[Iaude] MPEC L46: COMET C/2020 K8 (Catalina-ATLAS)

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Jun 12 12:02:00 EDT 2020


M.P.E.C. 2020-L46                                 Issued 2020 June 12, 15:49 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/2020 K8 (Catalina-ATLAS)                        

     This object was submitted as distinct tracklets in incidental astrometry
by the Catalina Sky Survey (703) under three different temporary designations on
May 25, 28, and 29 UT.  On June 7 UT, a NEO candidate tracklet was submitted by
ATLAS (T05).  Then on June 8, R. Weryk reported the linkage of all of these
tracklets, suggesting it might possibly be a comet based upon the astrometry.
Reports of cometary activity are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures
X02  2020-06-09  E. Guido            10"                         29x60s
U69  2020-06-09  E. Guido            15"                         24x57s
H06  2020-06-10  R. Ligustri         25"                         11x120s
V06  2020-06-11  G. J. Leonard       12"                          4x30s
H06  2020-06-11  H. Sato              8"                         14x60s
L01  2020-06-12  K. Korlevic         13"
850  2020-06-12  D. Durig            10"                         150x10s

Observations:
    CK20K080* C2020 05 25.43424 22 50 45.88 +15 31 37.1          19.3 GVEL046703
    CK20K080  C2020 05 25.43832 22 50 46.29 +15 31 40.6          19.6 GVEL046703
    CK20K080  C2020 05 25.44238 22 50 46.68 +15 31 43.8          19.2 GVEL046703
    CK20K080  C2020 05 25.44645 22 50 47.12 +15 31 45.9          19.1 GVEL046703
    CK20K080  C2020 05 28.44403 22 55 43.96 +16 08 30.8          19.3 GVEL046703
    CK20K080  C2020 05 28.44933 22 55 44.60 +16 08 36.2          19.0 GVEL046703
    CK20K080  C2020 05 28.45462 22 55 45.08 +16 08 40.2          19.1 GVEL046703
    CK20K080  C2020 05 28.45992 22 55 45.58 +16 08 44.8          19.2 GVEL046703
    CK20K080  C2020 05 29.40536 22 57 21.20 +16 20 32.6          18.8 GVEL046703
    CK20K080  C2020 05 29.41066 22 57 21.80 +16 20 35.8          19.4 GVEL046703
    CK20K080  C2020 05 29.41595 22 57 22.26 +16 20 39.8          19.2 GVEL046703
    CK20K080  C2020 05 29.42125 22 57 22.78 +16 20 44.2          18.9 GVEL046703
    CK20K080  C2020 06 07.56494423 13 40.17 +18 20 27.5          18.70oVEL046T05
    CK20K080  C2020 06 07.57711523 13 41.58 +18 20 37.3          18.65oVEL046T05
    CK20K080  C2020 06 07.60122523 13 44.37 +18 20 57.3          18.68oVEL046T05
    CK20K080  C2020 06 07.60675523 13 44.94 +18 21 03.2          18.62oVEL046T05
    CK20K080 KC2020 06 08.38412 23 15 13.38 +18 31 40.7          18.9 GVEL046H36
    CK20K080 KC2020 06 08.38891 23 15 13.91 +18 31 44.6          18.6 GVEL046H36
    CK20K080 KC2020 06 08.39370 23 15 14.45 +18 31 48.5          18.6 GVEL046H36
    CK20K080 KC2020 06 09.38302 23 17 08.42 +18 45 36.1          19.2 GVEL046X02
    CK20K080 KC2020 06 09.40447 23 17 10.86 +18 45 53.3          19.1 GVEL046X02
    CK20K080 &C2020 06 09.43116 23 17 14.15 +18 46 10.1          18.4 GVEL046U69
    CK20K080 &C2020 06 09.43444 23 17 14.49 +18 46 12.6          18.6 GVEL046U69
    CK20K080 &C2020 06 09.43888 23 17 14.97 +18 46 16.2          18.5 GVEL046U69
