MPEC 2017-F209: COMET C/2017 E4 (Lovejoy)
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M.P.E.C. 2017-F209 Issued 2017 Mar. 30, 16:09 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 E4 (Lovejoy)
Observations:
CK17E040 C2017 03 14.30720 19 16 24.27 -28 01 10.3 16.5 TqEF209Y00
CK17E040 C2017 03 14.30810 19 16 24.60 -28 01 05.5 16.4 TqEF209Y00
CK17E040 C2017 03 14.30900 19 16 24.87 -28 01 01.9 16.3 TqEF209Y00
CK17E040 KC2017 03 14.35951 19 16 43.05 -27 57 09.7 16.5 NqEF209I47
CK17E040 KC2017 03 14.37142 19 16 47.18 -27 56 16.5 16.4 NqEF209I47
CK17E040 KC2017 03 14.37411 19 16 48.17 -27 56 03.9 16.6 NqEF209I47
CK17E040 KC2017 03 14.37526 19 16 48.58 -27 55 58.8 16.5 NqEF209I47
CK17E040 KC2017 03 14.37642 19 16 49.05 -27 55 53.4 16.6 NqEF209I47
CK17E040 3C2017 03 15.30926 19 22 26.93 -26 43 05.6 15.9 NUEF209W88
CK17E040 3C2017 03 15.32319 19 22 31.99 -26 41 57.9 15.6 NUEF209W88
CK17E040 3C2017 03 15.33734 19 22 37.27 -26 40 50.3 15.7 NUEF209W88
CK17E040 C2017 03 15.81961 19 25 35.90 -26 01 26.7 mEF209349
CK17E040 C2017 03 15.82267 19 25 37.07 -26 01 11.4 mEF209349
CK17E040 C2017 03 15.82571 19 25 38.15 -26 00 55.7 12.3 TmEF209349
CK17E040 KC2017 03 16.31988 19 28 44.83 -25 18 48.1 16.6 NqEF209W96
CK17E040 KC2017 03 16.34420 19 28 54.09 -25 16 42.0 16.2 NqEF209W96
CK17E040 KC2017 03 16.35569 19 28 58.35 -25 15 42.8 16.4 NqEF209W96
CK17E040 KC2017 03 16.38101 19 29 08.08 -25 13 28.2 16.5 NqEF209I47
CK17E040 KC2017 03 16.39044 19 29 11.65 -25 12 39.2 16.4 NqEF209I47
CK17E040 KC2017 03 16.40035 19 29 15.34 -25 11 47.8 16.3 NqEF209I47
CK17E040 KC2017 03 16.83683 19 32 02.76 -24 33 32.0 uEF209367
CK17E040 KC2017 03 16.83943 19 32 03.80 -24 33 18.2 uEF209367
CK17E040 KC2017 03 16.84539 19 32 06.10 -24 32 46.1 13.0 TuEF209367
CK17E040 5C2017 03 17.36502 19 35 29.18 -23 45 12.5 tEF209W88
CK17E040 5C2017 03 17.36847 19 35 30.47 -23 44 53.7 tEF209W88
CK17E040 5C2017 03 17.38255 19 35 36.04 -23 43 35.4 tEF209W88
CK17E040 KC2017 03 18.34227 19 42 00.69 -22 11 28.6 16.3 NqEF209I47
CK17E040 KC2017 03 18.34699 19 42 02.50 -22 11 01.6 16.3 NqEF209I47
CK17E040 KC2017 03 18.35171 19 42 04.49 -22 10 32.3 16.2 NqEF209I47
CK17E040 C2017 03 18.81016 19 45 12.52 -21 24 38.4 mEF209349
CK17E040 C2017 03 18.81275 19 45 13.60 -21 24 22.8 mEF209349
CK17E040 C2017 03 18.81536 19 45 14.65 -21 24 06.6 11.8 TmEF209349
CK17E040 5C2017 03 19.36775 19 49 05.39 -20 26 26.0 14.8 NqEF209W88
CK17E040 5C2017 03 19.37307 19 49 07.58 -20 25 52.4 14.8 NqEF209W88
CK17E040 5C2017 03 19.37428 19 49 08.10 -20 25 44.8 14.7 NqEF209W88
CK17E040 5C2017 03 19.37775 19 49 09.55 -20 25 22.9 14.7 NqEF209W88
CK17E040 5C2017 03 19.38144 19 49 11.09 -20 24 59.5 14.8 NqEF209W88
