MPEC 2019-D41 : COMET C/2019 B3 (PANSTARRS)
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M.P.E.C. 2019-D41 Issued 2019 Feb. 27, 17:05 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/2019 B3 (PANSTARRS)
This object was initially reported as a possible comet by R. Weryk,
R. Wainscoat and Y. Ramanjooloo (F51, Jan. 24), who described it as having a
FWHM of ~1".8 (compared to 1".15 +/- 0".03 for nearby stars), with an asymmetry
towards the north east. Weryk and Wainscoat (568, Feb. 4) reported that in
three 60-s gri-band images tracked non-siderally, the object was close to a
background star, which made it difficult to determine whether there was tail.
The object had a 2".0 FWHM (compared to 1".26 +/- 0".04 for nearby stars).
Observations:
CK19B030* C2019 01 24.58054 12 20 43.527-37 35 36.82 19.6 iUED041F51
CK19B030 C2019 01 24.59028 12 20 43.373-37 35 40.29 19.5 iUED041F51
CK19B030 C2019 01 24.60001 12 20 43.232-37 35 43.62 19.5 iUED041F51
CK19B030 C2019 01 24.60974 12 20 43.072-37 35 47.31 19.4 iUED041F51
CK19B030 |C2019 01 27.24245 12 20 02.87 -37 51 30.2 19.9 VuED041807
CK19B030 |C2019 01 27.24820 12 20 02.77 -37 51 32.3 19.8 VuED041807
CK19B030 |C2019 01 27.25411 12 20 02.66 -37 51 34.4 19.9 VuED041807
CK19B030 1C2019 01 28.60243 12 19 40.37 -37 59 29.9 VED041Q62
CK19B030 1C2019 01 28.60554 12 19 40.31 -37 59 31.1 VED041Q62
CK19B030 1C2019 01 28.60865 12 19 40.24 -37 59 32.3 18.8 GVED041Q62
CK19B030 KC2019 01 29.19237 12 19 30.31 -38 02 54.7 20.0 VqED041I47
CK19B030 KC2019 01 29.20327 12 19 30.05 -38 02 58.9 20.0 VqED041I47
CK19B030 KC2019 01 31.15593 12 18 54.86 -38 14 11.8 20.1 VqED041I47
CK19B030 KC2019 01 31.17337 12 18 54.59 -38 14 19.2 19.8 VqED041I47
CK19B030 KC2019 01 31.29675 12 18 52.27 -38 15 00.6 20.0 VqED041I47
CK19B030 KC2019 01 31.31245 12 18 51.88 -38 15 06.2 20.1 VqED041I47
CK19B030 KC2019 02 01.15246 12 18 36.11 -38 19 51.2 19.9 VqED041I47
CK19B030 KC2019 02 01.15824 12 18 35.98 -38 19 52.9 20.0 VqED041I47
CK19B030 KC2019 02 02.60421 12 18 07.39 -38 27 58.9 18.9 GVED041474
CK19B030 KC2019 02 02.60777 12 18 07.33 -38 27 59.2 20.1 GVED041474
CK19B030 KC2019 02 02.61133 12 18 07.20 -38 28 01.7 19.6 GVED041474
CK19B030 KC2019 02 02.61490 12 18 07.20 -38 28 02.5 18.9 GVED041474
CK19B030 ^C2019 02 04.65889912 17 24.622-38 39 14.69 19.10GVED041568
CK19B030 ^C2019 02 04.66008012 17 24.589-38 39 15.17 19.29GVED041568
CK19B030 ^C2019 02 04.66125912 17 24.558-38 39 15.62 19.35GVED041568
CK19B030 C2019 02 06.26402612 16 49.47 -38 47 50.6 19.2 RqED041W85
CK19B030 C2019 02 06.26641012 16 49.41 -38 47 51.3 19.1 RqED041W85
CK19B030 C2019 02 06.27118212 16 49.30 -38 47 52.9 19.2 RqED041W85
CK19B030 C2019 02 06.27595012 16 49.19 -38 47 54.5 19.2 RqED041W85
CK19B030 KC2019 02 07.61671 12 16 18.59 -38 54 56.9 19.0 GVED041474
CK19B030 KC2019 02 07.62027 12 16 18.51 -38 54 58.0 19.4 GVED041474
CK19B030 KC2019 02 07.62383 12 16 18.43 -38 54 59.3 19.5 GVED041474
