MPEC 2017-F138: COMET C/2017 E1 (Borisov)
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M.P.E.C. 2017-F138 Issued 2017 Mar. 26, 20:22 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/2017 E1 (Borisov)
Observations:
CK17E010 C2017 03 04.80112 19 25 28.85 -10 15 06.4 qEF138D95
CK17E010 C2017 03 04.80332 19 25 29.58 -10 15 06.3 qEF138D95
CK17E010 C2017 03 04.80916 19 25 31.52 -10 15 05.3 18.1 TqEF138D95
CK17E010 C2017 03 04.81632 19 25 33.77 -10 15 02.5 mEF138349
CK17E010 C2017 03 04.82064 19 25 35.20 -10 15 01.4 13.9 TmEF138349
CK17E010 |C2017 03 05.51173 19 29 21.56 -10 10 55.3 vEF138H06
CK17E010 |C2017 03 05.51308 19 29 22.01 -10 10 54.5 vEF138H06
CK17E010 |C2017 03 05.51442 19 29 22.48 -10 10 53.8 12.6 TvEF138H06
CK17E010 C2017 03 09.22571 19 49 50.28 -09 45 48.9 15.5 NqEF138J22
CK17E010 C2017 03 09.22727 19 49 50.71 -09 45 50.2 15.5 NqEF138J22
CK17E010 C2017 03 09.22882 19 49 51.17 -09 45 51.5 15.5 NqEF138J22
CK17E010 KC2017 03 09.44351 19 51 02.79 -09 44 11.8 16.3 NqEF138850
CK17E010 KC2017 03 09.45954 19 51 08.04 -09 44 04.9 16.2 NqEF138850
CK17E010 KC2017 03 11.17196 20 00 40.26 -09 30 38.6 15.3 TqEF138215
CK17E010 KC2017 03 11.17324 20 00 40.72 -09 30 38.6 15.1 TqEF138215
CK17E010 KC2017 03 11.17453 20 00 41.04 -09 30 38.0 15.1 TqEF138215
CK17E010 C2017 03 11.78904 20 04 07.21 -09 25 29.9 mEF138349
CK17E010 C2017 03 11.79238 20 04 08.35 -09 25 27.8 13.5 TmEF138349
CK17E010 9C2017 03 13.25848 20 12 20.69 -09 12 47.6 15.6 NqEF138G40
CK17E010 9C2017 03 13.26179 20 12 21.78 -09 12 45.2 15.6 NqEF138G40
CK17E010 9C2017 03 13.26525 20 12 23.02 -09 12 43.7 15.6 NqEF138G40
CK17E010 tC2017 03 13.33138 20 12 45.08 -09 12 03.2 15.6 TqEF138Y00
CK17E010 tC2017 03 13.33297 20 12 45.64 -09 12 01.9 15.7 TqEF138Y00
CK17E010 tC2017 03 13.33465 20 12 46.28 -09 12 01.1 15.8 TqEF138Y00
CK17E010 KC2017 03 16.83069 20 32 23.76 -08 38 48.1 uEF138367
CK17E010 KC2017 03 16.83088 20 32 23.81 -08 38 47.9 uEF138367
CK17E010 KC2017 03 16.83367 20 32 24.74 -08 38 46.4 12.8 TuEF138367
CK17E010 KC2017 03 18.39557 20 41 10.99 -08 22 30.6 15.5 NqEF138I47
CK17E010 KC2017 03 18.39841 20 41 11.93 -08 22 28.4 15.6 NqEF138I47
CK17E010 KC2017 03 18.40143 20 41 12.89 -08 22 26.5 15.6 NqEF138I47
CK17E010 C2017 03 18.82791 20 43 36.36 -08 18 02.0 mEF138349
CK17E010 C2017 03 18.83164 20 43 37.65 -08 17 58.8 12.8 TmEF138349
CK17E010 C2017 03 19.80836 20 49 06.22 -08 07 24.1 qEF138D95
CK17E010 C2017 03 19.81567 20 49 08.71 -08 07 19.6 qEF138D95
CK17E010 C2017 03 19.81713 20 49 09.20 -08 07 17.2 13.3 TqEF138D95
CK17E010 C2017 03 21.33801 20 57 39.78 -07 50 10.9 15.5 TqEF138Y00
CK17E010 C2017 03 21.33894 20 57 40.07 -07 50 10.0 15.6 TqEF138Y00
CK17E010 C2017 03 21.34036 20 57 40.51 -07 50 08.7 15.5 TqEF138Y00
CK17E010 C2017 03 21.34129 20 57 40.81 -07 50 09.3 15.5 TqEF138Y00
CK17E010 C2017 03 21.34219 20 57 41.11 -07 50 08.6 15.6 TqEF138Y00
CK17E010 C2017 03 21.34309 20 57 41.42 -07 50 07.4 15.5 TqEF138Y00
CK17E010 3C2017 03 22.37191 21 03 26.07 -07 38 13.5 15.2 NUEF138W88
CK17E010 3C2017 03 22.40319 21 03 36.51 -07 37 51.9 15.1 NUEF138W88
CK17E010 C2017 03 23.34557 21 08 51.18 -07 26 45.3 15.3 TqEF138Y00
CK17E010 C2017 03 23.34701 21 08 51.62 -07 26 44.9 15.5 TqEF138Y00
