[Iaude] MPEC J144: 2021 JR3 [a=2.40,e=0.69,i=1.0,H=24.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon May 10 06:52:36 EDT 2021


M.P.E.C. 2021-J144                                 Issued 2021 May 10, 10:51 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 JR3                                    


Observations:
     K21J03R  C2021 05 01.31915 14 18 15.65 -14 26 21.7          21.4 GVEJ144G96
     K21J03R  C2021 05 01.32466 14 18 15.24 -14 26 17.9          20.8 GVEJ144G96
     K21J03R  C2021 05 01.33018 14 18 14.86 -14 26 14.6                VEJ144G96
     K21J03R* C2021 05 09.86348 13 47 38.33 -07 26 48.8          17.5 RoEJ144K88
     K21J03R  C2021 05 09.86414 13 47 37.58 -07 26 39.6          17.7 RoEJ144K88
     K21J03R  C2021 05 09.86479 13 47 36.89 -07 26 30.4          17.3 RoEJ144K88
     K21J03R  C2021 05 09.87752 13 47 22.97 -07 23 31.2          17.3 RoEJ144K88
     K21J03R  C2021 05 09.87789 13 47 22.55 -07 23 26.0          17.3 RoEJ144K88
     K21J03R  C2021 05 09.87826 13 47 22.14 -07 23 20.9          17.4 RoEJ144K88
     K21J03R  C2021 05 09.87863 13 47 21.72 -07 23 15.4          17.6 RoEJ144K88
     K21J03R  C2021 05 09.87900 13 47 21.35 -07 23 10.3          17.5 RoEJ144K88
     K21J03R  C2021 05 09.87937 13 47 20.92 -07 23 04.6          17.3 RoEJ144K88
     K21J03R  C2021 05 09.87974 13 47 20.52 -07 22 59.9          17.2 RoEJ144K88
     K21J03R  C2021 05 09.88011 13 47 20.11 -07 22 54.5          17.2 RoEJ144K88
     K21J03R  C2021 05 09.88047 13 47 19.71 -07 22 49.5          17.4 RoEJ144K88
     K21J03R hC2021 05 09.88394213 47 17.78 -07 21 49.4          17.5 GVEJ144L01
     K21J03R hC2021 05 09.88433513 47 17.36 -07 21 43.8          17.5 GVEJ144L01
     K21J03R hC2021 05 09.88498113 47 16.65 -07 21 34.5          17.9 GVEJ144L01
     K21J03R hC2021 05 09.88602013 47 15.49 -07 21 19.6          17.6 GVEJ144L01
     K21J03R hC2021 05 09.88641313 47 15.04 -07 21 14.0          17.6 GVEJ144L01
     K21J03R hC2021 05 09.88705913 47 14.31 -07 21 04.8          17.9 GVEJ144L01
     K21J03R hC2021 05 09.88757813 47 13.75 -07 20 57.4          17.7 GVEJ144L01
     K21J03R hC2021 05 09.88784513 47 13.44 -07 20 53.5          17.6 GVEJ144L01
     K21J03R KC2021 05 09.89105313 47 09.91 -07 20 10.2          17.4 GVEJ144595
     K21J03R KC2021 05 09.89248813 47 08.31 -07 19 49.4          17.5 GVEJ144595
     K21J03R KC2021 05 09.89392413 47 06.72 -07 19 29.0          17.6 GVEJ144595
     K21J03R KC2021 05 09.90682513 46 48.39 -07 16 32.0          17.5 GVEJ144L18
     K21J03R KC2021 05 09.90821513 46 46.81 -07 16 12.1          17.3 GVEJ144L18
     K21J03R KC2021 05 09.90960413 46 45.20 -07 15 52.6          17.4 GVEJ144L18
     K21J03R KC2021 05 09.91099313 46 43.69 -07 15 31.0          17.6 GVEJ144L18
     K21J03R KC2021 05 09.93695113 46 17.27 -07 09 21.2          17.5 GVEJ144K80
     K21J03R KC2021 05 09.94477913 46 08.31 -07 07 23.4          17.9 GVEJ144K80
     K21J03R KC2021 05 09.96742513 46 03.52 -06 54 21.6          17.4 GXEJ144Y00
     K21J03R KC2021 05 09.96806113 46 02.76 -06 54 11.8          17.3 GXEJ144Y00
     K21J03R KC2021 05 09.96869813 46 02.00 -06 54 01.8          17.4 GXEJ144Y00
     K21J03R  C2021 05 09.97739 13 45 28.72 -06 58 44.8          17.5 RoEJ144K88
     K21J03R  C2021 05 09.97775 13 45 28.29 -06 58 38.5          17.5 RoEJ144K88
     K21J03R  C2021 05 09.97812 13 45 27.86 -06 58 33.2          17.2 RoEJ144K88
     K21J03R  C2021 05 09.97849 13 45 27.43 -06 58 27.3          17.1 RoEJ144K88
     K21J03R  C2021 05 09.97891 13 45 26.93 -06 58 20.9          17.1 RoEJ144K88
     K21J03R KC2021 05 10.14538913 42 27.43 -06 11 08.4          17.7 VuEJ144H21
     K21J03R  C2021 05 10.14700413 42 34.42 -06 09 54.5          17.25GVEJ144I52
     K21J03R  C2021 05 10.14713713 42 34.23 -06 09 52.0          17.26GVEJ144I52
     K21J03R  C2021 05 10.14726813 42 34.06 -06 09 49.6          17.40GVEJ144I52
     K21J03R  C2021 05 10.14740013 42 33.87 -06 09 47.6          17.55GVEJ144I52
     K21J03R KC2021 05 10.14761313 42 24.32 -06 10 28.2          17.0 VuEJ144H21
     K21J03R KC2021 05 10.15091713 42 19.70 -06 09 28.1          17.5 VuEJ144H21
     K21J03R KC2021 05 10.15203613 42 18.12 -06 09 07.6          17.7 VuEJ144H21
     K21J03R KC2021 05 10.15296713 42 16.81 -06 08 50.5          17.6 VuEJ144H21