CK19B030 KC2019 02 15.24583 12 13 04.02 -39 32 32.6 19.1 VqED041I47
CK19B030 KC2019 02 15.26086 12 13 03.61 -39 32 37.0 19.2 VqED041I47
CK19B030 KC2019 02 15.27586 12 13 03.16 -39 32 41.0 19.4 VqED041I47
CK19B030 KC2019 02 17.95014 12 11 47.11 -39 44 46.4 19.0 GVED041L29
CK19B030 KC2019 02 17.96172 12 11 46.76 -39 44 49.2 19.2 GVED041L29
CK19B030 KC2019 02 17.97330 12 11 46.40 -39 44 52.1 19.2 GVED041L29
CK19B030 |C2019 02 24.19106 12 08 34.98 -40 10 34.9 19.6 VuED041807
CK19B030 |C2019 02 24.19476 12 08 34.86 -40 10 35.5 19.4 VuED041807
CK19B030 |C2019 02 24.19846 12 08 34.76 -40 10 36.5 19.3 VuED041807
CK19B030 KC2019 02 24.21618 12 08 34.11 -40 10 40.3 19.1 VqED041I47
CK19B030 KC2019 02 24.23480 12 08 33.51 -40 10 44.9 19.1 VqED041I47
CK19B030 KC2019 02 24.25342 12 08 32.90 -40 10 49.3 19.1 VqED041I47
CK19B030 |C2019 02 27.25344 12 06 53.85 -40 21 57.9 18.9 VuED041807
CK19B030 |C2019 02 27.25600 12 06 53.72 -40 21 58.0 18.9 VuED041807
CK19B030 |C2019 02 27.25795 12 06 53.64 -40 21 58.2 19.0 VuED041807
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
568 Mauna Kea. Observers R. Wainscoat, L. Wells, S. Prunet. Measurers
R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, J. Fairlamb,
H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.3-m f/6.8
reflector + CCD.
L29 Drebach-South Observatory, Windhoek. Observer G. Lehmann. 0.4-m f/3.6
reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
W85 Cerro Tololo-LCO A. Observers J. D. Armstrong, J. O. Teagarden. 1.0-m
f/8 Ritchey-Chretien + CCD.
Orbital elements:
C/2019 B3 (PANSTARRS)
Epoch 2021 Jan. 26.0 TT = JDT 2459240.5
T 2021 Jan. 19.70594 TT MPCW
q 6.8260128 (2000.0) P Q
z -0.0003253 Peri. 263.86683 -0.11763945 +0.99273860
+/-0.0001888 Node 358.43081 +0.00244684 -0.02500613
e 1.0022205 Incl. 66.53918 -0.99305336 -0.11766378
From 47 observations 2019 Jan. 24-Feb. 27, mean residual 0".4.
C/2019 B3 (PANSTARRS)
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5
T 2021 Jan. 18.98780 TT MPCW
q 6.8274730 (2000.0) P Q
z -0.0003959 Peri. 263.81802 -0.11865903 +0.99260731
+/-0.0001888 Node 358.40629 +0.00228300 -0.02541890
e 1.0027029 Incl. 66.52582 -0.99293244 -0.11867862
From 47 observations 2019 Jan. 24-Feb. 27, mean residual 0".4.
Ephemeris:
C/2019 B3 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2019 01 28 12 19 50.4 -37 55 58 7.9883 8.2750 103.6 6.6 19.2
...
2019 02 12 12 14 30.9 -39 17 05 7.7449 8.2222 115.8 6.2 19.1
...
2019 02 20 12 10 46.2 -39 53 37 7.6289 8.1943 121.9 5.9 19.0
...
2019 02 26 12 07 35.7 -40 17 24 7.5497 8.1735 126.2 5.6 19.0
2019 02 27 12 07 02.3 -40 21 03 7.5372 8.1700 126.9 5.6 19.0
2019 02 28 12 06 28.5 -40 24 35 7.5250 8.1666 127.6 5.5 19.0
...
2019 03 06 12 02 56.8 -40 43 48 7.4559 8.1459 131.4 5.2 19.0
...
2019 03 14 11 57 56.1 -41 03 42 7.3767 8.1185 135.8 4.9 18.9
...
2019 03 29 11 48 03.4 -41 23 09 7.2712 8.0677 140.6 4.5 18.9
Gareth V. Williams (C) Copyright 2019 MPC M.P.E.C. 2019-D41
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