CK17E010 C2017 03 23.34816 21 08 52.06 -07 26 44.2 15.6 TqEF138Y00
CK17E010 KC2017 03 23.39337 21 09 07.27 -07 26 10.2 15.5 NqEF138I47
CK17E010 KC2017 03 23.39690 21 09 08.48 -07 26 07.5 15.5 NqEF138I47
CK17E010 KC2017 03 23.40048 21 09 09.64 -07 26 04.7 15.5 NqEF138I47
CK17E010 @C2017 03 24.52869 21 15 25.15 -07 12 37.4 16.4 NUEF138695
CK17E010 @C2017 03 24.53031 21 15 25.67 -07 12 36.7 16.5 NUEF138695
CK17E010 @C2017 03 24.53193 21 15 26.18 -07 12 34.8 16.3 NUEF138695
CK17E010 @C2017 03 25.52558 21 20 55.82 -07 00 22.3 16.4 NUEF138695
CK17E010 @C2017 03 25.52721 21 20 56.40 -07 00 21.2 16.5 NUEF138695
CK17E010 @C2017 03 25.52884 21 20 56.90 -07 00 20.2 16.4 NUEF138695
CK17E010 @C2017 03 25.53044 21 20 57.46 -07 00 18.7 16.4 NUEF138695
Observer details:
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
367 Yatsuka. Observer H. Abe. 0.26-m f/6.0 reflector + CCD.
695 Kitt Peak. Observers M.-T. Hui, A. Graykowski. Measurer M.-T. Hui.
0.9-m WIYN reflector + CCD.
850 Cordell-Lorenz Observatory, Sewanee. Observers D. T. Durig, M. V. Naylor,
M. F. Trejo-Balbeuna. Measurer D. T. Durig. 0.3-m f/9.4
Schmidt-Cassegrain + CCD.
D95 Kurihara. Observer T. Takahashi. 0.25-m f/4.2 reflector + CCD.
G40 Slooh.com Canary Islands Observatory. Observer B. Lutkenhoner. 0.43-m
f/6.8 Corrected Dall-Kirkham + CCD.
H06 iTelescope Observatory, Mayhill. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.3-m f/10
reflector + CCD.
J22 Tacande Observatory, La Palma. Observer K. Hills. 0.5-m f/2.9 astrograph
+ CCD.
W88 Slooh.com Chile Observatory, La Dehesa. Observer B. Lutkenhoner. 0.35-m
f/11 Schmidt-Cassegrain + CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel,
J. Barros. Measurer C. Jacques. 0.28-m f/2.2 astrograph + CCD, 0.45-m
f/2.9 reflector + CCD.
Orbital elements:
C/2017 E1 (Borisov)
Epoch 2017 Mar. 28.0 TT = JDT 2457840.5
T 2017 Apr. 10.18015 TT MPCW
q 0.8999025 (2000.0) P Q
z +0.0012607 Peri. 152.53687 +0.43528838 +0.88732086
+/-0.0011667 Node 142.69753 -0.86522306 +0.45905133
e 0.9988655 Incl. 14.55202 -0.24882339 -0.04397230
From 137 observations 2017 Mar. 1-25, mean residual 0".7.
C/2017 E1 (Borisov)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Apr. 10.17987 TT MPCW
q 0.8999047 (2000.0) P Q
z +0.0012551 Peri. 152.53615 +0.43528226 +0.88732408
+/-0.0011667 Node 142.69785 -0.86522656 +0.45904502
e 0.9988705 Incl. 14.55200 -0.24882195 -0.04397326
From 137 observations 2017 Mar. 1-25, mean residual 0".7.
Ephemeris:
C/2017 E1 (Borisov)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2017 02 24 18 38 48.8 -10 50 56 1.4201 1.2014 56.5 43.4 15.6
...
2017 03 11 19 59 42.2 -09 31 58 1.3319 1.0492 51.2 47.5 14.8
...
2017 03 19 20 44 33.7 -08 16 08 1.3218 0.9844 47.8 48.5 14.5
...
2017 03 25 21 18 01.0 -07 06 48 1.3305 0.9461 45.2 48.4 14.4
2017 03 26 21 23 32.2 -06 54 25 1.3332 0.9408 44.8 48.3 14.4
2017 03 27 21 29 02.0 -06 41 50 1.3362 0.9357 44.4 48.2 14.3
...
2017 04 02 22 01 27.5 -05 22 51 1.3612 0.9120 42.1 47.2 14.3
...
2017 04 10 22 42 47.2 -03 32 00 1.4101 0.8999 39.4 45.0 14.3
...
2017 04 25 23 52 58.4 -00 05 55 1.5342 0.9388 36.4 39.5 14.7
Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-F138
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