 15.40643 10 47 25.826+00 28 23.87 21.7 NLEC001F51
CK15E61R C2015 03 15.41872 10 47 25.540+00 28 25.63 21.8 NLEC001F51
CK15E61R KC2015 03 26.16739 10 43 15.15 +00 56 55.1 22.0 NoEC001291
CK15E61R KC2015 03 26.19391 10 43 14.55 +00 56 59.7 21.6 NoEC001291
CK15E61R KC2015 03 26.22881 10 43 13.77 +00 57 05.1 21.5 NoEC001291
CK15E61R KC2015 03 26.94983 10 42 57.67 +00 58 59.5 qEC001J95
CK15E61R KC2015 03 26.98100 10 42 57.04 +00 59 04.8 qEC001J95
CK15E61R KC2015 03 27.00239 10 42 56.53 +00 59 08.2 21.2 NqEC001J95
CK15E61R ^C2015 03 27.35826 10 42 48.61 +01 00 04.0 21.6 NoEC001695
CK15E61R ^C2015 03 27.36408 10 42 48.49 +01 00 05.1 21.6 NoEC001695
CK15E61R ^C2015 03 27.36995 10 42 48.36 +01 00 05.7 21.5 NoEC001695
CK15E61R KC2015 03 29.29386 10 42 06.30 +01 05 08.8 20.8 NoEC001291
CK15E61R KC2015 03 29.30140 10 42 06.15 +01 05 10.3 21.2 NoEC001291
CK15E61R KC2015 03 29.30893 10 42 05.97 +01 05 11.7 21.0 NoEC001291
CK15E61R KC2015 04 15.22541 10 36 42.11 +01 47 09.9 21.2 NoEC001291
CK15E61R KC2015 04 15.23216 10 36 42.00 +01 47 11.1 21.5 NoEC001291
CK15E61R KC2015 04 15.23894 10 36 41.89 +01 47 12.1 21.4 NoEC001291
CK15E61R _C2015 04 16.30980910 36 24.697+01 49 38.92 21.4 NtEC001568
CK15E61R _C2015 04 16.32091810 36 24.515+01 49 40.52 20.7 NtEC001568
CK15E61R _C2015 04 16.34499710 36 24.130+01 49 43.63 21.4 NtEC001568
CK15E61R _C2015 04 16.35606110 36 23.945+01 49 45.12 21.1 NtEC001568
CK15E61R _C2015 04 16.36712310 36 23.766+01 49 46.62 21.3 NtEC001568
CK15E61R _C2015 04 16.37843910 36 23.577+01 49 48.18 21.3 NtEC001568
CK15E61R _C2015 04 16.39117410 36 23.377+01 49 49.84 21.3 NtEC001568
CK15E61R KC2015 04 18.24724 10 35 54.72 +01 53 58.6 21.5 NoEC001291
CK15E61R KC2015 04 18.28209 10 35 54.18 +01 54 03.2 21.4 NoEC001291
CK15E61R KC2015 04 18.32674 10 35 53.48 +01 54 09.1 oEC001291
CK15E61R C2015 04 22.27594 10 34 57.394+02 02 36.50 21.8 NLEC001F51
CK15E61R C2015 04 22.28848 10 34 57.220+02 02 38.07 21.5 NLEC001F51
CK15E61R C2015 04 22.30108 10 34 57.012+02 02 39.57 21.8 NLEC001F51
CK15E61R 2C2015 04 23.35435410 34 43.131+02 04 49.82 21.3 NtEC001568
CK15E61R 2C2015 04 23.42352410 34 42.211+02 04 58.28 21.2 NtEC001568
CK15E61R _C2015 06 12.26595010 33 34.035+02 53 29.02 21.0 NtEC001568
CK15E61R _C2015 06 12.26872010 33 34.058+02 53 28.90 20.8 NtEC001568
CK15E61R _C2015 06 12.31073010 33 34.474+02 53 28.47 21.0 NtEC001568
CK15E61R _C2015 06 12.31347210 33 34.502+02 53 28.45 20.6 NtEC001568
CK15E61R C2015 12 14.51073 11 54 59.24 -05 31 37.7 19.4 NREC001G45
CK15E61R C2015 12 14.51638 11 54 59.32 -05 31 38.5 19.3 NREC001G45
CK15E61R C2015 12 14.52366 11 54 59.41 -05 31 40.0 19.3 NREC001G45
CK15E61R C2015 12 14.54074 11 54 59.69 -05 31 42.2 19.3 NREC001G45
CK15E61R C2015 12 18.51133 11 55 55.67 -05 41 13.6 19.6 NREC001G45
CK15E61R C2015 12 18.51672 11 55 55.72 -05 41 14.6 19.5 NREC001G45
CK15E61R C2015 12 18.53508 11 55 55.96 -05 41 17.3 19.3 NREC001G45
CK15E61R C2015 12 18.54084 11 55 56.03 -05 41 18.2 19.2 NREC001G45
CK15E61R C2015 12 18.54090 11 55 56.02 -05 41 18.1 19.5 NREC001G45
CK15E61R 1C2015 12 27.73387 11 57 33.55 -06 00 19.8 vEC001Q62
CK15E61R 1C2015 12 27.74056 11 57 33.60 -06 00 20.9 18.6 NvEC001Q62
CK15E61R KC2016 01 17.12331 11 58 08.20 -06 24 42.4 18.6 NoEC001461
CK15E61R KC2016 01 17.13215 11 58 08.12 -06 24 42.5 18.7 NoEC001461
CK15E61R KC2016 01 17.24286 11 58 07.64 -06 24 44.6 18.5 NqEC001I47
CK15E61R KC2016 01 17.30896 11 58 07.28 -06 24 46.4 18.6 NqEC001I47
CK15E61R {C2016 01 17.49481511 58 06.261-06 24 53.67 18.8 NtEC001695
