[Iaude] MPEC Q157: 2020 QE4 [a=2.29,e=0.52,i=1.6,H=23.6]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-Q157                              Issued 2020 August 22, 17:13 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

                                    2020 QE4                                    


Observations:
     K20Q04E* C2020 08 19.43179722 56 12.779-06 59 25.30         22.55wUEQ157F51
     K20Q04E  C2020 08 19.44370522 56 13.531-06 59 24.16         22.52wUEQ157F51
     K20Q04E  C2020 08 19.44436822 56 13.580-06 59 24.09         22.18wUEQ157F51
     K20Q04E  C2020 08 19.45564222 56 14.306-06 59 22.87         22.56wUEQ157F51
     K20Q04E  C2020 08 19.45630422 56 14.326-06 59 22.80         22.31wUEQ157F51
     K20Q04E  C2020 08 19.46762222 56 15.060-06 59 21.63         22.26wUEQ157F51
     K20Q04E  C2020 08 19.46829122 56 15.107-06 59 21.47         22.64wUEQ157F51
     K20Q04E KC2020 08 21.24477922 58 31.47 -06 56 38.3          22.5 VuEQ157H21
     K20Q04E KC2020 08 21.25207922 58 31.95 -06 56 38.1          22.6 VuEQ157H21
     K20Q04E KC2020 08 22.24519622 59 50.32 -06 55 09.8          22.1 VuEQ157H21
     K20Q04E KC2020 08 22.25127822 59 50.75 -06 55 09.3          22.1 VuEQ157H21

Observer details:
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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.

Orbital elements:
2020 QE4                                                 Earth MOID = 0.1116 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 320.01723              (2000.0)            P               Q
n   0.28469973     Peri.  237.46772     +0.89678157     -0.44224787
a   2.2884671      Node   148.77305     +0.41455374     +0.82860329
e   0.5172446      Incl.    1.56174     +0.15468681     +0.34326872
P   3.46           H   23.6           G   0.15           U   8
Residuals in seconds of arc
200819 F51  0.1+  0.1-    200819 F51  0.2-  0.0     200821 H21  0.1-  0.2-
200819 F51  0.1-  0.1-    200819 F51  0.0   0.1+    200822 H21  0.0   0.0
200819 F51  0.0   0.1-    200819 F51  0.1+  0.2+    200822 H21  0.0   0.0
200819 F51  0.1+  0.0     200821 H21  0.1+  0.2+

Ephemeris:
2020 QE4                 a,e,i = 2.29, 0.52, 2                   q = 1.1048
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 23    22 25 32.4 -08 28 16   0.5175  1.4712   145.3    23.2    24.1
...
2020 08 07    22 41 48.9 -07 28 59   0.3858  1.3746   155.5    17.8    23.2
...
2020 08 15    22 50 50.5 -07 07 46   0.3267  1.3260   161.0    14.4    22.6
...
2020 08 21    22 58 12.0 -06 56 39   0.2873  1.2914   165.0    11.7    22.2
2020 08 22    22 59 30.4 -06 55 09   0.2812  1.2858   165.7    11.2    22.1
2020 08 23    23 00 50.6 -06 53 43   0.2751  1.2802   166.3    10.8    22.0
...
2020 08 29    23 09 38.2 -06 46 22   0.2413  1.2483   170.0     8.1    21.6
...
2020 09 06    23 24 15.5 -06 36 50   0.2023  1.2093   173.8     5.1    21.0
...
2020 09 21    00 06 31.6 -05 52 15   0.1471  1.1504   173.9     5.3    20.2

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Q157