• MPC Preparation (Info)

  • MPEC 2019-C53 : Observations:

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    M.P.E.C. 2019-C53                                Issued 2019 Feb. 7, 16:08 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/2019 A9 (PANSTARRS)
    
         Initially reported as an asteroid, this object has shown weak cometary
    features.  A. Novichonok (094) repored that six stacked 60-s exposures showed
    it to be slightly diffuse, with a compact condensed coma (no more than 5" in
    diameter) and no tail.  M. Micheli (568) described the object as cometary, with
    a slight elongation to the east.
    
    
    Observations:
        CK19A090  C2018 12 18.48451207 27 17.067+75 23 20.87         22.5 GVEC053F51
        CK19A090  C2018 12 18.49868907 27 12.096+75 23 21.88         21.8 GVEC053F51
        CK19A090  C2018 12 18.52702707 27 01.636+75 23 22.65         22.6 GVEC053F51
        CK19A090* C2019 01 14.26637 04 58 41.909+69 41 40.89         20.3 iUEC053F51
        CK19A090  C2019 01 14.27837 04 58 39.233+69 41 22.95         20.3 iUEC053F51
        CK19A090  C2019 01 14.29037 04 58 36.546+69 41 04.93         20.5 iUEC053F51
        CK19A090 KC2019 01 14.73944204 56 59.41 +69 29 44.2          20.9 GVEC053L01
        CK19A090 KC2019 01 14.74288404 56 58.57 +69 29 39.5          20.8 GVEC053L01
        CK19A090 KC2019 01 14.74589804 56 57.88 +69 29 34.9          21.0 GVEC053L01
        CK19A090  C2019 01 15.16072 04 55 29.68 +69 19 02.0          20.5 GVEC053I52
        CK19A090  C2019 01 15.16294 04 55 29.27 +69 18 58.0          20.5 GVEC053I52
        CK19A090  C2019 01 15.16569 04 55 28.55 +69 18 54.6          20.3 GVEC053I52
        CK19A090  C2019 01 15.16944 04 55 27.78 +69 18 49.0          20.6 GVEC053I52
        CK19A090 ^C2019 01 15.22316104 55 16.773+69 17 26.22         20.49GVEC053568
        CK19A090 ^C2019 01 15.22411004 55 16.576+69 17 24.81         20.47GVEC053568
        CK19A090 ^C2019 01 15.22507204 55 16.373+69 17 23.32         20.46GVEC053568
        CK19A090 KC2019 01 15.84328 04 53 08.66 +69 01 23.9                VEC053204
        CK19A090 HC2019 01 15.85682 04 53 05.78 +69 01 03.1                VEC053204
        CK19A090 HC2019 01 15.87035 04 53 02.98 +69 00 41.7          20.4 GVEC053204
        CK19A090  C2019 01 17.08576 04 49 04.67 +68 28 37.2          20.3 GVEC053I52
        CK19A090  C2019 01 17.08703 04 49 04.40 +68 28 34.5          20.2 GVEC053I52
        CK19A090  C2019 01 17.08831 04 49 04.09 +68 28 32.8          20.7 GVEC053I52
        CK19A090  C2019 01 17.08958 04 49 03.83 +68 28 31.4          20.6 GVEC053I52
        CK19A090  C2019 01 17.28133 04 48 27.303+68 23 23.36         20.5 iUEC053F51
        CK19A090  C2019 01 17.29498 04 48 24.717+68 23 01.70         20.4 iUEC053F51
        CK19A090  C2019 01 17.30856 04 48 22.099+68 22 39.93         20.6 iUEC053F51
        CK19A090  C2019 01 18.08504 04 45 59.46 +68 01 36.9          19.7 GVEC053I52
        CK19A090  C2019 01 18.08670 04 45 59.10 +68 01 34.1          20.7 GVEC053I52
        CK19A090  C2019 01 18.08836 04 45 59.07 +68 01 32.2          19.7 GVEC053I52
        CK19A090  C2019 01 18.09002 04 45 58.54 +68 01 30.3                VEC053I52
        CK19A090 ^C2019 01 20.31869 04 39 39.56 +66 59 23.3          20.5 RoEC053695
        CK19A090 ^C2019 01 20.32852 04 39 37.98 +66 59 06.4          19.9 RoEC053695
        CK19A090 ^C2019 01 20.33835 04 39 36.39 +66 58 49.3          20.2 RoEC053695
        CK19A090  C2019 01 24.07882 04 30 43.51 +65 09 44.9          19.8 GVEC053I52
        CK19A090  C2019 01 24.08125 04 30 43.14 +65 09 40.3          19.9 GVEC053I52
        CK19A090  C2019 01 24.08309 04 30 42.91 +65 09 37.4          19.7 GVEC053I52
        CK19A090  C2019 01 24.08553 04 30 42.57 +65 09 33.4          19.9 GVEC053I52
        CK19A090  C2019 01 25.08045 04 28 40.11 +64 39 41.0          19.8 GVEC053I52
        CK19A090  C2019 01 25.08171 04 28 40.04 +64 39 38.8          19.7 GVEC053I52
        CK19A090  C2019 01 25.09200 04 28 38.76 +64 39 19.6          20.0 GVEC053I52
        CK19A090 |C2019 01 25.14083 04 28 32.77 +64 37 51.9                VEC053H06
        CK19A090 |C2019 01 25.14330 04 28 32.46 +64 37 47.3                VEC053H06
        CK19A090 |C2019 01 25.14585 04 28 32.18 +64 37 42.6                VEC053H06
        CK19A090 |C2019 01 25.14847 04 28 31.82 +64 37 37.8          20.0 GVEC053H06
        CK19A090 9C2019 01 25.95515 04 26 58.42 +64 13 10.6          19.8 VUEC053G40
