[Iaude] MPEC J13: 2021 JJ [a=1.31,e=0.21,i=8.5,H=25.52]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Wed May 1 10:15:41 EDT 2024


M.P.E.C. 2024-J13                                   Issued 2024 May 1, 14:14 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 JJ                                     


                           Revision to MPEC 2021-J25                            

Additional Observations:
     K21J00J  C2024 04 10.41663614 56 16.019+15 48 45.75         22.16GVEJ013F51
     K21J00J  C2024 04 10.42955414 56 16.386+15 48 34.31         22.77GVEJ013F51
     K21J00J  C2024 04 10.44246214 56 16.703+15 48 22.63         22.35GVEJ013F51
     K21J00J  C2024 04 10.45533914 56 17.045+15 48 11.13         22.17GVEJ013F51
     K21J00J KC2024 04 30.37645715 13 02.428+00 06 04.54         20.46GVEJ013I52
     K21J00J KC2024 04 30.37774115 13 02.449+00 05 56.72         20.41GVEJ013I52
     K21J00J KC2024 04 30.37901815 13 02.478+00 05 49.06         20.65GVEJ013I52
     K21J00J KC2024 04 30.38029215 13 02.514+00 05 41.14         20.30GVEJ013I52

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, 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.  Observers V. F. Carvajal, G. J.
    Leonard.  Measurers T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D.
    C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A.
    Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C.
    Shelly, K. W. Wierzchos.  1.0-m prime focus + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240410 F51 1.21- 0.68-    240430 I52 2.67- 1.18-    E2024-DD1   -0.10 days

Orbital elements:
2021 JJ                                                  Earth MOID = 0.0422 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 315.49049              (2000.0)            P               Q                  
n   0.65838208     Peri.  209.88981     -0.21472797     +0.97055455             
a   1.3086315      Node    47.94637     -0.86441465     -0.13683157             
e   0.2092403      Incl.    8.45383     -0.45461986     -0.19824475             
P   1.50           H   25.52          G   0.15           U   0                  
Residuals in seconds of arc
210418 G96  0.4-  0.5-    210506 807  0.5+  0.1+    210511 G96  0.0   0.1-
210418 G96  0.0   0.5-    210506 807  0.2-  0.6+    210511 G96  0.2+  0.3+
210418 G96  0.5+  0.1+    210506 I52  0.3+  0.2+    210512 807  0.2-  0.1+
210501 F51  0.2+  0.2+    210506 I52  0.9-  0.0     210512 807  0.1-  0.0
210501 F51  0.1+  0.2+    210506 I52  0.4+  0.6-    210512 807  0.5-  0.2+
210501 F51  0.1+  0.0     210506 I52  0.3+  0.4+    210520 474  0.4+  0.3+
210502 I52  0.1-  0.0     210507 I52  0.2-  0.0     210520 474  0.2-  0.0
210502 I52  0.1+  0.1+    210507 I52  0.3+  0.1+    210520 474  0.1+  0.3-
210502 033  0.1-  0.2+    210508 691  0.4+  0.0     210520 474  0.1+  0.1+
210502 033  0.1+  0.0     210508 691  0.4-  0.1+    240410 F51  0.1-  0.0
210502 033  0.1+  0.1-    210508 691  0.6+  0.1-    240410 F51  0.1+  0.1+
210502 I93  0.8-  0.6-    210508 F51  0.1+  0.1+    240410 F51  0.2-  0.0
210502 I93  0.1+  0.4+    210508 F51  0.0   0.2-    240410 F51  0.0   0.2+
210502 204  0.5-  0.4+    210508 F51  0.0   0.3-    240430 I52  0.1+  0.0
210502 204 (0.8+  0.5+)   210508 F51  0.3-  0.6-    240430 I52  0.0   0.1+
210505 I52 (1.3+  0.7+)   210508 F51  0.2-  0.6-    240430 I52  0.1+  0.2+
210505 I52  0.1+  1.0-    210508 F51  0.0   0.2-    240430 I52  0.2+  0.1+
210505 I52  0.0   1.1-    210511 G96  0.1-  0.2+
210506 807  0.4-  0.5-    210511 G96  0.3+  0.1+

Ephemeris:
2021 JJ                  a,e,i = 1.31, 0.21, 8                   q = 1.0348
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 01    14 47 37.5 +17 15 30   0.1789  1.1457   142.1    32.4    23.4
...
2024 04 16    15 00 41.3 +13 50 25   0.1174  1.1051   148.3    28.5    22.3
...
2024 04 24    15 07 03.8 +08 22 50   0.08885 1.0863   154.0    23.9    21.6
...
2024 04 30    15 12 40.2 +00 45 06   0.06992 1.0737   161.2    17.6    20.8
2024 05 01    15 13 45.1 -00 58 13   0.06704 1.0718   162.8    16.2    20.7
2024 05 02    15 14 53.8 -02 51 14   0.06426 1.0698   164.4    14.6    20.5
...
2024 05 08    15 23 46.2 -18 19 15   0.05027 1.0593   174.3     5.4    19.6
...
2024 05 16    15 49 44.7 -50 13 25   0.04297 1.0480   148.7    30.1    20.1
...
2024 05 31    00 02 31.3 -79 39 33   0.06620 1.0358   107.6    68.9    22.1

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-J13





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