[Iaude] MPEC P88: COMET P/2018 L4 (PANSTARRS)

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Mon Aug 13 15:19:19 EDT 2018


M.P.E.C. 2018-P88                                Issued 2018 Aug. 13, 19:14 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 L4 (PANSTARRS)
 
Observations:
    PK18L040 9C2018 07 01.90542 17 20 50.80 +24 05 58.8                UEP088G40
    PK18L040 9C2018 07 01.95057 17 20 50.34 +24 05 04.9          19.1 TUEP088G40
    PK18L040 KC2018 07 02.05443 17 20 49.01 +24 02 58.1          19.4 RcEP088B96
    PK18L040 KC2018 07 02.06260 17 20 49.05 +24 02 49.0          19.7 RcEP088B96
    PK18L040 KC2018 07 02.87764 17 20 43.73 +23 46 31.3          19.7 NqEP088A71
    PK18L040 KC2018 07 02.88481 17 20 43.67 +23 46 22.9          19.8 NqEP088A71
    PK18L040 KC2018 07 03.05317 17 20 42.38 +23 42 56.1          19.2 RcEP088B96
    PK18L040 KC2018 07 03.05889 17 20 42.32 +23 42 48.8          19.3 RcEP088B96
    PK18L040 KC2018 07 03.06379 17 20 42.29 +23 42 42.5          19.3 RcEP088B96
    PK18L040 KC2018 07 03.90294 17 20 37.98 +23 25 19.1          20.2 NqEP088K77
    PK18L040 KC2018 07 03.90583 17 20 38.00 +23 25 14.9          20.1 NqEP088K77
    PK18L040 KC2018 07 07.06813 17 20 29.04 +22 15 13.0          19.4 RcEP088B96
    PK18L040 KC2018 07 07.07467 17 20 28.92 +22 15 04.4          19.5 RcEP088B96
    PK18L040 KC2018 07 07.08121 17 20 28.97 +22 14 55.4          19.6 RcEP088B96
    PK18L040 KC2018 07 12.22194 17 20 48.44 +20 06 54.4          19.4 NqEP088850
    PK18L040 KC2018 07 12.24697 17 20 48.70 +20 06 13.8          19.4 NqEP088850
    PK18L040 KC2018 07 12.26646 17 20 48.76 +20 05 43.3          19.4 NqEP088850
    PK18L040 KC2018 07 12.87212 17 20 54.51 +19 49 31.3          19.9 NqEP088A71
    PK18L040 KC2018 07 12.88347 17 20 54.55 +19 49 13.2          19.7 NqEP088A71
    PK18L040 KC2018 07 12.98481 17 20 55.18 +19 46 27.8          19.8 ToEP088461
    PK18L040 KC2018 07 12.98969 17 20 55.25 +19 46 19.7          19.2 ToEP088461
    PK18L040 KC2018 07 12.99457 17 20 55.28 +19 46 11.5          19.3 ToEP088461
    PK18L040 KC2018 07 13.59861 17 21 01.52 +19 29 49.7          19.1 TqEP088Q11
    PK18L040 KC2018 07 13.60288 17 21 01.56 +19 29 42.7                qEP088Q11
    PK18L040 KC2018 07 13.61179 17 21 01.61 +19 29 27.9                qEP088Q11
    PK18L040 KC2018 07 13.91741 17 21 05.16 +19 21 00.6          19.2 VqEP088215
    PK18L040 KC2018 07 13.91998 17 21 05.17 +19 20 57.3          19.7 VqEP088215
    PK18L040 KC2018 07 13.92255 17 21 05.15 +19 20 53.8          19.7 VqEP088215
    PK18L040  C2018 07 16.39624 17 21 38.802+18 11 07.30         19.7 wUEP088F52
    PK18L040  C2018 07 16.40657 17 21 38.920+18 10 49.53         19.9 wUEP088F52
    PK18L040  C2018 07 16.41659 17 21 39.058+18 10 31.90         19.5 wUEP088F52
    PK18L040  C2018 07 16.42667 17 21 39.175+18 10 14.33         19.9 wUEP088F52
    PK18L040 KC2018 07 18.93587 17 22 26.06 +16 55 57.1          19.8 RcEP088B96
    PK18L040 KC2018 07 18.94077 17 22 26.13 +16 55 49.3          19.6 RcEP088B96
    PK18L040 KC2018 07 18.94568 17 22 26.19 +16 55 39.1          19.7 RcEP088B96
    PK18L040 KC2018 08 10.86212 17 39 32.06 +04 02 44.5          20.3 NUEP088K87
    PK18L040 KC2018 08 10.86596 17 39 32.31 +04 02 36.3          20.4 NUEP088K87
    PK18L040 KC2018 08 10.87679 17 39 32.99 +04 02 11.9          20.1 NUEP088K87
    PK18L040 KC2018 08 10.87818 17 39 33.10 +04 02 09.5          20.8 NUEP088K87
    PK18L040 KC2018 08 10.88066 17 39 33.24 +04 02 04.2          20.5 NUEP088K87
 