        CK19A090 9C2019 01 25.97243 04 26 56.33 +64 12 38.5          19.9 VUEC053G40
        CK19A090  C2019 01 27.10082 04 24 54.61 +63 38 08.0          19.8 GVEC053I52
        CK19A090 KC2019 01 27.10117 04 24 54.53 +63 38 07.7          20.0 RoEC053291
        CK19A090  C2019 01 27.10543 04 24 54.10 +63 37 59.4          19.7 GVEC053I52
        CK19A090 KC2019 01 27.10566 04 24 54.05 +63 37 59.2          19.8 RoEC053291
        CK19A090 KC2019 01 27.83611804 23 39.77 +63 15 26.7          20.1 GVEC053J95
        CK19A090 KC2019 01 27.85510004 23 37.80 +63 14 51.8          20.3 GVEC053J95
        CK19A090 KC2019 01 27.86810804 23 36.49 +63 14 27.7          20.1 GVEC053J95
        CK19A090  C2019 01 28.11000 04 23 12.95 +63 06 59.7          19.8 GVEC053I52
        CK19A090  C2019 01 28.11124 04 23 12.89 +63 06 57.5          19.6 GVEC053I52
        CK19A090  C2019 01 28.11499 04 23 12.51 +63 06 50.5          19.6 GVEC053I52
        CK19A090  C2019 01 28.11624 04 23 12.31 +63 06 48.3          19.9 GVEC053I52
        CK19A090 KC2019 01 30.86575 04 19 10.02 +61 40 53.7          18.8 RqEC053970
        CK19A090 KC2019 01 30.89660 04 19 07.47 +61 39 56.3          25.6 RqEC053970
        CK19A090  C2019 01 31.74017 04 18 03.32 +61 13 19.7          18.2 VVEC053033
        CK19A090  C2019 01 31.74375 04 18 03.05 +61 13 13.0          18.3 VVEC053033
        CK19A090  C2019 01 31.74733 04 18 02.78 +61 13 06.1          18.3 VVEC053033
        CK19A090 8C2019 01 31.79997 04 17 58.59 +61 11 26.7                VEC053094
        CK19A090 8C2019 01 31.80067 04 17 58.56 +61 11 25.5                VEC053094
        CK19A090 8C2019 01 31.80139 04 17 58.52 +61 11 23.7          19.9 GVEC053094
        CK19A090 8C2019 01 31.80209 04 17 58.45 +61 11 22.5                VEC053094
        CK19A090  C2019 01 31.84707 04 17 55.22 +61 09 56.9          18.6 VVEC053033
        CK19A090  C2019 01 31.94170 04 17 48.16 +61 06 56.7          18.9 VVEC053033
        CK19A090  C2019 01 31.94528 04 17 47.85 +61 06 49.8          18.8 VVEC053033
        CK19A090  C2019 01 31.94884 04 17 47.61 +61 06 43.0          18.7 VVEC053033
        CK19A090  C2019 01 31.95241 04 17 47.36 +61 06 36.3          18.5 VVEC053033
        CK19A090  C2019 02 02.11570 04 16 27.07 +60 29 47.5                VEC053I52
        CK19A090  C2019 02 02.11939 04 16 26.72 +60 29 40.3          19.2 GVEC053I52
        CK19A090 KC2019 02 02.87171604 15 38.45 +60 05 44.7          19.7 GVEC053J95
        CK19A090 KC2019 02 02.87665104 15 38.16 +60 05 35.0          19.5 GVEC053J95
        CK19A090 KC2019 02 02.89155904 15 37.20 +60 05 06.9          19.7 GVEC053J95
        CK19A090 KC2019 02 02.96457 04 15 32.62 +60 02 45.7          19.8 GVEC053Z99
        CK19A090 KC2019 02 02.96626 04 15 32.41 +60 02 42.6          19.4 GVEC053Z99
        CK19A090 KC2019 02 02.96820 04 15 32.31 +60 02 38.6          19.5 GVEC053Z99
        CK19A090 _C2019 02 03.23402404 15 16.505+59 54 15.16         20.1 GVEC053568
        CK19A090 _C2019 02 03.23589704 15 16.390+59 54 11.61         20.2 GVEC053568
        CK19A090 _C2019 02 03.23781804 15 16.271+59 54 07.97         20.2 GVEC053568
        CK19A090 _C2019 02 03.23969404 15 16.149+59 54 04.34         20.2 GVEC053568
        CK19A090 KC2019 02 03.92021204 14 36.29 +59 32 20.8          19.8 GVEC053L01
        CK19A090 IC2019 02 03.92176904 14 36.26 +59 32 18.2          19.9 GVEC053L01
        CK19A090 KC2019 02 03.92332604 14 36.14 +59 32 15.0          20.0 GVEC053L01
        CK19A090 IC2019 02 03.92488304 14 36.06 +59 32 12.0          19.9 GVEC053L01
        CK19A090  C2019 02 03.99252 04 14 32.24 +59 30 01.4          18.5 VVEC053033
        CK19A090  C2019 02 04.01125 04 14 31.18 +59 29 25.3          18.4 VVEC053033
        CK19A090  C2019 02 04.01448 04 14 30.99 +59 29 19.5          18.2 VVEC053033
        CK19A090  C2019 02 04.01770 04 14 30.83 +59 29 13.2          18.4 VVEC053033
        CK19A090  C2019 02 04.02093 04 14 30.65 +59 29 07.1          17.9 VVEC053033
        CK19A090 KC2019 02 04.07189 04 14 28.14 +59 27 33.5                oEC053711
        CK19A090 KC2019 02 04.07647 04 14 27.88 +59 27 24.6                oEC053711
        CK19A090 IC2019 02 04.08005 04 14 27.63 +59 27 18.1                oEC053711
        CK19A090 KC2019 02 04.08310 04 14 27.49 +59 27 12.1                oEC053711
        CK19A090  C2019 02 04.73149 04 13 52.70 +59 06 29.8          19.3 VVEC053033
        CK19A090  C2019 02 04.73719 04 13 52.39 +59 06 18.0          19.7 VVEC053033