CK15E61R {C2016 01 17.50285311 58 06.215-06 24 54.16 19.0 NtEC001695
CK15E61R {C2016 01 17.53301811 58 06.026-06 24 54.35 19.0 NtEC001695
CK15E61R KC2016 01 19.11265 11 57 56.86 -06 25 33.2 18.1 NoEC001461
CK15E61R KC2016 01 19.12448 11 57 56.79 -06 25 33.5 18.1 NoEC001461
CK15E61R {C2016 01 19.47661511 57 54.509-06 25 40.38 18.7 NtEC001695
CK15E61R {C2016 01 19.50682611 57 54.273-06 25 41.11 18.9 NtEC001695
CK15E61R {C2016 01 19.51492211 57 54.233-06 25 40.84 18.6 NtEC001695
CK15E61R KC2016 01 20.30052 11 57 48.86 -06 25 52.4 18.4 NqEC001I47
CK15E61R KC2016 01 20.32452 11 57 48.66 -06 25 52.9 18.5 NqEC001I47
CK15E61R KC2016 01 20.34669 11 57 48.49 -06 25 53.3 18.4 NqEC001I47
CK15E61R {C2016 01 23.44985511 57 22.714-06 26 19.74 18.1 NtEC001695
CK15E61R {C2016 01 23.45793411 57 22.651-06 26 19.86 18.5 NtEC001695
CK15E61R {C2016 01 23.46601311 57 22.573-06 26 19.92 18.3 NtEC001695
CK15E61R {C2016 01 23.47410611 57 22.527-06 26 20.23 17.9 NtEC001695
Observer details:
291 LPL/Spacewatch II. Observers A. F. Tubbiolo, J. V. Scotti. 1.8-m
Spacewatch telescope.
461 University of Szeged, Piszkesteto Stn. (Konkoly). Observer K. Sarneczky.
0.60-m Schmidt + CCD.
568 Mauna Kea. Observers K. J. Meech, J. V. Keane, J. Chavez. Measurer
M. Micheli.
695 Kitt Peak. Observers R. S. McMillan, J. V. Scotti, T. Vorobjov.
2.3-m f/3 reflector + CCD, 1.3-m f/13 Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, S. Watters, J.
Thiel, T. Goggia. Measurer PS1 Science Consortium. 1.8-m
Ritchey-Chretien + CCD.
G45 Space Surveillance Telescope, Atom Site. Observers M. Blythe, R. Brungard,
P. Festler, T. McVey, J. Paige, G. Spitz. Measurers M. Cornell, A. Klein,
J. Ruprecht, G. Ushomirsky, J. Varey, D. Woods. 3.5-m f/1 reflector + CCD.
I47 Pierre Auger Observatory, Malargue. Observers M. Masek, J. Jurysek,
K. Honkova. Measurer M. Masek. 0.3-m f/10 reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.70-m f/6.6
astrograph + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.4-m Schmidt-Cassegrain + CCD.
Orbital elements:
C/2015 ER61 (PANSTARRS)
Epoch 2017 May 7.0 TT = JDT 2457880.5
T 2017 May 9.95601 TT MPCW
q 1.0421357 (2000.0) P Q
z +0.0026037 Peri. 68.19844 +0.54603159 +0.83282657
+/-0.0000097 Node 235.21721 -0.80368158 +0.49012065
e 0.9972866 Incl. 6.34908 -0.23652784 +0.25725796
From 80 observations 2015 Jan. 21-2016 Jan. 23, mean residual 0".2.
C/2015 ER61 (PANSTARRS)
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5
T 2017 May 10.02510 TT MPCW
q 1.0540487 (2000.0) P Q
z +0.0003469 Peri. 64.91397 +0.53993309 +0.83676276
+/-0.0000097 Node 238.06798 -0.80575662 +0.48253845
e 0.9996344 Incl. 6.16263 -0.24336912 +0.25881409
From 80 observations 2015 Jan. 21-2016 Jan. 23, mean residual 0".2.
Ephemeris:
C/2015 ER61 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2016 01 02 11 58 07.6 -06 09 11 5.7692 5.9974 98.7 9.3 19.3
...
2016 01 17 11 58 08.8 -06 24 38 5.3952 5.8616 113.8 8.8 19.1
...
2016 01 25 11 57 07.4 -06 26 14 5.2053 5.7887 122.1 8.3 19.0
...
2016 01 31 11 55 52.1 -06 24 07 5.0693 5.7337 128.4 7.7 18.9
2016 02 01 11 55 37.1 -06 23 29 5.0473 5.7245 129.5 7.6 18.9
2016 02 02 11 55 21.4 -06 22 45 5.0254 5.7153 130.6 7.5 18.8
...
2016 02 08 11 53 32.7 -06 16 39 4.8985 5.6601 137.0 6.8 18.7
...
2016 02 16 11 50 30.5 -06 03 43 4.7421 5.5861 145.7 5.7 18.6
...
2016 03 02 11 43 09.3 -05 25 19 4.4949 5.4464 162.1 3.2 18.3
(Last issue was M.P.E.C. 2016-B106)
Gareth V. Williams (C) Copyright 2016 MPC M.P.E.C. 2016-C01
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