Observer details:
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
461 University of Szeged, Piszkesteto Stn. (Konkoly).  Observers A. Bodi,
    A. Pal, A. Ordasi, K. Sarneczky.  Measurer K. Sarneczky.  0.60-m
    Schmidt + CCD.
850 Cordell-Lorenz Observatory, Sewanee.  Observer D. T. Durig.  0.3-m f/9.4
    Schmidt-Cassegrain + 3072x2048 CCD.
A71 Stixendorf.  Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
    Measurer M. Jaeger.  0.3-m f/4 reflector + CCD.
B96 Brixiis Observatory, Kruibeke.  Observer E. Bryssinck.  0.4-m f/3.8
    astrograph + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe,
    A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
    H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat,
    C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G40 Slooh.com Canary Islands Observatory.  Observer B. Lutkenhoner.  0.5-m
    f/6.8 Corrected Dall-Kirkham + CCD.
K77 EHB01 Observatory, Engelhardsberg.  Observer R. Fichtl.  0.40-m f/2.6
    reflector + CCD.
K87 Dettelbach Vineyard Observatory.  Observer B. Haeusler.  0.30-m
    Schmidt-Cassegrain + CCD.
Q11 Shinshiro.  Observer T. Ikemura.  Measurer H. Sato.  0.35-m f/5 reflector
    + CCD.
 
Orbital elements:
    P/2018 L4 (PANSTARRS)
Epoch 2018 July 21.0 TT = JDT 2458320.5
T 2018 July 31.84645 TT                                 MPCW
q   1.6762375            (2000.0)            P               Q
n   0.08990094     Peri.  140.43545     +0.30793692     +0.91636652
a   4.9350691      Node   145.19184     -0.94623052     +0.32299290
e   0.6603416      Incl.   26.62605     -0.09910934     -0.23653326
P  10.96
>From 117 observations 2018 May 19-Aug. 10, mean residual 0".5.

    P/2018 L4 (PANSTARRS)
Epoch 2029 Aug. 12.0 TT = JDT 2462360.5
T 2029 July 23.22153 TT                                 MPCW
q   1.7506927            (2000.0)            P               Q
n   0.08657530     Peri.  138.72949     +0.27594733     +0.92669246
a   5.0606546      Node   144.95120     -0.95644055     +0.29104594
e   0.6540581      Incl.   26.37697     -0.09526046     -0.23776743
P  11.38
>From 117 observations 2018 May 19-Aug. 10, mean residual 0".5.

    P/2018 L4 (PANSTARRS)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 July 31.84390 TT                                 MPCW
q   1.6762141            (2000.0)            P               Q
n   0.08987330     Peri.  140.42952     +0.30794642     +0.91637597
a   4.9360807      Node   145.19848     -0.94623113     +0.32299236
e   0.6604160      Incl.   26.62575     -0.09907393     -0.23649738
P  10.97
>From 117 observations 2018 May 19-Aug. 10, mean residual 0".5.

Ephemeris:
    P/2018 L4 (PANSTARRS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2018 07 14    17 21 06.2 +19 18 52   0.8596  1.6873   127.9    28.4  19.4
...
2018 07 29    17 27 42.4 +11 31 33   0.8700  1.6765   125.4    29.6  19.4
...
2018 08 06    17 34 23.8 +06 54 11   0.8904  1.6772   123.3    30.4  19.5
...
2018 08 12    17 40 51.1 +03 22 52   0.9132  1.6805   121.4    31.0  19.6
2018 08 13    17 42 02.7 +02 47 47   0.9176  1.6814   121.0    31.1  19.6
2018 08 14    17 43 16.2 +02 12 48   0.9222  1.6822   120.7    31.2  19.6
...
2018 08 20    17 51 17.8 -01 13 46   0.9535  1.6889   118.4    31.8  19.7
...
2018 08 28    18 03 39.4 -05 35 06   1.0053  1.7016   115.2    32.5  19.8
...
2018 09 12    18 31 09.0 -12 39 20   1.1315  1.7364   108.5    33.4  20.2

Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-P88



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