• Processing (Info)

    • MPEC 2021-G194 : 2021 GD9

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2021-G193 Read MPEC 2021-G195 

    M.P.E.C. 2021-G194                               Issued 2021 April 13, 16:26 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

                                2021 GD9                                 


Observations:
     K21G09D  C2021 04 03.41956 14 38 10.06 +01 42 56.4          21.8 GVEG194G96
     K21G09D  C2021 04 03.42982 14 38 09.90 +01 42 56.8          22.2 GVEG194G96
     K21G09D  C2021 04 03.43494 14 38 09.84 +01 42 58.2          21.9 GVEG194G96
     K21G09D* C2021 04 07.48286614 37 24.174+01 48 24.54         21.91wUEG194F51
     K21G09D  C2021 04 07.49623814 37 24.018+01 48 25.65         21.70wUEG194F51
     K21G09D  C2021 04 07.50967414 37 23.855+01 48 26.71         21.62GVEG194F51
     K21G09D  C2021 04 07.52308214 37 23.696+01 48 27.68         21.81wUEG194F51
     K21G09D ^C2021 04 08.60735014 37 11.017+01 49 53.48         21.39GVEG194568
     K21G09D ^C2021 04 08.60833614 37 11.004+01 49 53.56         21.43GVEG194568
     K21G09D ^C2021 04 08.60931414 37 10.994+01 49 53.67         21.40GVEG194568
     K21G09D KC2021 04 13.31499114 36 14.28 +01 55 55.5          22.14GVEG194I52
     K21G09D KC2021 04 13.32390114 36 14.18 +01 55 56.3          21.16GVEG194I52
     K21G09D KC2021 04 13.33279814 36 14.07 +01 55 57.0          21.52GVEG194I52
     K21G09D KC2021 04 13.34167114 36 13.93 +01 55 57.1          21.57GVEG194I52

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Crowder, H. Flewelling.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
    Willman, K. Chambers, I. Smith.  Measurers K. Chambers, S. Chastel, T. de
    Boer, L. Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E.
    Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien +
    CCD.
G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  Measurers B. Gray, D.
    Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  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.

Orbital elements:
2021 GD9                                                                        
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 314.86788              (2000.0)            P               Q                  
n   0.01618404     Peri.  181.21011     +0.27889761     +0.92240786             
a  15.4790668      Node   105.03181     -0.87873694     +0.35734467             
e   0.2844552      Incl.   16.05954     -0.38734675     -0.14652146             
P  60.9            H   10.65          G   0.15           U   8                  
Residuals in seconds of arc
210403 G96  0.5+  0.1-    210407 F51  0.1-  0.1+    210413 I52  0.1-  0.0+
210403 G96  0.1-  0.5-    210407 F51  0.1-  0.0-    210413 I52  0.0+  0.1+
210403 G96  0.2-  0.5+    210408 568  0.0+  0.0-    210413 I52  0.1+  0.2+
210407 F51  0.1-  0.0+    210408 568  0.0-  0.0-    210413 I52  0.3-  0.3-
210407 F51  0.0-  0.1+    210408 568  0.0+  0.0+

Ephemeris:
2021 GD9                 a,e,i = 15.48, 0.28, 16                 q = 11.0760
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 03 14    14 41 12.6 +01 14 20  12.4058 13.1111   133.6     3.1    22.0
...
2021 03 29    14 39 06.9 +01 35 27  12.2401 13.0925   147.4     2.4    21.9
...
2021 04 06    14 37 41.2 +01 46 26  12.1747 13.0826   154.2     1.9    21.9
...
2021 04 12    14 36 30.4 +01 54 16  12.1371 13.0752   158.6     1.6    21.9
2021 04 13    14 36 18.2 +01 55 32  12.1318 13.0740   159.2     1.6    21.9
2021 04 14    14 36 05.8 +01 56 47  12.1268 13.0727   159.8     1.5    21.9
...
2021 04 20    14 34 49.7 +02 03 55  12.1029 13.0653   162.7     1.3    21.8
...
2021 04 28    14 33 04.6 +02 12 21  12.0872 13.0555   163.5     1.3    21.8
...
2021 05 13    14 29 46.7 +02 23 59  12.1075 13.0370   156.0     1.8    21.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-G194

    Read MPEC 2021-G193 Read MPEC 2021-G195

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)