CK17E040 C2017 03 19.79232 19 52 05.53 -19 41 03.7 11.2 TqEF209D95
CK17E040 C2017 03 19.79555 19 52 06.76 -19 40 41.0 qEF209D95
CK17E040 C2017 03 19.79879 19 52 08.16 -19 40 20.9 qEF209D95
CK17E040 C2017 03 19.79986 19 52 08.64 -19 40 13.1 qEF209D95
CK17E040 WC2017 03 20.47880 19 57 02.51 -18 24 41.2 14.3 NqEF209H06
CK17E040 WC2017 03 20.47927 19 57 02.76 -18 24 38.0 14.3 NqEF209H06
CK17E040 WC2017 03 20.47975 19 57 02.96 -18 24 34.4 14.4 NqEF209H06
CK17E040 WC2017 03 20.48023 19 57 03.05 -18 24 30.7 14.4 NqEF209H06
CK17E040 WC2017 03 20.48071 19 57 03.34 -18 24 27.5 14.3 NqEF209H06
CK17E040 WC2017 03 20.48117 19 57 03.50 -18 24 24.6 14.3 NqEF209H06
CK17E040 tC2017 03 21.33192 20 03 21.19 -16 44 59.3 14.6 TqEF209Y00
CK17E040 tC2017 03 21.33292 20 03 21.63 -16 44 51.9 14.6 TqEF209Y00
CK17E040 tC2017 03 21.33385 20 03 22.06 -16 44 44.7 14.5 TqEF209Y00
CK17E040 tC2017 03 21.33528 20 03 22.75 -16 44 34.7 14.6 TqEF209Y00
CK17E040 tC2017 03 21.33618 20 03 23.12 -16 44 28.3 14.6 TqEF209Y00
CK17E040 tC2017 03 21.33709 20 03 23.50 -16 44 22.1 14.6 TqEF209Y00
CK17E040 C2017 03 24.33653 20 27 04.80 -10 13 18.2 14.0 TqEF209Y00
CK17E040 C2017 03 24.33698 20 27 05.03 -10 13 14.3 13.9 TqEF209Y00
CK17E040 C2017 03 24.33742 20 27 05.07 -10 13 10.0 14.0 TqEF209Y00
CK17E040 @C2017 03 24.50443 20 28 28.68 -09 49 45.4 14.6 NUEF209695
CK17E040 @C2017 03 24.50606 20 28 29.45 -09 49 32.1 14.6 NUEF209695
CK17E040 @C2017 03 24.50769 20 28 30.33 -09 49 17.7 14.6 NUEF209695
CK17E040 @C2017 03 24.50929 20 28 31.06 -09 49 05.1 14.5 NUEF209695
CK17E040 @C2017 03 24.51091 20 28 31.93 -09 48 50.6 14.5 NUEF209695
CK17E040 @C2017 03 24.51331 20 28 33.10 -09 48 30.7 14.6 NUEF209695
CK17E040 @C2017 03 24.51492 20 28 33.95 -09 48 16.4 14.5 NUEF209695
CK17E040 @C2017 03 24.51654 20 28 34.71 -09 48 02.5 14.5 NUEF209695
CK17E040 @C2017 03 24.51815 20 28 35.53 -09 47 49.0 14.6 NUEF209695
CK17E040 @C2017 03 24.51977 20 28 36.33 -09 47 35.3 14.6 NUEF209695
CK17E040 @C2017 03 24.52139 20 28 37.13 -09 47 21.4 14.7 NUEF209695
CK17E040 @C2017 03 24.52301 20 28 37.90 -09 47 08.2 14.7 NUEF209695
CK17E040 KC2017 03 25.15154 20 33 55.61 -08 16 42.7 14.2 NqEF209157
CK17E040 KC2017 03 25.15226 20 33 55.98 -08 16 36.2 13.9 NqEF209157
CK17E040 KC2017 03 25.15299 20 33 56.34 -08 16 29.9 13.9 NqEF209157
CK17E040 KC2017 03 25.15370 20 33 56.72 -08 16 23.4 14.1 NqEF209157
CK17E040 KC2017 03 25.36997 20 35 47.55 -07 44 25.6 14.2 NqEF209I47
CK17E040 KC2017 03 25.37266 20 35 48.94 -07 44 02.1 14.3 NqEF209I47
CK17E040 KC2017 03 25.37528 20 35 50.26 -07 43 38.9 14.2 NqEF209I47
CK17E040 |C2017 03 26.49086 20 45 33.72 -04 56 06.6 vEF209H06
CK17E040 |C2017 03 26.49111 20 45 33.88 -04 56 04.4 9.8 TvEF209H06
Observer details:
