[Iaude] MPEC Y69: COMET C/2018 Y1 (Iwamoto)

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Dec 25 21:21:16 EST 2018


M.P.E.C. 2018-Y69                                Issued 2018 Dec. 26, 02:16 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 Y1 (Iwamoto)
 
Observations:
    CK18Y010 kC2018 12 20.52992 14 17 40.92 -24 40 09.0          14.1 RoEY069H06
    CK18Y010 kC2018 12 20.53301 14 17 40.90 -24 40 07.6          14.2 RoEY069H06
    CK18Y010  C2018 12 20.83657 14 17 39.68 -24 39 21.3                mEY069349
    CK18Y010 KC2018 12 20.83769 14 17 39.71 -24 39 21.2                uEY069367
    CK18Y010 KC2018 12 20.84052 14 17 39.73 -24 39 20.0                uEY069367
    CK18Y010 KC2018 12 20.84336 14 17 39.65 -24 39 19.4                uEY069367
    CK18Y010  C2018 12 20.84609 14 17 39.62 -24 39 20.0                mEY069349
    CK18Y010 KC2018 12 20.84619 14 17 39.68 -24 39 19.3                uEY069367
    CK18Y010 KC2018 12 20.84903 14 17 39.66 -24 39 19.2          12.6 TuEY069367
    CK18Y010  C2018 12 20.85558 14 17 39.60 -24 39 18.1          12.7 TmEY069349
    CK18Y010  C2018 12 20.86472 14 17 39.60 -24 39 17.5          13.7 TtEY069403
    CK18Y010  C2018 12 20.87274 14 17 39.57 -24 39 15.8                tEY069403
    CK18Y010  C2018 12 20.87784 14 17 39.54 -24 39 13.0                tEY069403
    CK18Y010 9C2018 12 21.27501 14 17 37.81 -24 38 11.4          15.8 NUEY069G40
    CK18Y010 9C2018 12 21.27747 14 17 37.78 -24 38 11.4          15.7 NUEY069G40
    CK18Y010 9C2018 12 21.27790 14 17 37.75 -24 38 11.4          15.7 NUEY069G40
    CK18Y010 9C2018 12 21.28136 14 17 37.78 -24 38 10.9          15.8 NUEY069G40
    CK18Y010 9C2018 12 21.28419 14 17 37.72 -24 38 10.2          15.8 NUEY069G40
    CK18Y010 9C2018 12 21.28483 14 17 37.75 -24 38 10.5          15.8 NUEY069G40
    CK18Y010 9C2018 12 21.28834 14 17 37.75 -24 38 09.7          15.8 NUEY069G40
    CK18Y010 $C2018 12 21.31296 14 17 37.73 -24 37 59.2          15.4 RoEY069W88
    CK18Y010  C2018 12 21.33046 14 17 37.69 -24 37 58.2          15.8 GVEY069W96
    CK18Y010 $C2018 12 21.34411 14 17 37.60 -24 37 55.2          15.3 RoEY069W88
    CK18Y010  C2018 12 21.34592 14 17 37.54 -24 37 56.3          15.8 GVEY069W96
    CK18Y010  C2018 12 21.36362 14 17 37.47 -24 37 53.6          15.6 GVEY069W96
    CK18Y010  C2018 12 21.83900 14 17 34.87 -24 36 41.4                qEY069D95
    CK18Y010  C2018 12 21.84871 14 17 34.80 -24 36 40.3                qEY069D95
    CK18Y010  C2018 12 21.85087 14 17 34.77 -24 36 39.7          12.5 TqEY069D95
    CK18Y010  C2018 12 22.24204 14 17 32.56 -24 35 34.0          15.2 NqEY069J22
    CK18Y010  C2018 12 22.24388 14 17 32.65 -24 35 33.4          15.2 NqEY069J22
    CK18Y010  C2018 12 22.26292 14 17 31.92 -24 35 30.1          13.5 NUEY069970
    CK18Y010  C2018 12 22.27262 14 17 31.99 -24 35 27.7          13.6 NUEY069970
    CK18Y010 9C2018 12 22.27582 14 17 32.31 -24 35 28.1          15.8 NUEY069G40
    CK18Y010 9C2018 12 22.27981 14 17 32.31 -24 35 27.4          15.8 NUEY069G40
    CK18Y010 9C2018 12 22.28168 14 17 32.32 -24 35 27.4          15.8 NUEY069G40
    CK18Y010 9C2018 12 22.28656 14 17 32.30 -24 35 26.7          15.8 NUEY069G40
    CK18Y010 9C2018 12 22.28948 14 17 32.22 -24 35 26.5          15.7 NUEY069G40
    CK18Y010 KC2018 12 22.29149 14 17 32.23 -24 35 19.5          15.5 RqEY069I47
    CK18Y010 KC2018 12 22.30086 14 17 32.18 -24 35 18.2          15.5 RqEY069I47
    CK18Y010 KC2018 12 22.30862 14 17 32.21 -24 35 17.6          15.6 NqEY069W96
    CK18Y010 KC2018 12 22.31023 14 17 32.13 -24 35 16.6          15.5 RqEY069I47
    CK18Y010 KC2018 12 22.33670 14 17 32.03 -24 35 13.4          15.3 NqEY069W96
    CK18Y010 KC2018 12 22.36782 14 17 31.87 -24 35 08.3          15.5 NqEY069W96
