[Iaude] MPEC F10: COMET C/2018 E1 (ATLAS)

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 16 14:43:17 EDT 2018


M.P.E.C. 2018-F10                                Issued 2018 Mar. 16, 18:37 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 C/2018 E1 (ATLAS)
 
Observations:
    CK18E010  C2015 08 11.46806 22 15 26.994-16 43 59.95         23.1 TLEF010F51
    CK18E010  C2015 08 11.49190 22 15 26.444-16 44 06.31         22.9 TLEF010F51
    CK18E010  C2015 08 11.50377 22 15 26.188-16 44 09.08         23.2 TLEF010F51
    CK18E010  C2015 08 12.47350 22 15 03.535-16 48 24.84         22.7 TLEF010F51
    CK18E010  C2015 08 12.48541 22 15 03.272-16 48 28.49         23.3 TLEF010F51
    CK18E010  C2015 10 03.28579 21 55 02.699-20 13 05.50         22.9 TLEF010F51
    CK18E010  C2015 10 03.29676 21 55 02.526-20 13 07.62         23.2 TLEF010F51
    CK18E010  C2015 10 03.30775 21 55 02.303-20 13 09.20         23.2 TLEF010F51
    CK18E010  C2016 08 06.54802 23 12 32.838-29 43 15.39         21.4 TLEF010F51
    CK18E010  C2016 08 06.55812 23 12 32.602-29 43 20.47         21.6 TLEF010F51
    CK18E010  C2016 08 06.56821 23 12 32.333-29 43 25.68         22.1 TLEF010F51
    CK18E010  C2016 08 09.50328 23 11 18.648-30 08 58.29         22.0 TLEF010F51
    CK18E010  C2016 08 09.51229 23 11 18.420-30 09 02.87         22.1 TLEF010F51
    CK18E010  C2016 08 09.52128 23 11 18.163-30 09 07.53         22.2 TLEF010F51
    CK18E010  C2016 08 09.53027 23 11 17.924-30 09 12.23         21.8 TLEF010F51
    CK18E010  C2016 09 06.38346 22 56 14.947-33 58 15.63         21.8 TLEF010F51
    CK18E010  C2016 09 06.39118 22 56 14.671-33 58 19.02         21.6 TLEF010F51
    CK18E010  C2016 09 06.39891 22 56 14.374-33 58 22.40         21.8 TLEF010F51
    CK18E010  C2016 09 06.40663 22 56 14.094-33 58 25.94         21.8 TLEF010F51
    CK18E010  C2016 10 18.26629 22 33 16.002-37 23 13.35         21.1 TLEF010F51
    CK18E010  C2016 10 18.28172 22 33 15.612-37 23 15.76         21.5 TLEF010F51
    CK18E010  C2016 10 18.29098 22 33 15.428-37 23 17.04         20.8 TLEF010F51
    CK18E010* C2018 03 10.22671 04 35 56.46 -44 05 01.2          16.8 TUEF010T05
    CK18E010  C2018 03 10.22857 04 35 56.64 -44 04 58.5          17.6 TUEF010T05
    CK18E010  C2018 03 10.23184 04 35 56.96 -44 04 53.7          16.9 TUEF010T05
    CK18E010  C2018 03 10.23275 04 35 57.05 -44 04 52.4          16.9 TUEF010T05
    CK18E010  C2018 03 10.23321 04 35 57.12 -44 04 51.4          16.9 TUEF010T05
    CK18E010  C2018 03 10.24695 04 35 58.42 -44 04 30.4          17.6 TUEF010T05
    CK18E010  C2018 03 10.24787 04 35 58.58 -44 04 28.7          17.0 TUEF010T05
    CK18E010  C2018 03 10.24878 04 35 58.70 -44 04 27.6          16.9 TUEF010T05
    CK18E010 |C2018 03 11.04740 04 37 21.16 -43 44 13.0          17.7 TUEF010807
