[Iaude] MPEC J151: 2021 HX3 [a=1.89,e=0.43,i=11.2,H=23.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon May 10 18:32:55 EDT 2021


M.P.E.C. 2021-J151                                 Issued 2021 May 10, 22:31 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

                                    2021 HX3                                    


Observations:
     K21H03X  C2021 04 08.50767013 52 45.610+20 54 54.68         21.78GVEJ151F51
     K21H03X  C2021 04 08.53030213 52 44.624+20 54 53.05         22.16GVEJ151F51
     K21H03X  C2021 04 08.54167513 52 44.161+20 54 52.61         23.04GVEJ151F51
     K21H03X  C2021 04 12.35875313 50 31.920+20 44 57.01         21.88GVEJ151F51
     K21H03X  C2021 04 18.35594 13 45 45.27 +19 55 59.9          21.9 GVEJ151G96
     K21H03X  C2021 04 18.36076 13 45 44.97 +19 55 56.9          22.6 GVEJ151G96
     K21H03X  C2021 04 18.36557 13 45 44.59 +19 55 52.3          21.8 GVEJ151G96
     K21H03X* C2021 04 30.28480 13 32 47.046+15 19 01.82         21.1 wUEJ151F51
     K21H03X  C2021 04 30.29835 13 32 45.835+15 18 33.23         21.4 wUEJ151F51
     K21H03X  C2021 04 30.31189 13 32 44.580+15 18 03.67         21.5 wUEJ151F51
     K21H03X  C2021 04 30.32544 13 32 43.325+15 17 34.49         21.4 wUEJ151F51
     K21H03X  C2021 05 01.28458913 31 31.646+14 41 07.11         21.49wUEJ151F51
     K21H03X  C2021 05 01.29894213 31 30.322+14 40 34.04         20.97wUEJ151F51
     K21H03X  C2021 05 01.31326713 31 28.979+14 40 00.65         21.53wUEJ151F51
     K21H03X  C2021 05 10.34039713 19 28.432+06 32 04.91         20.97wUEJ151F51
     K21H03X  C2021 05 10.35520513 19 26.860+06 31 02.00         21.02wUEJ151F51
     K21H03X  C2021 05 10.36997013 19 25.294+06 29 59.21         20.76wUEJ151F51
     K21H03X  C2021 05 10.38477713 19 23.732+06 28 56.26         21.17wUEJ151F51
     K21H03X bC2021 05 10.88641713 18 43.47 +05 52 25.8          21.0 GVEJ151L01
     K21H03X bC2021 05 10.88875813 18 43.22 +05 52 16.3          21.0 GVEJ151L01
     K21H03X bC2021 05 10.89110013 18 43.01 +05 52 05.9          20.8 GVEJ151L01
     K21H03X bC2021 05 10.89344213 18 42.76 +05 51 55.8          20.7 GVEJ151L01

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith, M. Willman.  Measurers S. Chastel, M. Huber, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
    J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier.  1.8-m Ritchey-Chretien
    + CCD.
G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  Measurers E. J.
    Christensen, B. Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2021 HX3                                                 Earth MOID = 0.0804 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 293.87694              (2000.0)            P               Q                  
n   0.37831747     Peri.  202.14747     -0.23793716     +0.95823525             
a   1.8933538      Node    54.43486     -0.85932784     -0.13155072             
e   0.4299232      Incl.   11.24691     -0.45270472     -0.25392837             
P   2.61           H   23.66          G   0.15           U   6                  
Residuals in seconds of arc
210408 F51  0.2+  0.0     210430 F51  0.1+  0.3+    210510 F51  0.0   0.1-
210408 F51  0.2-  0.1-    210430 F51  0.0   0.1-    210510 F51  0.0   0.0
210408 F51  0.1-  0.4+    210430 F51  0.1-  0.1+    210510 L01  0.0   0.4-
210412 F51  0.0   0.2-    210501 F51  0.1-  0.0     210510 L01  0.3-  0.3+
210418 G96  0.3+  0.3-    210501 F51  0.0   0.2+    210510 L01  0.1+  0.2+
210418 G96  0.7+  0.3+    210501 F51  0.0   0.1+    210510 L01  0.1-  0.4+
210418 G96  0.1-  0.7-    210510 F51  0.1+  0.0
210430 F51  0.1-  0.3-    210510 F51  0.0   0.1-

Ephemeris:
2021 HX3                 a,e,i = 1.89, 0.43, 11                  q = 1.0794
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 10    13 51 58.3 +20 52 45   0.2825  1.2540   149.8    23.7    22.5
...
2021 04 25    13 39 00.7 +17 57 54   0.2044  1.1843   148.0    26.7    21.8
...
2021 05 03    13 29 17.7 +13 29 37   0.1697  1.1527   146.0    29.2    21.4
...
2021 05 09    13 21 17.3 +08 03 31   0.1471  1.1321   144.2    31.4    21.1
2021 05 10    13 19 55.9 +06 56 13   0.1436  1.1290   143.9    31.8    21.1
2021 05 11    13 18 34.4 +05 44 50   0.1403  1.1259   143.6    32.2    21.0
...
2021 05 17    13 10 33.8 -02 56 57   0.1226  1.1094   141.2    34.9    20.8
...
2021 05 25    13 00 55.0 -18 54 07   0.1070  1.0927   136.4    39.7    20.6
...
2021 06 09    12 50 24.3 -54 30 09   0.1100  1.0793   123.2    51.9    20.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J151




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