• Processing (Info)

    • MPEC 2019-G108: 2019 GB4

    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 2019-G107 Read MPEC 2019-G109 

    M.P.E.C. 2019-G108                               Issued 2019 Apr.  9, 00:02 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

                                   2019 GB4

Observations:
     K19G04B* C2019 04 05.42395 13 16 14.121-23 47 05.73         21.6 wUEG108F51
     K19G04B  C2019 04 05.43557 13 16 15.092-23 47 10.59         21.7 wUEG108F51
     K19G04B  C2019 04 05.44720 13 16 16.066-23 47 15.70         20.9 wUEG108F51
     K19G04B  C2019 04 06.49594 13 18 05.240-23 54 15.03         21.1 wUEG108F51
     K19G04B  C2019 04 06.50649 13 18 06.174-23 54 18.85         21.6 wUEG108F51
     K19G04B  C2019 04 06.51705 13 18 07.114-23 54 22.57         21.4 wUEG108F51
     K19G04B  C2019 04 06.52767 13 18 08.088-23 54 26.12         21.5 wUEG108F51
     K19G04B KC2019 04 06.58110113 18 14.69 -23 54 00.4          20.9 GVEG108474
     K19G04B KC2019 04 06.58462013 18 15.03 -23 54 01.8          20.4 GVEG108474
     K19G04B KC2019 04 06.58796513 18 15.35 -23 54 02.6          21.1 GVEG108474
     K19G04B KC2019 04 06.59166213 18 15.66 -23 54 04.0          21.1 GVEG108474
     K19G04B KC2019 04 07.58949013 20 05.43 -24 00 14.5          21.2 GVEG108474
     K19G04B KC2019 04 07.59301013 20 05.82 -24 00 15.2          21.6 GVEG108474
     K19G04B KC2019 04 07.59653013 20 06.13 -24 00 16.6          20.6 GVEG108474
     K19G04B  C2019 04 08.25067 13 21 22.72 -24 05 01.3          21.1 GVEG108I52
     K19G04B  C2019 04 08.25233 13 21 22.88 -24 05 01.8          21.1 GVEG108I52
     K19G04B  C2019 04 08.25921 13 21 23.57 -24 05 04.2          21.1 GVEG108I52

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.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.
    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, T. A. Pruyne, R. L. Seaman, F. C. Shelly.  1.0-m reflector
    + CCD.

Orbital elements:
2019 GB4                                                 Earth MOID = 0.0857 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 350.07955              (2000.0)            P               Q
n   0.41608524     Peri.   10.23360     -0.49645915     +0.86614037
a   1.7769744      Node   230.02589     -0.80165587     -0.48296434
e   0.3827213      Incl.    4.31800     -0.33298075     -0.12863240
P   2.37           H   23.7           G   0.15           U   7
Residuals in seconds of arc
190405 F51  0.0   0.0     190406 F51  0.3+  0.0     190407 474  0.7+  0.5+
190405 F51  0.0   0.1+    190406 474  0.4-  0.2-    190407 474  0.3+  0.3+
190405 F51  0.0   0.1-    190406 474  0.2-  0.3-    190408 I52  0.2-  0.3-
190406 F51  0.1-  0.1+    190406 474  0.1-  0.1+    190408 I52  0.2-  0.2-
190406 F51  0.1-  0.0     190406 474  0.5-  0.0     190408 I52  0.1-  0.1+
190406 F51  0.1-  0.1-    190407 474  0.1+  0.0

Ephemeris:
2019 GB4                 a,e,i = 1.78, 0.38, 4                   q = 1.0969
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 03 10    12 44 02.3 -19 08 27   0.3460  1.3006   148.5    23.5    23.1
...
2019 03 25    13 00 02.7 -22 05 40   0.2519  1.2323   156.6    18.8    22.1
...
2019 04 02    13 10 43.7 -23 20 44   0.2107  1.1997   160.1    16.4    21.6
...
2019 04 08    13 20 52.6 -24 02 56   0.1837  1.1775   162.4    14.9    21.2
2019 04 09    13 22 49.3 -24 08 30   0.1795  1.1740   162.8    14.6    21.1
2019 04 10    13 24 51.3 -24 13 35   0.1753  1.1706   163.2    14.3    21.1
...
2019 04 16    13 39 11.5 -24 32 55   0.1525  1.1514   165.3    12.8    20.7
...
2019 04 24    14 05 38.3 -24 18 49   0.1267  1.1299   168.3    10.4    20.1
...
2019 05 09    15 24 36.2 -20 11 29   0.09458 1.1034   173.7     5.7    19.2

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-G108

    Read MPEC 2019-G107 Read MPEC 2019-G109

    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)