[Iaude] MPEC J98: 2021 JK2 [a=0.89,e=0.30,i=3.7,H=24.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat May 8 07:57:11 EDT 2021


M.P.E.C. 2021-J98                                   Issued 2021 May 8, 11:55 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 JK2                                    


Observations:
     K21J02K  C2021 04 17.43553 16 42 15.32 +22 22 39.8          21.0 GVEJ098G96
     K21J02K  C2021 04 17.45293 16 42 04.55 +22 23 06.3          21.5 GVEJ098G96
     K21J02K* C2021 05 05.32934014 22 53.86 +22 07 41.1          21.80GVEJ098G96
     K21J02K  C2021 05 05.33452914 22 52.10 +22 07 34.9          21.48GVEJ098G96
     K21J02K  C2021 05 05.33973214 22 50.42 +22 07 29.5          21.63GVEJ098G96
     K21J02K  C2021 05 05.34492314 22 48.59 +22 07 22.6          21.29GVEJ098G96
     K21J02K  C2021 05 05.36289914 22 42.34 +22 06 59.9          21.6 GVEJ098H01
     K21J02K  C2021 05 05.36633414 22 41.19 +22 06 55.7          21.4 GVEJ098H01
     K21J02K  C2021 05 05.37913214 22 36.91 +22 06 40.6          21.8 GVEJ098H01
     K21J02K  C2021 05 05.38360314 22 35.42 +22 06 35.3          22.0 GVEJ098H01
     K21J02K KC2021 05 06.13103314 18 51.74 +21 52 28.1          22.3 VuEJ098H21
     K21J02K KC2021 05 06.13772614 18 49.58 +21 52 20.5          22.1 VuEJ098H21
     K21J02K KC2021 05 06.17845814 18 38.11 +21 51 39.9          22.28GVEJ098V06
     K21J02K KC2021 05 06.18203814 18 36.96 +21 51 36.0          21.96GVEJ098V06
     K21J02K KC2021 05 06.18562114 18 35.80 +21 51 32.1          22.41GVEJ098V06
     K21J02K KC2021 05 06.18920214 18 34.68 +21 51 28.5          22.11GVEJ098V06
     K21J02K  C2021 05 06.32971114 17 49.16 +21 48 46.1          21.1 GVEJ098H01
     K21J02K  C2021 05 06.33293914 17 48.12 +21 48 42.6          21.4 GVEJ098H01
     K21J02K  C2021 05 06.34342614 17 44.77 +21 48 29.9          21.2 GVEJ098H01
     K21J02K  C2021 05 06.34633 14 17 44.06 +21 48 28.6          22.5 GVEJ098G96
     K21J02K  C2021 05 06.35089514 17 42.39 +21 48 20.6          21.5 GVEJ098H01
     K21J02K  C2021 05 06.35101 14 17 42.56 +21 48 23.1          21.7 GVEJ098G96
     K21J02K  C2021 05 06.35572 14 17 41.02 +21 48 17.1          21.0 GVEJ098G96
     K21J02K  C2021 05 08.30725914 08 36.96 +21 09 10.6          21.4 GVEJ098H01
     K21J02K  C2021 05 08.31097014 08 35.89 +21 09 05.8          21.4 GVEJ098H01
     K21J02K  C2021 05 08.32264614 08 32.55 +21 08 50.7          21.1 GVEJ098H01
     K21J02K  C2021 05 08.33408814 08 29.27 +21 08 36.0          21.6 GVEJ098H01

Observer details:
G96 Mt. Lemmon Survey.  Observers K. W. Wierzchos, D. Rankin, H. Groeller.
    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.
V06 Catalina Sky Survey-Kuiper.  Observer G. J. Leonard.  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.  1.55-m reflector +
    1K CCD.

Orbital elements:
2021 JK2                                                 Earth MOID = 0.0350 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 334.04281              (2000.0)            P               Q                  
n   1.18353488     Peri.  281.14669     +0.39229027     -0.91912033             
a   0.8851469      Node   145.68425     +0.86714278     +0.35631772             
e   0.2970355      Incl.    3.70369     +0.30687416     +0.16809372             
P   0.83           H   24.77          G   0.15           U   7                  
Residuals in seconds of arc
210417 G96  0.1-  0.1-    210505 H01  0.1-  0.0     210506 H01  0.0   0.0
210417 G96  0.1+  0.1+    210506 H21  0.2-  0.5+    210506 G96  0.1+  0.0
210505 G96  0.1-  0.1+    210506 H21  0.4-  0.1+    210506 H01  0.0   0.1-
210505 G96  0.2-  0.2-    210506 V06  0.1+  0.1+    210506 G96  0.1+  0.2+
210505 G96  0.9+  0.3+    210506 V06  0.0   0.1+    210506 G96  0.4-  0.1-
210505 G96  0.2-  0.6-    210506 V06  0.2-  0.0     210508 H01  0.2+  0.0
210505 H01  0.0   0.1+    210506 V06  0.2+  0.2+    210508 H01  0.0   0.0
210505 H01  0.0   0.0     210506 H01  0.1+  0.3-    210508 H01  0.1+  0.1-
210505 H01  0.0   0.1+    210506 H01  0.0   0.0     210508 H01  0.1-  0.0

Ephemeris:
2021 JK2                 a,e,i = 0.89, 0.30, 4                   q = 0.6222
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 08    18 11 22.2 +16 16 44   0.08565 1.0213   101.1    74.1    22.1
...
2021 04 23    15 50 11.3 +23 51 08   0.09493 1.0748   135.1    41.3    21.4
...
2021 05 01    14 48 17.5 +23 16 46   0.1121  1.0975   141.5    34.8    21.7
...
2021 05 07    14 14 36.4 +21 35 57   0.1295  1.1118   140.4    35.4    22.0
2021 05 08    14 10 00.0 +21 15 47   0.1327  1.1140   139.9    35.7    22.1
2021 05 09    14 05 39.6 +20 54 59   0.1360  1.1161   139.3    36.2    22.2
...
2021 05 15    13 44 40.8 +18 41 48   0.1571  1.1272   134.9    39.5    22.6
...
2021 05 23    13 27 34.7 +15 37 50   0.1881  1.1384   128.2    44.4    23.1
...
2021 06 07    13 16 35.1 +10 11 00   0.2507  1.1478   116.2    52.5    24.0

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J98




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