[Iaude] MPEC C77: COMET P/2018 C1 (Lemmon-Read)
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Feb 10 21:17:18 EST 2018
M.P.E.C. 2018-C77 Issued 2018 Feb. 11, 02:12 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2018 C1 (Lemmon-Read)
Observations:
PK18C010 C2018 01 16.41712 09 33 28.898+08 51 39.06 20.6 TUEC077F51
PK18C010 C2018 01 16.44082 09 33 28.305+08 51 37.39 20.6 TUEC077F51
PK18C010 C2018 01 16.45267 09 33 28.010+08 51 36.62 20.6 TUEC077F51
PK18C010 C2018 02 04.41871 09 23 33.88 +08 50 22.5 19.1 TUEC077G96
PK18C010 C2018 02 04.42384 09 23 33.66 +08 50 22.6 18.9 TUEC077G96
PK18C010 C2018 02 04.45096 09 23 32.65 +08 50 24.1 19.2 TUEC077G96
PK18C010 C2018 02 04.45610 09 23 32.44 +08 50 24.4 18.7 TUEC077G96
PK18C010 C2018 02 07.27448 09 21 49.09 +08 53 04.6 19.4 TUEC077I41
PK18C010 C2018 02 07.29779 09 21 48.17 +08 53 05.3 19.4 TUEC077I41
PK18C010 C2018 02 07.33676 09 21 46.67 +08 53 08.1 19.4 TUEC077I41
PK18C010 C2018 02 09.28482 09 20 34.77 +08 55 18.6 18.4 TUEC077703
PK18C010 C2018 02 09.28990 09 20 34.45 +08 55 19.0 19.1 ToEC077691
PK18C010 C2018 02 09.29003 09 20 34.53 +08 55 18.9 18.5 TUEC077703
PK18C010 C2018 02 09.29524 09 20 34.29 +08 55 19.7 18.6 TUEC077703
PK18C010 C2018 02 09.29816 09 20 34.26 +08 55 19.1 19.5 TUEC077I41
PK18C010 C2018 02 09.30045 09 20 34.11 +08 55 20.2 18.4 TUEC077703
PK18C010 C2018 02 09.30549 09 20 33.90 +08 55 20.4 19.1 ToEC077691
PK18C010 C2018 02 09.32107 09 20 33.31 +08 55 21.3 19.3 ToEC077691
PK18C010 C2018 02 09.33330 09 20 32.90 +08 55 21.6 19.5 TUEC077I41
PK18C010 C2018 02 09.35277 09 20 32.13 +08 55 22.7 19.6 TUEC077I41
PK18C010 C2018 02 09.35573 09 20 32.03 +08 55 23.1 19.6 TUEC077I41
PK18C010 C2018 02 09.37553 09 20 31.27 +08 55 24.7 19.6 TUEC077I41
PK18C010 C2018 02 10.13873 09 20 03.41 +08 56 19.3 18.8 TUEC077I52
PK18C010 C2018 02 10.15009 09 20 03.01 +08 56 20.6 18.9 TUEC077I52
PK18C010 C2018 02 10.16153 09 20 02.59 +08 56 21.3 18.5 TUEC077I52
PK18C010 |C2018 02 10.26532 09 19 58.61 +08 56 29.7 vEC077H06
PK18C010 |C2018 02 10.26771 09 19 58.53 +08 56 30.0 vEC077H06
PK18C010 |C2018 02 10.27010 09 19 58.45 +08 56 29.9 19.0 TvEC077H06
PK18C010 KC2018 02 10.27310 09 19 58.24 +08 56 30.7 18.7 ToEC077291
PK18C010 KC2018 02 10.27983 09 19 58.02 +08 56 31.0 18.7 ToEC077291
PK18C010 KC2018 02 10.28654 09 19 57.79 +08 56 31.4 18.7 ToEC077291
PK18C010 KC2018 02 10.31175 09 19 56.82 +08 56 32.7 19.2 ToEC077291
PK18C010 KC2018 02 10.32070 09 19 56.47 +08 56 33.4 19.0 ToEC077291
PK18C010 KC2018 02 10.32967 09 19 56.12 +08 56 34.0 19.0 ToEC077291
PK18C010 KC2018 02 10.87977 09 19 36.08 +08 57 14.1 19.0 TqEC077C77
PK18C010 KC2018 02 10.90348 09 19 35.16 +08 57 15.6 18.7 TqEC077C77
PK18C010 KC2018 02 10.92837 09 19 34.21 +08 57 17.8 19.9 TqEC077C77
PK18C010 KC2018 02 10.93062 09 19 34.12 +08 57 18.1 19.1 TUEC077203
PK18C010 KC2018 02 10.93205 09 19 34.04 +08 57 17.5 18.1 TqEC077595
PK18C010 KC2018 02 10.94340 09 19 33.61 +08 57 18.4 qEC077595
PK18C010 KC2018 02 10.94843 09 19 33.39 +08 57 19.4 18.6 TUEC077203
PK18C010 KC2018 02 10.95475 09 19 33.17 +08 57 19.7 18.5 TqEC077595
Observer details:
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.28-m f/6.8 Schmidt-Cassegrain + CCD.
