[Iaude] MPEC J74: 2021 JU1 [a=1.22,e=0.16,i=4.5,H=24.8]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu May 6 02:46:32 EDT 2021


M.P.E.C. 2021-J74                                   Issued 2021 May 6, 06:45 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 JU1                                    


Observations:
     K21J01U  C2021 04 06.33487 14 52 11.82 +11 05 14.2          22.6 GVEJ074G96
     K21J01U  C2021 04 06.34625 14 52 12.60 +11 05 43.1                VEJ074G96
     K21J01U  C2021 04 06.35196 14 52 13.08 +11 05 56.9          22.3 GVEJ074G96
     K21J01U  C2021 04 18.41429 15 10 40.39 +20 09 32.1                VEJ074G96
     K21J01U  C2021 04 18.42012 15 10 40.80 +20 09 50.0          22.1 GVEJ074G96
     K21J01U  C2021 04 18.43175 15 10 41.62 +20 10 23.5          22.2 GVEJ074G96
     K21J01U* C2021 05 04.35252715 39 18.51 +33 28 44.2          21.71GVEJ074G96
     K21J01U  C2021 05 04.35771415 39 19.03 +33 29 00.1          21.49GVEJ074G96
     K21J01U  C2021 05 04.36290715 39 19.51 +33 29 15.0          21.39GVEJ074G96
     K21J01U  C2021 05 04.36811515 39 19.93 +33 29 30.6          21.82GVEJ074G96
     K21J01U  C2021 05 04.42111815 39 24.90 +33 32 05.1          21.49GVEJ074G96
     K21J01U  C2021 05 04.42738015 39 25.52 +33 32 22.7          21.13GVEJ074G96
     K21J01U  C2021 05 04.43364115 39 26.13 +33 32 40.9          21.61GVEJ074G96
     K21J01U  C2021 05 05.24592115 41 16.30 +34 13 03.8          21.2 GVEJ074H01
     K21J01U  C2021 05 05.24929315 41 16.62 +34 13 14.3          21.4 GVEJ074H01
     K21J01U  C2021 05 05.26469315 41 18.13 +34 14 02.3          21.5 GVEJ074H01
     K21J01U  C2021 05 05.26780915 41 18.45 +34 14 11.5          21.5 GVEJ074H01
     K21J01U KC2021 05 06.21658815 43 22.93 +35 00 59.8          21.7 VuEJ074H21
     K21J01U KC2021 05 06.22206115 43 23.49 +35 01 16.6          21.9 VuEJ074H21

Observer details:
G96 Mt. Lemmon Survey.  Observers K. W. Wierzchos, D. Rankin.  Measurers B.
    Gray, D. Rankin, F. C. Shelly, 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, K. W. Wierzchos.  1.5-m
    reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 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:
2021 JU1                                                 Earth MOID = 0.0429 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 221.38452              (2000.0)            P               Q                  
n   0.73442686     Peri.  126.75662     +0.05790618     +0.99738087             
a   1.2166631      Node   146.48469     -0.93913778     +0.06914698             
e   0.1558702      Incl.    4.50177     -0.33862532     -0.02121524             
P   1.34           H   24.81          G   0.15           U   8                  
Residuals in seconds of arc
210406 G96  0.1+  0.6-    210504 G96  0.3+  0.5+    210505 H01  0.2-  0.0
210406 G96  0.6-  0.4+    210504 G96  0.3+  0.1-    210505 H01  0.2-  0.4+
210406 G96  0.4+  0.2+    210504 G96  0.3-  0.1+    210505 H01  0.0   0.0
210418 G96  0.0   0.8-    210504 G96  0.2-  0.1+    210506 H21  0.2-  0.1+
210418 G96  0.0   0.3+    210504 G96  0.0   0.3-    210506 H21  0.2-  0.2+
210418 G96  0.0   0.4+    210504 G96  0.1+  0.1-
210504 G96  0.3-  0.0     210505 H01  0.0   0.1-

Ephemeris:
2021 JU1                 a,e,i = 1.22, 0.16, 5                   q = 1.0270
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 06    14 51 40.0 +10 52 01   0.1612  1.1395   147.2    28.4    22.4
...
2021 04 21    15 14 49.3 +22 16 43   0.1260  1.1053   140.7    35.1    22.0
...
2021 04 29    15 28 41.6 +28 59 05   0.1130  1.0885   134.0    41.7    21.9
...
2021 05 05    15 40 41.5 +34 00 54   0.1053  1.0769   128.3    47.3    21.9
2021 05 06    15 42 52.1 +34 50 25   0.1041  1.0751   127.3    48.3    21.9
2021 05 07    15 45 06.3 +35 39 36   0.1030  1.0733   126.3    49.3    21.9
...
2021 05 13    16 00 01.4 +40 24 53   0.09693 1.0629   120.5    55.0    21.9
...
2021 05 21    16 25 26.8 +46 09 48   0.09002 1.0509   113.2    62.2    21.9
...
2021 06 05    17 40 18.1 +54 25 30   0.07901 1.0344   102.4    73.4    21.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J74




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