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    • MPEC 2021-A176 : 2021 AW5

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    M.P.E.C. 2021-A176                             Issued 2021 January 13, 20:46 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 AW5                                 


Observations:
     K21A05W* C2021 01 12.45693808 14 15.737+35 09 01.05         21.11wUEA176F51
     K21A05W  C2021 01 12.46832808 14 18.114+35 09 59.50         21.22wUEA176F51
     K21A05W  C2021 01 12.47974908 14 20.507+35 10 57.94         21.26wUEA176F51
     K21A05W  C2021 01 12.49113908 14 22.891+35 11 55.51         21.26wUEA176F51
     K21A05W KC2021 01 13.09134508 17 19.59 +36 04 02.8          20.8 GVEA176L01
     K21A05W KC2021 01 13.09760108 17 21.22 +36 04 35.5          20.9 GVEA176L01
     K21A05W KC2021 01 13.10472008 17 23.19 +36 05 14.0          21.3 GVEA176L01
     K21A05W KC2021 01 13.25985708 18 24.85 +36 20 27.5          21.14GVEA176I52
     K21A05W KC2021 01 13.26364308 18 25.80 +36 20 49.7          21.07GVEA176I52
     K21A05W KC2021 01 13.26742908 18 26.78 +36 21 11.7          21.54GVEA176I52
     K21A05W ^C2021 01 13.40124008 19 11.003+36 34 36.77         20.95GVEA176568
     K21A05W ^C2021 01 13.40221908 19 11.254+36 34 42.56         20.86GVEA176568
     K21A05W ^C2021 01 13.40320708 19 11.507+36 34 48.50         20.90GVEA176568
     K21A05W ^C2021 01 13.40419108 19 11.766+36 34 54.53         20.87GVEA176568

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Crowder, T. Burdullis.  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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    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.  Measurers D. Pujagic,
    K. Korlevic.  1.0-m f/2.9 reflector + CCD.

Orbital elements:
2021 AW5                                                 Earth MOID = 0.0134 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 299.21748              (2000.0)            P               Q
n   0.71777503     Peri.   93.33102     -0.99903230     +0.02806392
a   1.2354082      Node    88.27905     -0.03924882     -0.91633584
e   0.2774374      Incl.    1.94161     +0.01984933     -0.39942590
P   1.37           H   26.5           G   0.15           U   8
Residuals in seconds of arc
210112 F51  0.0   0.0     210113 L01  0.3-  0.5-    210113 568  0.1-  0.1+
210112 F51  0.0   0.0     210113 L01  0.3+  0.4+    210113 568  0.1-  0.0
210112 F51  0.1+  0.1+    210113 I52  0.5+  0.2+    210113 568  0.1-  0.0
210112 F51  0.0   0.1-    210113 I52  0.0   0.0     210113 568  0.1-  0.1+
210113 L01  0.2+  0.0     210113 I52  0.2-  0.4-

Ephemeris:
2021 AW5                 a,e,i = 1.24, 0.28, 2                   q = 0.8927
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 12 14    07 27 27.6 +21 39 02   0.2028  1.1672   151.9    23.4    24.5
...
2020 12 29    07 42 22.0 +24 45 20   0.1211  1.1003   164.0    14.3    22.9
...
2021 01 06    07 54 24.2 +28 42 05   0.08364 1.0652   167.8    11.3    21.9
...
2021 01 12    08 12 10.2 +34 30 28   0.05809 1.0396   164.7    14.5    21.2
2021 01 13    08 16 56.1 +35 56 13   0.05407 1.0354   163.3    15.9    21.1
2021 01 14    08 22 37.8 +37 33 52   0.05015 1.0313   161.6    17.5    21.0
...
2021 01 20    09 49 28.1 +53 44 28   0.02938 1.0071   141.3    37.7    20.4
...
2021 01 28    17 20 42.9 +34 43 54   0.02534 0.9769    71.3   107.3    22.5
...
2021 02 12    18 56 36.4 -03 13 12   0.07908 0.9301    42.2   134.5    27.0

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-A176

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