    CK18E010 |C2018 03 11.04863 04 37 21.28 -43 44 11.3          17.8 TUEF010807
    CK18E010 |C2018 03 11.04985 04 37 21.41 -43 44 09.4          17.8 TUEF010807
    CK18E010 |C2018 03 11.05106 04 37 21.52 -43 44 07.6          17.8 TUEF010807
    CK18E010 |C2018 03 11.05227 04 37 21.65 -43 44 05.7          17.7 TUEF010807
    CK18E010 JC2018 03 11.39978 04 37 57.71 -43 35 17.8          16.8 ToEF010Q62
    CK18E010 JC2018 03 11.40068 04 37 57.81 -43 35 16.4          16.9 ToEF010Q62
    CK18E010 JC2018 03 11.40154 04 37 57.91 -43 35 15.1          16.8 ToEF010Q62
    CK18E010 KC2018 03 11.40166 04 37 57.94 -43 35 14.7          17.5 TqEF010E23
    CK18E010 1C2018 03 11.40172 04 37 57.92 -43 35 15.0                vEF010Q62
    CK18E010 [C2018 03 11.40332 04 37 58.11 -43 35 12.7          17.6 TqEF010Q62
    CK18E010 1C2018 03 11.40336 04 37 58.08 -43 35 12.5                vEF010Q62
    CK18E010 1C2018 03 11.40499 04 37 58.26 -43 35 10.1          16.9 TvEF010Q62
    CK18E010 [C2018 03 11.40503 04 37 58.28 -43 35 09.6          17.5 TqEF010Q62
    CK18E010 KC2018 03 11.40513 04 37 58.28 -43 35 09.4          17.7 TqEF010E23
    CK18E010 [C2018 03 11.40673 04 37 58.44 -43 35 07.6          17.5 TqEF010Q62
    CK18E010 KC2018 03 11.40860 04 37 58.65 -43 35 04.1          17.5 TqEF010E23
    CK18E010 KC2018 03 11.41207 04 37 58.99 -43 34 58.9          17.6 TqEF010E23
    CK18E010 KC2018 03 11.41555 04 37 59.35 -43 34 53.6          17.5 TqEF010E23
    CK18E010 KC2018 03 11.41902 04 37 59.72 -43 34 48.3          17.7 TqEF010E23
    CK18E010  C2018 03 11.93650 04 38 53.53 -43 21 42.1          17.9 TrEF010Y00
    CK18E010  C2018 03 11.94126 04 38 54.02 -43 21 34.8          17.8 TrEF010Y00
    CK18E010  C2018 03 11.94600 04 38 54.50 -43 21 27.5          17.8 TrEF010Y00
    CK18E010 KC2018 03 11.99774 04 38 59.81 -43 20 08.7          17.5 TqEF010X31
    CK18E010 KC2018 03 12.01334 04 39 01.41 -43 19 44.5          17.1 TqEF010I47
    CK18E010 KC2018 03 12.01754 04 39 01.82 -43 19 38.6          17.4 TqEF010X31
    CK18E010 KC2018 03 12.02042 04 39 02.14 -43 19 33.5          17.1 TqEF010I47
    CK18E010 KC2018 03 12.02769 04 39 02.89 -43 19 22.5          17.1 TqEF010I47
    CK18E010 KC2018 03 12.03086 04 39 03.18 -43 19 17.7          17.5 TqEF010X31
    CK18E010  C2018 03 12.37101 04 39 38.62 -43 10 39.3          17.6 TUEF010474
    CK18E010  C2018 03 12.37566 04 39 39.12 -43 10 32.1          17.5 TUEF010474
    CK18E010  C2018 03 12.37707 04 39 39.26 -43 10 30.1          17.5 TUEF010474
    CK18E010  C2018 03 12.37847 04 39 39.40 -43 10 27.8          17.5 TUEF010474
    CK18E010 ;C2018 03 12.41938 04 39 43.66 -43 09 26.1          17.7 TUEF010Q62
    CK18E010 ;C2018 03 12.42023 04 39 43.73 -43 09 25.2          17.4 TUEF010Q62
