[Iaude] MPEC J18: 2021 JB [a=0.93,e=0.29,i=6.6,H=26.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun May 2 09:52:24 EDT 2021


M.P.E.C. 2021-J18                                   Issued 2021 May 2, 13:51 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 JB                                     


Observations:
     K21J00B* C2021 05 01.40566215 15 58.04 -07 58 02.0          18.24GVEJ018G96
     K21J00B  C2021 05 01.41121815 15 47.25 -07 59 33.3          18.56GVEJ018G96
     K21J00B  C2021 05 01.41676615 15 36.54 -08 01 04.1          19.18GVEJ018G96
     K21J00B  C2021 05 01.44294615 14 45.35 -08 08 17.8          18.4 GVEJ018H01
     K21J00B  C2021 05 01.44604715 14 39.49 -08 09 07.9          18.8 GVEJ018H01
     K21J00B KC2021 05 01.44823615 14 36.11 -08 09 37.2          18.92GVEJ018I52
     K21J00B KC2021 05 01.44881715 14 34.99 -08 09 46.0          18.68GVEJ018I52
     K21J00B KC2021 05 01.44939915 14 33.89 -08 09 55.8          18.30GVEJ018I52
     K21J00B  C2021 05 01.45368415 14 25.03 -08 11 11.4          18.9 GVEJ018H01
     K21J00B KC2021 05 01.45383515 14 25.46 -08 11 07.5          19.09GVEJ018I52
     K21J00B KC2021 05 01.45461915 14 23.98 -08 11 20.0          18.45GVEJ018I52
     K21J00B KC2021 05 01.45539515 14 22.51 -08 11 32.5          18.28GVEJ018I52
     K21J00B KC2021 05 01.95179515 01 00.25 -10 16 44.1          19.1 GXEJ018958
     K21J00B KC2021 05 01.96601915 00 36.71 -10 20 01.0          18.8 GXEJ018958
     K21J00B KC2021 05 01.98023215 00 13.21 -10 23 16.4          19.2 GXEJ018958
     K21J00B KC2021 05 02.02988714 58 51.55 -10 34 30.4          19.0 GVEJ018I93
     K21J00B KC2021 05 02.03758814 58 39.02 -10 36 13.0          19.5 GVEJ018I93
     K21J00B KC2021 05 02.04529514 58 26.54 -10 37 55.4          18.8 GVEJ018I93
     K21J00B KC2021 05 02.07804714 57 35.06 -10 45 28.9          19.4 GVEJ018J95
     K21J00B KC2021 05 02.08506914 57 23.94 -10 47 01.1          19.1 GVEJ018J95
     K21J00B KC2021 05 02.09080414 57 28.64 -10 41 48.6          18.6 GXEJ018Y00
     K21J00B KC2021 05 02.09440414 57 22.75 -10 42 37.3          19.5 GXEJ018Y00
     K21J00B KC2021 05 02.09816014 57 16.64 -10 43 26.7          19.3 GXEJ018Y00
     K21J00B KC2021 05 02.24711414 53 43.50 -11 20 16.8          18.86GVEJ018I52
     K21J00B KC2021 05 02.24885214 53 40.82 -11 20 38.8          18.95GVEJ018I52
     K21J00B KC2021 05 02.25059214 53 38.15 -11 21 00.8          18.57GVEJ018I52

Observer details:
958 Observatoire de Dax.  Observer P. Dupouy.  0.32-m Schmidt-Cassegrain +
    CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  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.  1.5-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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer K. W. Wierzchos.
    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.
I93 St Pardon de Conques.  Observers F. Losse, W. D'Anna.  Measurer F. Losse.
    0.40-m f/3.7 reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
    Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.

Orbital elements:
2021 JB                                                  Earth MOID = 0.0110 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 307.39192              (2000.0)            P               Q                  
n   1.09547902     Peri.   52.23602     -0.08672963     -0.99312092             
a   0.9319659      Node    42.94670     +0.87387074     -0.11375689             
e   0.2875153      Incl.    6.63050     +0.47835959     +0.02775277             
P   0.90           H   26.67          G   0.15           U   6                  
Residuals in seconds of arc
210501 G96  0.4-  0.2-    210501 I52  0.3-  0.1-    210502 J95  0.0   0.5+
210501 G96  0.2-  0.0     210501 I52  0.3-  0.1+    210502 J95  0.2-  0.2-
210501 G96  0.6+  0.3+    210501 I52  0.3-  0.0     210502 Y00  0.6-  0.6+
210501 H01  0.1-  0.0     210501 958  0.1+  0.3+    210502 Y00  0.8-  0.3-
210501 H01  0.4+  0.0     210501 958  0.1+  0.0     210502 Y00  0.6-  0.1+
210501 I52  0.1+  0.2-    210501 958  0.3-  0.3-    210502 I52  0.0   0.0
210501 I52  0.2-  0.3+    210502 I93  0.3+  0.0     210502 I52  0.0   0.1-
210501 I52  0.1-  0.0     210502 I93  0.1+  0.0     210502 I52  0.2+  0.2-
210501 H01  0.1-  0.1-    210502 I93  0.3+  0.2-

Ephemeris:
2021 JB                  a,e,i = 0.93, 0.29, 7                   q = 0.6640
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 02    00 09 40.3 +27 41 52   0.1283  0.8842    24.4   152.2    30.8
...
2021 04 17    23 21 50.7 +31 05 24   0.05447 0.9615    38.1   139.9    27.1
...
2021 04 25    21 01 00.0 +31 33 43   0.02093 0.9998    72.4   106.5    22.2
...
2021 05 01    15 29 11.2 -05 52 38   0.02006 1.0267   163.4    16.3    19.1
2021 05 02    14 59 40.1 -10 22 33   0.02350 1.0311   172.5     7.3    19.1
2021 05 03    14 37 29.7 -13 34 07   0.02733 1.0353   177.9     2.1    19.2
...
2021 05 09    13 35 35.6 -21 20 06   0.05384 1.0599   158.9    20.0    21.5
...
2021 05 17    13 12 17.6 -23 55 44   0.09259 1.0898   146.6    30.7    23.0
...
2021 06 01    13 07 37.7 -25 27 40   0.1705  1.1364   132.6    41.0    24.7

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J18




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