    CK20K080 ,C2020 06 09.58984723 17 32.53 +18 48 24.7          19.2 GVEL046F65
    CK20K080 ,C2020 06 09.59054723 17 32.65 +18 48 25.3          19.5 GVEL046F65
    CK20K080 ,C2020 06 09.59124823 17 32.71 +18 48 25.9          19.2 GVEL046F65
    CK20K080 ,C2020 06 09.59194923 17 32.79 +18 48 26.3          19.4 GVEL046F65
    CK20K080 9C2020 06 10.11843 23 18 34.35 +18 55 47.3          18.8 GVEL046G40
    CK20K080 KC2020 06 10.12664423 18 35.18 +18 55 54.5          18.3 GVEL046B37
    CK20K080 KC2020 06 10.13001223 18 35.57 +18 55 56.7          18.4 GVEL046B37
    CK20K080 KC2020 06 10.13476923 18 36.13 +18 56 00.5          18.9 GVEL046B37
    CK20K080 9C2020 06 10.13742 23 18 36.58 +18 56 04.1          18.6 GVEL046G40
    CK20K080  C2020 06 10.38549 23 19 05.67 +18 59 30.9                VEL046I52
    CK20K080  C2020 06 10.38830 23 19 06.02 +18 59 33.6          19.6 GVEL046I52
    CK20K080  C2020 06 10.39179 23 19 06.45 +18 59 35.9          20.2 GVEL046I52
    CK20K080  C2020 06 10.39529 23 19 06.86 +18 59 40.4          19.2 GVEL046I52
    CK20K080 1C2020 06 10.40127 23 19 07.54 +18 59 44.4          18.1 GVEL046U69
    CK20K080 *C2020 06 10.40573 23 19 08.07 +18 59 48.7          17.5 RVEL046H06
    CK20K080 *C2020 06 10.41122 23 19 08.68 +18 59 53.5          17.6 RVEL046H06
    CK20K080 1C2020 06 10.41181 23 19 08.78 +18 59 54.0          18.7 GVEL046U69
    CK20K080 *C2020 06 10.41705 23 19 09.43 +19 00 00.5          17.8 RVEL046H06
    CK20K080 1C2020 06 10.42179 23 19 09.96 +19 00 02.2          18.4 GVEL046U69
    CK20K080  C2020 06 11.38077 23 21 03.76 +19 13 36.1          19.1 GVEL046I52
    CK20K080  C2020 06 11.38537 23 21 04.29 +19 13 38.5          19.3 GVEL046I52
    CK20K080  C2020 06 11.38996 23 21 04.86 +19 13 43.9          19.4 GVEL046I52
    CK20K080  C2020 06 11.39455 23 21 05.37 +19 13 46.6          19.7 GVEL046I52
    CK20K080  C2020 06 11.39558 23 21 05.53 +19 13 47.3          19.3 GVEL046V06
    CK20K080  C2020 06 11.40408 23 21 06.53 +19 13 54.8          19.3 GVEL046V06
    CK20K080  C2020 06 11.41187 23 21 07.47 +19 14 01.5          19.3 GVEL046V06
    CK20K080  C2020 06 11.42043 23 21 08.48 +19 14 09.0          19.3 GVEL046V06
    CK20K080 |C2020 06 11.42525 23 21 08.99 +19 14 13.5                VEL046H06
    CK20K080 |C2020 06 11.42915 23 21 09.47 +19 14 16.8                VEL046H06
    CK20K080 |C2020 06 11.43303 23 21 09.94 +19 14 19.9          18.8 GVEL046H06
    CK20K080 IC2020 06 12.00880923 22 19.20 +19 22 30.7          18.9 GVEL046L01
    CK20K080 KC2020 06 12.01194423 22 19.52 +19 22 33.5          18.9 GVEL046L01
    CK20K080 KC2020 06 12.01743523 22 20.21 +19 22 38.6          19.0 GVEL046L01
    CK20K080 KC2020 06 12.01979823 22 20.52 +19 22 40.4          18.9 GVEL046L01
    CK20K080 KC2020 06 12.02216323 22 20.75 +19 22 42.0          19.0 GVEL046L01
    CK20K080 KC2020 06 12.02453123 22 21.07 +19 22 44.2          18.9 GVEL046L01
    CK20K080 KC2020 06 12.02649623 22 21.28 +19 22 45.7          18.9 GVEL046L01
    CK20K080 KC2020 06 12.30668 23 22 55.15 +19 26 47.2          18.5 VqEL046850
    CK20K080 KC2020 06 12.32072 23 22 56.96 +19 26 58.8          18.3 VqEL046850
    CK20K080 KC2020 06 12.33524 23 22 58.68 +19 27 12.7          18.1 VqEL046850