        CK19A090  C2019 02 04.74016 04 13 52.22 +59 06 12.8          19.3 VVEC053033
        CK19A090 KC2019 02 04.85999 04 13 45.73 +59 02 22.6          19.2 GVEC053Z99
        CK19A090 KC2019 02 04.86537 04 13 45.65 +59 02 13.1          19.9 GVEC053Z99
        CK19A090 KC2019 02 04.87075 04 13 45.39 +59 02 02.0          19.4 GVEC053Z99
        CK19A090 KC2019 02 05.75385 04 13 01.81 +58 33 51.6          19.9 VqEC053A71
        CK19A090 KC2019 02 05.75864 04 13 01.61 +58 33 42.8          20.2 VqEC053A71
        CK19A090 KC2019 02 05.76439 04 13 01.30 +58 33 31.6          20.7 VqEC053A71
        CK19A090 KC2019 02 05.76545 04 13 01.37 +58 33 29.3          20.2 GVEC053595
        CK19A090 KC2019 02 05.79997 04 12 59.64 +58 32 23.7          19.9 GVEC053595
        CK19A090 KC2019 02 05.85952 04 12 56.72 +58 30 28.8          19.7 RVEC053K51
        CK19A090 KC2019 02 05.86670 04 12 56.41 +58 30 14.5          19.7 RVEC053K51
        CK19A090 1C2019 02 06.15412 04 12 43.25 +58 21 04.4                LEC053658
        CK19A090 1C2019 02 06.15700 04 12 43.12 +58 20 58.9                LEC053658
        CK19A090 1C2019 02 06.15990 04 12 42.99 +58 20 53.3                LEC053658
        CK19A090 1C2019 02 06.16280 04 12 42.85 +58 20 47.7                LEC053658
        CK19A090 1C2019 02 06.16568 04 12 42.73 +58 20 42.2                LEC053658
        CK19A090 KC2019 02 06.71493 04 12 18.79 +58 03 09.2          19.8 RoEC053K88
        CK19A090 KC2019 02 06.72207 04 12 18.42 +58 02 56.4          19.9 RoEC053K88
        CK19A090 KC2019 02 06.72922 04 12 18.15 +58 02 42.7          19.8 RoEC053K88
        CK19A090  C2019 02 06.74911 04 12 17.32 +58 02 03.9          19.4 VVEC053033
        CK19A090  C2019 02 06.75167 04 12 17.19 +58 01 59.0          19.2 VVEC053033
        CK19A090  C2019 02 06.75421 04 12 17.09 +58 01 54.2          19.1 VVEC053033
        CK19A090 KC2019 02 06.85402 04 12 12.78 +57 58 43.0          20.1 VqEC053C77
        CK19A090 KC2019 02 06.86602 04 12 12.15 +57 58 19.4          20.0 VqEC053C77
        CK19A090 KC2019 02 06.87836 04 12 11.48 +57 57 56.2          19.8 VqEC053C77
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers F. Ludwig,
        B. Stecklum, C. Hoegner.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    094 Crimea-Simeis.  Observers A. Novichonok, Y. Krugly.  1.0-m f/13 reflector
        + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
        CCD.
    291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + CCD.
    568 Mauna Kea.  Observers R. Wainscoat, L. Wells, S. Prunet, J. Kleyna,
        K. J. Meech.  Measurers R. Weryk, R. Wainscoat, M. Micheli, J. Kleyna.
        3.6-m Canada-France-Hawaii Telescope + CCD.
    595 Farra dIsonzo.  Observers E. Pettarin, F. Piani.  Measurer
        E. Pettarin.  0.61-m f/4.5 reflector + CCD.
    658 National Research Council of Canada.  Observer D. D. Balam.  1.82-m
        reflector + CCD.
    695 Kitt Peak.  Observer A. F. Tubbiolo.  2.3-m f/9 reflector + CCD.
    711 McDonald Observatory, Fort Davis.  Observer J. G. Ries.  2.1-m reflector
        + CCD + focal reducer.
    970 Chelmsford.  Observer N. James.  0.28-m f/10 Schmidt-Cassegrain + CCD.
    A71 Stixendorf.  Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
        Measurer M. Jaeger.  0.3-m f/4 reflector + CCD.
    C77 Bernezzo Observatory.  Observer A. Mantero.  0.25-m f/4.0 reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe,
        E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber,
        Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, L. Denneau,
        J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier.  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.
    H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.43-m f/6.8
        astrograph + CCD + f/4.5 focal reducer.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard,
        D. C. Fuls, H. Groeller, B. M. Africano.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
        F. C. Shelly, T. A. Pruyne.  1.0-m reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
        Schmidt-Cassegrain + CCD.
    K51 Osservatorio del Celado, Castello Tesino.  Observers G. Favero,
        R. Furgoni.  Measurer R. Furgoni.  0.80-m f/4 reflector + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  1.02-m
        Ritchey-Chretien + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
        Schmidt-Cassegrain + CCD.
    