    CK18E010 ;C2018 03 12.42110 04 39 43.84 -43 09 23.9          17.4 TUEF010Q62
    CK18E010 ;C2018 03 12.42196 04 39 43.92 -43 09 22.4          17.6 TUEF010Q62
    CK18E010 ;C2018 03 12.42574 04 39 44.26 -43 09 15.2          17.6 TUEF010Q62
    CK18E010 0C2018 03 12.42808 04 39 44.54 -43 09 13.1          17.4 TUEF010Q62
    CK18E010 2C2018 03 12.42932 04 39 44.66 -43 09 10.9          17.8 TqEF010Q62
    CK18E010 0C2018 03 12.42978 04 39 44.70 -43 09 10.8          17.5 TUEF010Q62
    CK18E010 0C2018 03 12.43148 04 39 44.90 -43 09 07.6          17.2 TUEF010Q62
    CK18E010 2C2018 03 12.45402 04 39 47.18 -43 08 33.3          17.8 TqEF010Q62
    CK18E010  C2018 03 12.96784 04 40 40.86 -42 55 30.9          17.8 TrEF010Y00
    CK18E010  C2018 03 12.96947 04 40 41.06 -42 55 28.2          17.8 TrEF010Y00
    CK18E010  C2018 03 12.97111 04 40 41.23 -42 55 25.8          17.8 TrEF010Y00
    CK18E010  C2018 03 12.97275 04 40 41.39 -42 55 23.6          17.7 TrEF010Y00
    CK18E010  C2018 03 12.97435 04 40 41.54 -42 55 20.8          17.7 TrEF010Y00
    CK18E010  C2018 03 12.97593 04 40 41.72 -42 55 18.5          17.8 TrEF010Y00
    CK18E010 KC2018 03 13.00138 04 40 44.34 -42 54 40.2          17.2 TqEF010W96
    CK18E010 KC2018 03 13.00757 04 40 44.98 -42 54 30.6          17.4 TqEF010W96
    CK18E010 KC2018 03 13.01374 04 40 45.62 -42 54 21.1          17.2 TqEF010W96
    CK18E010 KC2018 03 13.02510 04 40 46.77 -42 54 03.6          17.3 TqEF010W96
    CK18E010 KC2018 03 13.03127 04 40 47.43 -42 53 54.2          17.3 TqEF010W96
    CK18E010 KC2018 03 13.03748 04 40 48.06 -42 53 44.7          17.3 TqEF010W96
    CK18E010 KC2018 03 13.05777 04 40 50.21 -42 53 12.7          17.0 TUEF010I39
    CK18E010 KC2018 03 13.06628 04 40 51.06 -42 52 59.5          17.3 TUEF010I39
    CK18E010 3C2018 03 13.08151 04 40 52.64 -42 52 36.7          17.4 TUEF010W88
    CK18E010 3C2018 03 13.08691 04 40 53.22 -42 52 28.4          17.4 TUEF010W88
    CK18E010 3C2018 03 13.09263 04 40 53.81 -42 52 19.7          17.5 TUEF010W88
    CK18E010  C2018 03 13.36791 04 41 22.57 -42 45 19.1          17.0 TqEF010E94
    CK18E010  C2018 03 13.37034 04 41 22.94 -42 45 15.5          17.0 TqEF010E94
    CK18E010  C2018 03 13.37278 04 41 23.08 -42 45 12.3          17.1 TqEF010E94
    CK18E010  C2018 03 13.37527 04 41 23.41 -42 45 08.5          17.1 TqEF010E94
    CK18E010  C2018 03 13.37890 04 41 23.68 -42 45 02.6          17.0 TqEF010E94
    CK18E010  C2018 03 13.38133 04 41 24.02 -42 44 59.4          17.0 TqEF010E94
    CK18E010  C2018 03 13.38383 04 41 24.26 -42 44 55.1          17.0 TqEF010E94
    CK18E010  C2018 03 13.38633 04 41 24.52 -42 44 50.0          17.1 TqEF010E94
    CK18E010  C2018 03 13.38992 04 41 24.90 -42 44 45.8          17.0 TqEF010E94
    CK18E010  C2018 03 13.39236 04 41 25.18 -42 44 42.2          17.0 TqEF010E94