    CK18Y010 XC2018 12 22.71480 14 17 29.51 -24 34 08.5          15.8 RUEY069Q62
    CK18Y010 XC2018 12 22.71877 14 17 29.47 -24 34 07.7          15.6 RUEY069Q62
    CK18Y010 XC2018 12 22.72267 14 17 29.46 -24 34 07.0          16.0 RUEY069Q62
    CK18Y010 3C2018 12 22.72811 14 17 29.43 -24 34 06.8          14.9 NqEY069Q62
    CK18Y010 3C2018 12 22.73210 14 17 29.38 -24 34 05.9          15.0 NqEY069Q62
    CK18Y010 NC2018 12 22.73581 14 17 29.30 -24 34 04.3          15.3 RqEY069Q62
    CK18Y010 3C2018 12 22.73635 14 17 29.33 -24 34 05.1          14.9 NqEY069Q62
    CK18Y010 NC2018 12 22.73667 14 17 29.33 -24 34 04.7          15.1 RqEY069Q62
    CK18Y010 NC2018 12 22.73751 14 17 29.37 -24 34 04.1          15.2 RqEY069Q62
    CK18Y010  C2018 12 22.84271 14 17 28.53 -24 33 53.1                qEY069D95
    CK18Y010  C2018 12 22.84702 14 17 28.48 -24 33 52.4                qEY069D95
    CK18Y010  C2018 12 22.84918 14 17 28.44 -24 33 51.7          12.2 TqEY069D95
    CK18Y010 KC2018 12 23.24655 14 17 25.70 -24 32 33.7          15.3 VqEY069A77
    CK18Y010 KC2018 12 23.24696 14 17 25.64 -24 32 33.4          15.4 VqEY069A77
    CK18Y010 KC2018 12 23.24819 14 17 25.19 -24 32 28.1          15.2 VqEY069A77
    CK18Y010 KC2018 12 23.25161 14 17 25.51 -24 32 40.8          16.2 GVEY069C95
    CK18Y010 KC2018 12 23.25410 14 17 25.25 -24 32 39.2          15.9 GVEY069C95
    CK18Y010 9C2018 12 23.27230 14 17 25.41 -24 32 36.9                UEY069G40
    CK18Y010 9C2018 12 23.28481 14 17 25.26 -24 32 34.7          15.7 NUEY069G40
    CK18Y010  C2018 12 23.32424 14 17 25.08 -24 32 23.0          15.4 RqEY069W96
    CK18Y010  C2018 12 23.36863 14 17 24.74 -24 32 14.7          15.5 RqEY069W96
    CK18Y010 WC2018 12 23.72028 14 17 21.87 -24 31 11.3          15.7 NqEY069Q62
    CK18Y010 WC2018 12 23.72184 14 17 21.85 -24 31 11.0          15.9 NqEY069Q62
    CK18Y010 ?C2018 12 23.74210 14 17 21.70 -24 31 08.2          15.9 NUEY069Q62
    CK18Y010 ?C2018 12 23.74391 14 17 21.66 -24 31 07.6          16.0 NUEY069Q62
    CK18Y010 ?C2018 12 23.74562 14 17 21.67 -24 31 07.1          16.1 NUEY069Q62
    CK18Y010  C2018 12 23.84440 14 17 20.73 -24 30 53.7          12.3 TmEY069349
    CK18Y010  C2018 12 23.84985 14 17 20.64 -24 30 53.1                mEY069349
    CK18Y010 KC2018 12 24.23407 14 17 17.54 -24 29 42.7          15.0 VqEY069A77
    CK18Y010 KC2018 12 24.23764 14 17 17.26 -24 29 42.4          14.9 VqEY069A77
    CK18Y010 KC2018 12 24.24305314 17 16.88 -24 29 41.2          16.0 GVEY069C95
    CK18Y010 KC2018 12 24.24356 14 17 17.17 -24 29 41.8          15.0 VqEY069A77
    CK18Y010 KC2018 12 24.25619714 17 16.72 -24 29 36.5          16.0 GVEY069C95
    CK18Y010 KC2018 12 24.28336 14 17 16.87 -24 29 27.2          15.6 VqEY069I47
    CK18Y010 KC2018 12 24.29577 14 17 16.77 -24 29 25.0          15.7 VqEY069I47
    CK18Y010 KC2018 12 24.30571 14 17 16.64 -24 29 23.3          15.6 VqEY069I47
    CK18Y010 WC2018 12 24.71102 14 17 12.71 -24 28 07.5          14.3 NqEY069Q62
    CK18Y010 WC2018 12 24.71784 14 17 12.61 -24 28 06.1          14.3 NqEY069Q62
    CK18Y010  C2018 12 24.82958 14 17 11.50 -24 27 49.4                cEY069D74
    CK18Y010  C2018 12 24.84354 14 17 11.35 -24 27 47.9                cEY069D74
    CK18Y010  C2018 12 24.85727 14 17 11.17 -24 27 45.1                cEY069D74
    CK18Y010  C2018 12 24.86425 14 17 11.00 -24 27 44.7          13.5 TcEY069D74
    CK18Y010 3C2018 12 25.32836 14 17 06.26 -24 26 08.0          16.1 NUEY069W88
    CK18Y010 3C2018 12 25.33512 14 17 06.13 -24 26 06.5          16.0 NUEY069W88
    CK18Y010 3C2018 12 25.34204 14 17 06.08 -24 26 05.5          16.0 NUEY069W88
    CK18Y010 WC2018 12 25.71528 14 17 01.78 -24 24 51.0          14.1 NqEY069Q62
    CK18Y010 WC2018 12 25.71840 14 17 01.73 -24 24 50.5          14.2 NqEY069Q62
 