Observer details:
703 Catalina Sky Survey.  Observers G. J. Leonard, H. Groeller.  Measurers 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, T. A. Pruyne, D.
    Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  0.68-m Schmidt + 10K
    CCD.
850 Cordell-Lorenz Observatory, Sewanee.  Observer D. T. Durig.  0.3-m f/7.8
    Schmidt-Cassegrain + 2758x2208 CCD.
B37 Obs. de L Ametlla del Valles, Barcelona.  Observer A. Garrigos.  0.51-m
    f/4.0 reflector + CCD.
F65 Haleakala-Faulkes Telescope North.  Observers J. D. Armstrong, D. A.
    Florez.  2.0-m f/10 reflector + CCD.
G40 Slooh.com Canary Islands Observatory.  Observer B. Lutkenhoner.  0.43-m
    f/6.8 Corrected Dall-Kirkham + CCD.
H06 iTelescope Observatory, Mayhill.  Observers R. Ligustri, H. Sato.  ,
    0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers 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, T. A.
    Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland, H. Flewelling.  Measurers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, J. Robinson, N.
    Erasmus.  0.5-m reflector + CCD.
U69 iTelescope SRO Observatory, Auberry.  Observers M. Mattiazzo, A.
    Valvasori, E. Guido.  0.61-m f/6.5 astrograph + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer G. J. Leonard.  Measurers 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, T. A. Pruyne, D.
    Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector +
    CCD.
X02 Telescope Live, El Sauce.  Observers E. Guido, M. Rocchetto, E. Bryssinck,
    M. Fulle, G. Milani, C. Nassef, G. Savini.  Measurer E. Guido.  0.6-m
    f/6.5 astrograph + CCD.

Orbital elements:
    C/2020 K8 (Catalina-ATLAS)                                                  
T 2020 Sept. 14.49884 TT                                Rudenko                 
q   0.4741397            (2000.0)            P               Q                  
                   Peri.  260.11201     +0.14973679     -0.98863237             
                   Node   181.49464     +0.97944400     +0.14643692             
e   1.0            Incl.   31.42300     -0.13516044     -0.03409195             
>From 64 observations 2020 May 25-June 12.                                       
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2020 05 13    22 31 28.4 +13 09 13   2.5217  2.3602    69.2    23.6  20.0
...
2020 05 28    22 54 59.3 +16 03 03   2.1446  2.1441    76.3    27.3  19.3
...
2020 06 05    23 08 54.7 +17 45 50   1.9437  2.0256    79.7    29.5  18.9
...
2020 06 11    23 20 18.0 +19 08 13   1.7941  1.9351    82.0    31.3  18.6
2020 06 12    23 22 17.8 +19 22 25   1.7693  1.9199    82.4    31.6  18.5
2020 06 13    23 24 19.4 +19 36 47   1.7446  1.9047    82.7    31.9  18.4
...
2020 06 19    23 37 14.0 +21 06 01   1.5972  1.8122    84.7    33.9  18.1
...
2020 06 27    23 57 00.7 +23 13 46   1.4045  1.6866    86.8    37.0  17.6
...
2020 07 12    00 47 38.4 +27 39 42   1.0629  1.4430    87.9    44.7  16.4

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-L46




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