    CK18E010  C2018 03 13.39486 04 41 25.36 -42 44 38.3          17.0 TqEF010E94
    CK18E010  C2018 03 13.39736 04 41 25.65 -42 44 34.2          17.0 TqEF010E94
    CK18E010 KC2018 03 14.00247 04 42 29.05 -42 29 11.9          17.0 TqEF010I47
    CK18E010 |C2018 03 14.00293 04 42 29.07 -42 29 11.2          17.8 TUEF010807
    CK18E010 |C2018 03 14.00473 04 42 29.26 -42 29 08.7          17.4 TUEF010807
    CK18E010 |C2018 03 14.00699 04 42 29.49 -42 29 05.0          17.4 TUEF010807
    CK18E010 |C2018 03 14.00925 04 42 29.72 -42 29 01.5          17.4 TUEF010807
    CK18E010 KC2018 03 14.00967 04 42 29.81 -42 29 00.6          17.0 TqEF010I47
    CK18E010 KC2018 03 14.01726 04 42 30.57 -42 28 48.9          17.0 TqEF010I47
    CK18E010 2C2018 03 14.39931 04 43 10.67 -42 19 05.3          17.7 TqEF010Q62
    CK18E010 2C2018 03 14.40519 04 43 11.26 -42 18 56.4          17.8 TqEF010Q62
    CK18E010 2C2018 03 14.40638 04 43 11.41 -42 18 54.7          17.6 TqEF010Q62
    CK18E010 NC2018 03 14.42091 04 43 12.88 -42 18 32.5          17.2 TqEF010Q62
    CK18E010 AC2018 03 14.42212 04 43 12.99 -42 18 30.3          17.0 TUEF010Q62
    CK18E010 AC2018 03 14.42594 04 43 13.38 -42 18 24.3          17.0 TUEF010Q62
    CK18E010 NC2018 03 14.42676 04 43 13.44 -42 18 23.7          17.4 TqEF010Q62
    CK18E010 *C2018 03 14.42890 04 43 13.68 -42 18 20.5          18.0 TtEF010E10
    CK18E010 NC2018 03 14.42902 04 43 13.71 -42 18 20.1          17.3 TqEF010Q62
    CK18E010 *C2018 03 14.42932 04 43 13.72 -42 18 19.7          18.0 TtEF010E10
    CK18E010 *C2018 03 14.42972 04 43 13.77 -42 18 18.8          18.2 TtEF010E10
    CK18E010 *C2018 03 14.43014 04 43 13.81 -42 18 18.3          18.2 TtEF010E10
    CK18E010 *C2018 03 14.43054 04 43 13.84 -42 18 17.7          18.0 TtEF010E10
    CK18E010 *C2018 03 14.43095 04 43 13.90 -42 18 16.9          18.1 TtEF010E10
    CK18E010 3C2018 03 15.46421 04 45 02.48 -41 51 56.5          16.8 TqEF010Q62
    CK18E010 3C2018 03 15.46594 04 45 02.67 -41 51 53.8          17.1 TqEF010Q62
    CK18E010 3C2018 03 15.46767 04 45 02.87 -41 51 51.0          16.8 TqEF010Q62
    CK18E010 KC2018 03 15.98483 04 45 57.41 -41 38 39.8          17.6 TqEF010X31
    CK18E010 KC2018 03 16.01279 04 46 00.36 -41 37 56.9          17.5 TqEF010X31
    CK18E010 KC2018 03 16.04815 04 46 04.08 -41 37 02.6          17.3 TqEF010X31
    CK18E010  C2018 03 16.23258 04 46 23.68 -41 32 22.4          17.3 TUEF010T05
    CK18E010  C2018 03 16.23823 04 46 24.19 -41 32 14.0          17.2 TUEF010T05
    CK18E010  C2018 03 16.24528 04 46 24.96 -41 32 03.7          17.2 TUEF010T05
    CK18E010  C2018 03 16.25231 04 46 25.65 -41 31 52.4          17.7 TUEF010T05
 
Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD, 1.00-m f/10.0 astrograph + CCD.