Observer details:
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.
403 Kani.  Observer Y. Mizuno.  0.32-m f/5.4 reflector + CCD.
970 Chelmsford.  Observer N. James.  0.07-m f/4.8 refractor + CCD.
A77 Observatoire Chante-Perdrix, Dauban.  Observers C. Rinner, F. Kugel.
    Measurer F. Kugel.  0.06-m f/5.8 refractor + CCD, 0.28-m f/2.2
    Schmidt-Cassegrain + CCD.
C95 SATINO Remote Observatory, Haute Provence.  Observer J. Jahn.  0.60-m
    f/3.2 Newtonian reflector + CCD.
D74 Nakagawa.  Observers H. Hori, K. Imamura.  Measurer H. Hori.  1.13-m
    f/9.7 reflector + CCD.
D95 Kurihara.  Observer T. Takahashi.  0.25-m f/4.2 reflector + CCD.
G40 Slooh.com Canary Islands Observatory.  Observer B. Lutkenhoner.  0.43-m
    f/6.8 Corrected Dall-Kirkham + CCD, 0.5-m f/6.8 Corrected Dall-Kirkham +
    CCD.
H06 iTelescope Observatory, Mayhill.  Observer R. Fidrich.  Measurer
    K. Sarneczky.  0.10-m f/5.0 reflector + CCD.
I47 Pierre Auger Observatory, Malargue.  Observer M. Masek.  0.3-m f/6.8
    reflector + CCD.
J22 Tacande Observatory, La Palma.  Observer K. Hills.  0.5-m f/2.9
    astrograph + CCD.
Q62 iTelescope Observatory, Siding Spring.  Observers Y.-P. Chan, H.-J. Tan,
    R. Ligustri, G. van Buitenen, N. James, B. Lutkenhoner.  Measurers
    H.-J. Tan, R. Ligustri, G. van Buitenen, N. James, B. Lutkenhoner.  0.5-m
    f/4.4 reflector + CCD, , 0.50-m f/6.8 reflector + CCD + f/4.5 focal
    reducer.
W88 Slooh.com Chile Observatory, La Dehesa.  Observers T. Zalezsak,
    B. Lutkenhoner.  Measurers K. Sarneczky, B. Lutkenhoner.  0.36-m
    Schmidt-Cassegrain + CCD, 0.35-m f/11 Schmidt-Cassegrain + CCD.
W96 CAO, San Pedro de Atacama (since 2013).  Observers A. Maury, J.-B. de
    Vanssay, T. Noel, J.-F. Soulier, J.-G. Bosch.  Measurers T. Noel,
    J.-F. Soulier, J.-G. Bosch.  0.4-m f/5 Ritchey-Chretien + CCD.
 
Orbital elements:
    C/2018 Y1 (Iwamoto)
T 2019 Feb. 6.59314 TT                                  MPCW
q   1.2804722            (2000.0)            P               Q
                   Peri.  357.94768     -0.85838632     +0.47988560
                   Node   147.20883     +0.47531291     +0.61098901
e   1.0            Incl.  160.43789     +0.19300403     +0.62960483
>From 97 observations 2018 Dec. 18-25.

Ephemeris:
    C/2018 Y1 (Iwamoto)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2018 11 26    14 14 28.0 -25 20 05   2.5037  1.6722    25.9    14.9  14.2
...
2018 12 11    14 17 23.4 -24 59 47   2.1709  1.5429    39.4    23.9  13.6
...
2018 12 19    14 17 44.9 -24 43 52   1.9610  1.4810    47.2    29.2  13.2
...
2018 12 25    14 17 09.5 -24 27 14   1.7899  1.4387    53.4    33.3  12.8
2018 12 26    14 16 58.1 -24 23 55   1.7603  1.4321    54.4    33.9  12.8
2018 12 27    14 16 44.9 -24 20 26   1.7304  1.4255    55.5    34.6  12.7
...
2019 01 02    14 14 41.5 -23 54 45   1.5452  1.3887    62.0    38.7  12.4
...
2019 01 10    14 09 11.8 -23 01 40   1.2842  1.3469    71.5    43.8  11.8
...
2019 01 25    13 40 03.6 -18 50 24   0.7691  1.2947    94.4    49.3  10.6

Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-Y69



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