MPEC 2017-F137: COMET C/2017 D2 (Barros)
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M.P.E.C. 2017-F137 Issued 2017 Mar. 26, 19:59 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 D2 (Barros)
Observations:
CK17D020 C2017 03 13.30621 19 46 07.35 -47 23 11.2 18.4 TqEF137Y00
CK17D020 C2017 03 13.30835 19 46 07.75 -47 23 10.8 18.3 TqEF137Y00
CK17D020 C2017 03 13.31175 19 46 08.22 -47 23 09.9 17.8 TqEF137Y00
CK17D020 !C2017 03 13.36346 19 46 15.53 -47 22 58.8 18.1 NUEF137W88
CK17D020 !C2017 03 13.37206 19 46 16.73 -47 22 56.7 18.2 NUEF137W88
CK17D020 !C2017 03 13.37756 19 46 17.47 -47 22 55.6 18.1 NUEF137W88
CK17D020 C2017 03 24.32595 20 11 11.12 -46 38 05.5 17.7 TqEF137Y00
CK17D020 C2017 03 24.32941 20 11 11.72 -46 38 06.4 17.7 TqEF137Y00
CK17D020 C2017 03 24.33323 20 11 12.24 -46 38 03.9 17.9 TqEF137Y00
CK17D020 3C2017 03 24.34070 20 11 13.25 -46 38 01.1 17.0 TUEF137W88
CK17D020 3C2017 03 24.34411 20 11 13.68 -46 38 00.0 17.2 TUEF137W88
CK17D020 3C2017 03 24.34743 20 11 14.13 -46 37 59.5 17.1 TUEF137W88
CK17D020 C2017 03 25.32973 20 13 23.84 -46 33 30.4 17.9 TqEF137Y00
CK17D020 C2017 03 25.33337 20 13 24.29 -46 33 29.0 18.0 TqEF137Y00
CK17D020 C2017 03 25.33438 20 13 24.42 -46 33 28.9 17.8 TqEF137Y00
CK17D020 C2017 03 25.33614 20 13 24.67 -46 33 28.7 18.0 TqEF137Y00
CK17D020 C2017 03 25.33743 20 13 24.87 -46 33 27.4 17.8 TqEF137Y00
CK17D020 C2017 03 25.33843 20 13 24.99 -46 33 27.6 17.9 TqEF137Y00
CK17D020 C2017 03 25.33974 20 13 25.17 -46 33 27.3 17.9 TqEF137Y00
CK17D020 C2017 03 25.34229 20 13 25.51 -46 33 26.5 17.9 TqEF137Y00
CK17D020 C2017 03 25.34353 20 13 25.62 -46 33 27.0 18.1 TqEF137Y00
Observer details:
W88 Slooh.com Chile Observatory, La Dehesa. Observers W. F. Cashwell,
B. Lutkenhoner. 0.35-m f/11 Schmidt-Cassegrain + CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel,
J. Barros. Measurer C. Jacques. 0.45-m f/2.9 reflector + CCD.
Orbital elements:
C/2017 D2 (Barros)
Epoch 2017 July 26.0 TT = JDT 2457960.5
T 2017 July 14.88358 TT MPCW
q 2.4826531 (2000.0) P Q
z +0.0030424 Peri. 334.49983 +0.61074854 +0.75069802
+/-0.0008391 Node 330.97850 -0.60803404 +0.24086695
e 0.9924469 Incl. 31.27679 -0.50722858 +0.61517119
From 66 observations 2017 Feb. 23-Mar. 25, mean residual 0".4.
C/2017 D2 (Barros)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 July 14.87756 TT MPCW
q 2.4826850 (2000.0) P Q
z +0.0030944 Peri. 334.49715 +0.61070571 +0.75073013
+/-0.0008391 Node 330.97786 -0.60804917 +0.24082577
e 0.9923177 Incl. 31.27721 -0.50726200 +0.61514813
From 66 observations 2017 Feb. 23-Mar. 25, mean residual 0".4.
Ephemeris:
C/2017 D2 (Barros)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2017 02 24 19 04 26.2 -48 10 43 3.3151 2.9060 57.5 16.7 18.2
...
2017 03 11 19 40 42.6 -47 31 15 3.1042 2.8275 64.8 18.5 18.0
...
2017 03 19 19 59 14.5 -47 01 11 2.9906 2.7881 68.7 19.4 17.8
...
2017 03 25 20 12 40.1 -46 35 01 2.9053 2.7599 71.7 20.1 17.7
2017 03 26 20 14 51.7 -46 30 23 2.8910 2.7553 72.2 20.2 17.7
2017 03 27 20 17 02.5 -46 25 40 2.8768 2.7507 72.7 20.3 17.7
...
2017 04 02 20 29 49.4 -45 55 53 2.7915 2.7239 75.8 20.8 17.6
...
2017 04 10 20 46 00.9 -45 12 35 2.6783 2.6900 79.9 21.5 17.4
...
2017 04 25 21 13 23.7 -43 43 00 2.4690 2.6324 87.9 22.5 17.2
Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-F137
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