E10 Siding Spring-Faulkes Telescope South.  Observers L. Belli, J. Welzel,
    D. Bloom, E. Siemens, P. Breitenstein.  2.0-m Ritchey-Chretien + CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + CCD.
E94 Possum Observatory, Gisborne.  Observer J. Drummond.  0.35-m f/10
    Schmidt-Cassegrain + 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. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
    1.8-m Ritchey-Chretien + CCD.
I39 Observatorio Cruz del Sur, San Justo.  Observer A. Chapman.  0.20-m f/4
    reflector + CCD.
I47 Pierre Auger Observatory, Malargue.  Observer M. Masek.  0.3-m f/10
    reflector + CCD.
Q62 iTelescope Observatory, Siding Spring.  Observers D. Denisenko, H. Sato,
    M. Suzuki, M. Urbanik, M. Mattiazzo, E. Guido, G. van Buitenen,
    A. Valvasori, R. Ligustri.  Measurers H. Sato, M. Suzuki, M. Urbanik,
    M. Mattiazzo, E. Guido, G. van Buitenen, A. Valvasori, R. Ligustri.
    0.40-m f/3.5 reflector + CCD, 0.43-m f/6.8 astrograph + CCD, 0.51-m
    f/6.8 astrograph + CCD + f/4.5 focal reducer, 0.70-m f/6.6 astrograph
    + CCD/
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, A. Heinze, H. Weiland,
    J. Tonry, H. Flewelling.  Measurers L. Denneau, H. Flewelling, A. Heinze,
    B. Stalder, J. Tonry.  0.5-m f/2.0 Schmidt + CCD.
W88 Slooh.com Chile Observatory, La Dehesa.  Observer B. Lutkenhoner.  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/5.2
    Ritchey-Chretien + CCD.
X31 Galileo Galilei Observatory, Oro Verde.  Observers C. N. Fornari,
    M. Serezo, T. Rivera.  Measurer C. N. Fornari.  0.28-m f/10
    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/2018 E1 (ATLAS)
Epoch 2018 May 2.0 TT = JDT 2458240.5
T 2018 Apr. 17.32372 TT                                 MPCW
q   2.7054318            (2000.0)            P               Q
z  +0.0183558      Peri.  299.47240     -0.26852966     -0.80983341
 +/-0.0000000      Node   146.84068     +0.77844306     +0.13650119
e   0.9503397      Incl.   72.47971     -0.56737838     +0.57055874
>From 133 observations 2015 Aug. 11-2018 Mar. 16, mean residual 0".3.

    C/2018 E1 (ATLAS)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 Apr. 17.32070 TT                                 MPCW
q   2.7054324            (2000.0)            P               Q
z  +0.0183481      Peri.  299.47131     -0.26851671     -0.80984306
 +/-0.0000000      Node   146.84122     +0.77844069     +0.13650752
e   0.9503604      Incl.   72.47943     -0.56738775     +0.57054352
>From 133 observations 2015 Aug. 11-2018 Mar. 16, mean residual 0".3.

Ephemeris:
    C/2018 E1 (ATLAS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2018 02 14    03 57 09.1 -53 49 06   2.7643  2.7787    80.6    20.5  17.1
...
2018 03 01    04 20 25.4 -47 54 57   2.7434  2.7480    79.9    20.8  17.1
...
2018 03 09    04 33 50.2 -44 35 56   2.7420  2.7349    79.2    20.9  17.1
...
2018 03 15    04 44 13.8 -42 03 48   2.7465  2.7267    78.4    20.9  17.1
2018 03 16    04 45 59.1 -41 38 18   2.7477  2.7254    78.3    20.9  17.0
2018 03 17    04 47 44.8 -41 12 45   2.7491  2.7242    78.1    20.9  17.0
...
2018 03 23    04 58 25.9 -38 39 16   2.7605  2.7177    77.1    20.9  17.0
...
2018 03 31    05 12 54.8 -35 15 27   2.7841  2.7112    75.4    20.9  17.1
...
2018 04 15    05 40 28.3 -29 04 32   2.8552  2.7055    71.3    20.6  17.1

Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-F10



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