• Processing (Info)

    • MPEC 2021-M05 : 2021 LF7

    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-M04 Read MPEC 2021-M06 

    M.P.E.C. 2021-M05                                 Issued 2021 June 16, 11:28 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 LF7                                 


Observations:
     K21L07F  C2021 06 09.36951 20 35 27.46 -04 29 18.4                VEM005G96
     K21L07F  C2021 06 09.37473 20 35 29.09 -04 29 32.0                VEM005G96
     K21L07F* C2021 06 14.51396121 05 27.213-08 35 26.35         22.07wUEM005F51
     K21L07F  C2021 06 14.52708621 05 31.622-08 36 06.09         21.97wUEM005F51
     K21L07F  C2021 06 14.54021621 05 36.035-08 36 45.60         21.71wUEM005F51
     K21L07F KC2021 06 15.31359621 10 10.75 -09 15 58.7          22.0 VuEM005H21
     K21L07F KC2021 06 15.31794021 10 12.23 -09 16 12.1          22.1 VuEM005H21
     K21L07F KC2021 06 15.32228421 10 13.72 -09 16 25.5          22.1 VuEM005H21
     K21L07F ^C2021 06 15.50003821 11 17.222-09 25 14.44         22.00GVEM005568
     K21L07F ^C2021 06 15.50102121 11 17.544-09 25 17.34         22.03GVEM005568
     K21L07F KC2021 06 16.43540221 16 48.21 -10 13 06.9          21.59GVEM005V06
     K21L07F KC2021 06 16.44250721 16 50.58 -10 13 28.9          21.41GVEM005V06
     K21L07F KC2021 06 16.44605821 16 51.78 -10 13 40.9                VEM005V06

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Cunningham, 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.  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 D. Rankin.  Measurers E. J. Christensen, B.
    Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  1.3-m f/4.0 astrograph + CCD.
V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector +
    1K CCD.

Orbital elements:
2021 LF7                                                 Earth MOID = 0.1205 AU
Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres
M   3.88071              (2000.0)            P               Q
n   0.30402877     Peri.  181.57333     +0.14656158     +0.96612118
a   2.1904143      Node    96.89096     -0.90522166     +0.21758356
e   0.4809145      Incl.   12.35587     -0.39886521     -0.13880656
P   3.24           H   23.6           G   0.15           U   8
Residuals in seconds of arc
210609 G96  0.8+  0.2-    210615 H21  1.0+  0.3-    210616 V06  0.2-  1.0+
210609 G96  0.5-  0.4+    210615 H21  0.9+  0.4-    210616 V06  0.8-  0.9+
210614 F51  0.0   0.0     210615 H21  1.1+  0.6-    210616 V06  0.8-  0.2-
210614 F51  0.3-  0.0     210615 568  1.3+  0.7-
210614 F51  0.5-  0.2+    210615 568  1.2+  0.6-

Ephemeris:
2021 LF7                 a,e,i = 2.19, 0.48, 12                  q = 1.1370
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 05 17    18 42 01.5 +06 22 59   0.2854  1.2057   127.3    41.9    22.9
...
2021 06 01    19 49 43.6 +00 58 33   0.2209  1.1614   127.4    44.0    22.3
...
2021 06 09    20 33 19.1 -04 12 16   0.1994  1.1466   127.1    44.9    22.1
...
2021 06 15    21 08 18.0 -08 59 30   0.1904  1.1399   126.7    45.6    22.0
2021 06 16    21 14 12.9 -09 50 18   0.1895  1.1391   126.6    45.7    22.0
2021 06 17    21 20 08.1 -10 41 35   0.1888  1.1385   126.5    45.8    22.0
...
2021 06 23    21 55 17.0 -15 52 03   0.1882  1.1370   125.9    46.4    22.0
...
2021 07 01    22 38 51.8 -22 19 51   0.1963  1.1412   125.2    46.7    22.1
...
2021 07 16    23 40 38.0 -31 34 29   0.2309  1.1674   126.1    44.7    22.5

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-M05

    Read MPEC 2021-M04 Read MPEC 2021-M06

    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)