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
595 Farra d'Isonzo. Observers U. Montanar, E. Pettarin, F. Piani. Measurer
E. Pettarin. 0.61-m f/4.0 reflector + CCD.
691 Steward Observatory, Kitt Peak. Observers M. T. Read, M. T. R ed. 0.9-m
f// reflector + CCD, 0.9-m f/3 reflector + CCD.
703 Catalina Sky Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
0.68-m Schmidt + 10K CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/4.0 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer J. A. Johnson. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
H06 iTelescope Observatory, Mayhill. Observer H. Sato. 0.43-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
I41 Palomar Mountain--ZTF. Measurers Q.-Z. Ye, F. Masci. 1.2-m f/2.44 Oschin
Schmidt + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. A. Johnson.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
Orbital elements:
P/2018 C1 (Lemmon-Read)
Epoch 2018 Feb. 11.0 TT = JDT 2458160.5
T 2018 Feb. 25.15426 TT MPCW
q 2.5944328 (2000.0) P Q
n 0.07494662 Peri. 234.24007 -0.81250242 -0.57606110
a 5.5714469 Node 270.42174 +0.55955467 -0.72763862
e 0.5343341 Incl. 5.12958 +0.16351879 -0.37241866
P 13.15
>From 42 observations 2018 Jan. 16-Feb. 10, mean residual 0".4.
P/2018 C1 (Lemmon-Read)
Epoch 2031 Aug. 2.0 TT = JDT 2463080.5
T 2031 July 26.93412 TT MPCW
q 2.6405384 (2000.0) P Q
n 0.07372759 Peri. 236.18809 -0.82539382 -0.55752275
a 5.6326922 Node 269.77524 +0.54288785 -0.74064051
e 0.5312120 Incl. 5.09720 +0.15491234 -0.37499336
P 13.37
>From 42 observations 2018 Jan. 16-Feb. 10, mean residual 0".4.
P/2018 C1 (Lemmon-Read)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 Feb. 25.16266 TT MPCW
q 2.5944343 (2000.0) P Q
n 0.07494549 Peri. 234.24271 -0.81252702 -0.57602642
a 5.5715033 Node 270.42155 +0.55952359 -0.72766266
e 0.5343386 Incl. 5.12956 +0.16350287 -0.37242532
P 13.15
>From 42 observations 2018 Jan. 16-Feb. 10, mean residual 0".4.
Ephemeris:
P/2018 C1 (Lemmon-Read)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2018 01 12 09 34 59.4 +08 57 47 1.7307 2.6172 148.0 11.5 18.9
...
2018 01 27 09 28 28.5 +08 46 24 1.6436 2.6044 164.0 6.0 18.7
...
2018 02 04 09 23 49.3 +08 50 04 1.6204 2.5997 171.7 3.1 18.7
...
2018 02 10 09 20 08.3 +08 56 12 1.6142 2.5971 173.6 2.4 18.7
2018 02 11 09 19 31.5 +08 57 27 1.6142 2.5968 173.2 2.6 18.7
2018 02 12 09 18 54.9 +08 58 44 1.6143 2.5965 172.7 2.8 18.7
...
2018 02 18 09 15 22.3 +09 07 24 1.6211 2.5950 167.6 4.7 18.7
...
2018 02 26 09 11 13.9 +09 20 07 1.6447 2.5944 159.3 7.8 18.7
...
2018 03 13 09 06 31.0 +09 41 12 1.7300 2.5974 143.5 13.1 18.8
Gareth V. Williams (C) Copyright 2018 MPC M.P.E.C. 2018-C77
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