157 Frasso Sabino. Observers R. Haver, R. Gorelli. Measurer R. Haver.
0.37-m f/6.70 Cassegrain + 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.
D95 Kurihara. Observer T. Takahashi. 0.25-m f/4.2 reflector + CCD.
H06 iTelescope Observatory, Mayhill. Observers M. Mattiazzo, H. Sato. 0.50-m
f/6.8 astrograph + CCD + f/4.5 focal reducer, 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.
W88 Slooh.com Chile Observatory, La Dehesa. Observers G. Gasparovic,
M. Kumrucu-Lohmiller. Measurers B. Lutkenhoner, M. Kumrucu-Lohmiller.
0.35-m f/11 Schmidt-Cassegrain + CCD.
W96 CAO, San Pedro de Atacama (since 2013). Observers A. Maury, J.-B. de
Vanssay, J.-F. Soulier. Measurer J.-F. Soulier. 0.4-m f/8
Ritchey-Chretien + 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 E4 (Lovejoy)
Epoch 2017 May 7.0 TT = JDT 2457880.5
T 2017 Apr. 23.30965 TT MPCW
q 0.4935988 (2000.0) P Q
z +0.0014660 Peri. 87.23413 -0.01347347 +0.72948999
+/-0.0009160 Node 223.17307 -0.44864387 +0.60680293
e 0.9992764 Incl. 88.17887 +0.89360905 +0.31564942
From 172 observations 2017 Mar. 9-25, mean residual 0".8.
C/2017 E4 (Lovejoy)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Apr. 23.30945 TT MPCW
q 0.4935967 (2000.0) P Q
z +0.0014599 Peri. 87.23389 -0.01346977 +0.72949038
+/-0.0009160 Node 223.17306 -0.44865302 +0.60680059
e 0.9992794 Incl. 88.17830 +0.89360452 +0.31565304
From 172 observations 2017 Mar. 9-25, mean residual 0".8.
Ephemeris:
C/2017 E4 (Lovejoy)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2017 02 28 18 07 12.8 -39 29 45 1.2245 1.2664 68.8 46.8 18.5
...
2017 03 15 19 20 32.9 -27 07 53 0.8281 1.0094 66.5 64.6 16.6
...
2017 03 23 20 16 13.1 -13 15 29 0.6684 0.8713 59.3 79.5 15.5
...
2017 03 29 21 08 37.1 +01 41 44 0.6091 0.7698 50.4 92.0 14.8
2017 03 30 21 18 15.2 +04 24 51 0.6064 0.7532 48.8 93.9 14.7
2017 03 31 21 28 07.2 +07 08 20 0.6061 0.7369 47.2 95.6 14.6
...
2017 04 06 22 30 58.1 +22 07 52 0.6527 0.6436 39.1 101.1 14.2
...
2017 04 14 23 55 10.4 +34 00 52 0.8236 0.5429 32.7 92.1 13.9
...
2017 04 29 01 50 23.7 +35 15 30 1.2740 0.5127 22.3 48.1 14.6
Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-F209
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