Observer details:
595 Farra d'Isonzo.  Observer E. Pettarin.  0.61-m f/4.5 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers B. Gray, D. Rankin, F.
    C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m
    reflector + CCD.
K80 Platanus Observatory, Lusowko.  Observer T. Kluwak.  0.28-m f/2.2 Schmidt
    + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
L18 QOS Observatory, Zalistci.  Observers Y. V. Tanasiychuk, Y. V. Shevchuk.
    Measurer A. M. Kozhukhov.  0.5-m f/3.8 reflector + 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 JR3                                                 Earth MOID = 0.0020 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 309.71941              (2000.0)            P               Q                  
n   0.26572697     Peri.   76.52735     +0.50488292     +0.86311035             
a   2.3961406      Node   223.80247     -0.79828258     +0.46178028             
e   0.6899573      Incl.    0.95740     -0.32838720     +0.20444926             
P   3.71           H   24.91          G   0.15           U   8                  
Residuals in seconds of arc
210501 G96  0.4-  0.1-    210509 L01  0.1+  0.1+    210509 Y00  0.0   0.5+
210501 G96  0.2-  0.2+    210509 L01  0.0   0.2+    210509 K88  0.2-  0.3-
210501 G96  0.5+  0.0     210509 L01  0.0   0.0     210509 K88  0.3-  0.4+
210509 K88  0.1+  0.0     210509 L01  0.3-  0.1+    210509 K88  0.2-  0.1-
210509 K88  0.4-  0.0     210509 L01  0.1-  0.1+    210509 K88  0.1-  0.0
210509 K88  0.2-  0.1+    210509 L01  0.2-  0.2+    210509 K88  0.2-  0.2-
210509 K88  0.1+  0.1-    210509 595  0.3-  0.0     210510 H21  0.2-  0.4+
210509 K88  0.1-  0.2-    210509 595  0.2-  0.2+    210510 I52  0.1+  0.0
210509 K88  0.2-  0.3-    210509 595  0.1+  0.1-    210510 I52  0.0   0.0
210509 K88  0.4-  0.0     210509 L18  0.8+  0.5+    210510 I52  0.1+  0.1+
210509 K88  0.2+  0.2-    210509 L18  0.6+  0.1+    210510 I52  0.0   0.3-
210509 K88  0.1-  0.3+    210509 L18  0.1-  0.7-    210510 H21  0.3-  0.2+
210509 K88  0.0   0.3-    210509 L18  0.7+  0.6+    210510 H21  0.1-  0.1+
210509 K88  0.0   0.2-    210509 K80  0.3-  0.1-    210510 H21  0.2-  0.2+
210509 K88  0.1-  0.3-    210509 K80  0.0   0.1-    210510 H21  0.2-  0.3+
210509 L01  0.3-  0.0     210509 Y00  0.0   0.3+
210509 L01  0.1-  0.0     210509 Y00  0.0   0.3+

Ephemeris:
2021 JR3                 a,e,i = 2.40, 0.69, 1                   q = 0.7429
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 10    14 22 34.9 -15 25 30   0.3559  1.3442   161.6    13.6    24.1
...
2021 04 25    14 21 31.1 -15 05 39   0.1799  1.1855   176.5     2.9    21.9
...
2021 05 03    14 16 40.1 -14 04 51   0.09413 1.1017   174.1     5.4    20.4
...
2021 05 09    13 57 58.2 -09 49 38   0.03211 1.0402   162.5    17.0    18.4
2021 05 10    13 45 14.7 -06 47 43   0.02202 1.0301   157.3    22.2    17.8
2021 05 11    13 12 26.5 +01 14 25   0.01227 1.0201   145.1    34.5    16.8
...
2021 05 17    02 44 08.8 +19 58 39   0.05091 0.9615    12.0   167.4    33.0
...
2021 05 25    02 33 57.5 +17 37 14   0.1348  0.8894    22.2   154.6    29.7
...
2021 06 09    02 40 35.0 +17 25 45   0.3057  0.7846    35.0   132.1    27.7

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J144




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