    Orbital elements:
        C/2019 A9 (PANSTARRS)
    Epoch 2019 July 16.0 TT = JDT 2458680.5
    T 2019 July 26.52112 TT                                 MPCW
    q   1.4264579            (2000.0)            P               Q
    z  +0.0257470      Peri.  237.79752     -0.16007319     +0.07116375
                       Node   278.36749     +0.80754467     -0.56414730
    e   0.9632730      Incl.   84.34292     -0.56766908     -0.82260170
    From 123 observations 2018 Dec. 18-2019 Feb. 6, mean residual 0".4.
    
        C/2019 A9 (PANSTARRS)
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5
    T 2019 July 26.52066 TT                                 MPCW
    q   1.4264510            (2000.0)            P               Q
    z  +0.0257183      Peri.  237.79774     -0.16007516     +0.07116138
                       Node   278.36741     +0.80754223     -0.56415075
    e   0.9633142      Incl.   84.34272     -0.56767200     -0.82259953
    From 123 observations 2018 Dec. 18-2019 Feb. 6, mean residual 0".4.
    
    Ephemeris:
        C/2019 A9 (PANSTARRS)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2019 01 08    05 25 13.8 +72 03 53   2.2286  2.9373   127.9    15.3  21.4
    ...
    2019 01 23    04 33 05.1 +65 41 45   2.1470  2.7889   121.4    17.5  21.1
    ...
    2019 01 31    04 18 59.7 +61 36 41   2.1328  2.7097   115.7    19.1  21.0
    ...
    2019 02 06    04 12 50.4 +58 26 01   2.1343  2.6503   110.8    20.3  20.9
    2019 02 07    04 12 06.8 +57 54 04   2.1355  2.6404   110.0    20.6  20.9
    2019 02 08    04 11 27.7 +57 22 08   2.1370  2.6305   109.1    20.8  20.8
    ...
    2019 02 14    04 08 59.5 +54 11 39   2.1507  2.5713   103.8    21.9  20.8
    ...
    2019 02 22    04 08 49.3 +50 04 22   2.1806  2.4926    96.4    23.2  20.7
    ...
    2019 03 09    04 15 10.2 +42 54 36   2.2614  2.3461    82.4    24.8  20.5
    
    Gareth V. Williams           (C) Copyright 2019 MPC           M.P.E.C. 2019-C53
    

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    MPEC number:

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