[Iaude] MPEC J187: 2021 JL5 [a=2.51,e=0.60,i=4.7,H=27.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed May 12 14:22:54 EDT 2021


M.P.E.C. 2021-J187                                 Issued 2021 May 12, 18:21 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 JL5                                    


Observations:
     K21J05L  C2021 05 09.27230 13 29 10.25 +00 54 31.6          21.4 GVEJ187G96
     K21J05L  C2021 05 09.27751 13 29 12.09 +00 53 49.1          21.3 GVEJ187G96
     K21J05L  C2021 05 09.28274 13 29 13.97 +00 53 06.8          21.4 GVEJ187G96
     K21J05L  C2021 05 10.24594 13 37 44.92 -01 41 29.8          21.0 GVEJ187G96
     K21J05L  C2021 05 10.25634 13 37 50.26 -01 43 27.9          20.9 GVEJ187G96
     K21J05L  C2021 05 10.26154 13 37 52.95 -01 44 26.0          21.7 GVEJ187G96
     K21J05L  C2021 05 11.31581 13 51 11.73 -05 47 42.9          20.7 GVEJ187G96
     K21J05L  C2021 05 11.32524 13 51 19.50 -05 50 21.4          21.1 GVEJ187G96
     K21J05L  C2021 05 11.32996 13 51 23.46 -05 51 42.6          20.8 GVEJ187G96
     K21J05L* C2021 05 12.29310614 10 26.45 -11 26 44.2          19.95GVEJ187G96
     K21J05L  C2021 05 12.29836214 10 33.37 -11 28 56.8          20.67GVEJ187G96
     K21J05L  C2021 05 12.30359914 10 40.43 -11 31 11.3          19.95GVEJ187G96
     K21J05L  C2021 05 12.30882714 10 47.39 -11 33 24.7          19.94GVEJ187G96
     K21J05L KC2021 05 12.34412914 11 35.25 -11 48 31.5          19.54GVEJ187I52
     K21J05L KC2021 05 12.34526414 11 36.81 -11 49 01.0          19.18GVEJ187I52
     K21J05L KC2021 05 12.34639414 11 38.35 -11 49 30.0          19.66GVEJ187I52
     K21J05L KC2021 05 12.34752614 11 39.93 -11 49 59.2          19.52GVEJ187I52
     K21J05L KC2021 05 12.51007014 16 07.35 -12 54 10.5          20.1 GVEJ187474
     K21J05L KC2021 05 12.51138514 16 09.35 -12 54 47.5          19.8 GVEJ187474
     K21J05L KC2021 05 12.51204414 16 10.33 -12 55 05.9          19.6 GVEJ187474
     K21J05L KC2021 05 12.51336414 16 12.37 -12 55 42.4          19.5 GVEJ187474

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
    Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
G96 Mt. Lemmon Survey.  Observers H. Groeller, K. W. Wierzchos.  Measurers E.
    J. Christensen, B. Gray, D. Rankin, F. C. Shelly, 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer T. A. Pruyne.
    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.

Orbital elements:
2021 JL5                                                 Earth MOID = 0.0077 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 318.67538              (2000.0)            P               Q                  
n   0.24858555     Peri.  204.08894     -0.24829331     +0.96652733             
a   2.5050638      Node    51.59893     -0.87482788     -0.19509215             
e   0.6030274      Incl.    4.72958     -0.41596467     -0.16662526             
P   3.96           H   27.73          G   0.15           U   8                  
Residuals in seconds of arc
210509 G96  0.6+  0.5-    210511 G96  0.1-  0.6+    210512 I52  0.0   0.1+
210509 G96  0.0   0.3-    210511 G96  0.7+  1.2-    210512 I52  0.2-  0.3+
210509 G96  0.2-  0.3+    210512 G96  0.3+  0.6-    210512 I52  0.1-  0.3+
210510 G96  0.0   0.4+    210512 G96  0.4-  0.6+    210512 474  0.5-  0.3+
210510 G96  0.4-  0.3-    210512 G96  0.9+  0.5-    210512 474  0.3-  0.1-
210510 G96  0.4-  0.5+    210512 G96  0.6+  0.4-    210512 474  0.6-  0.2-
210511 G96  0.3-  0.7+    210512 I52  0.1+  0.2+    210512 474  0.1-  0.3+

Ephemeris:
2021 JL5                 a,e,i = 2.51, 0.60, 5                   q = 0.9944
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 12    12 58 12.3 +10 11 40   0.1976  1.1904   160.4    16.4    25.5
...
2021 04 27    12 59 54.5 +09 50 31   0.1045  1.0978   149.6    27.7    24.3
...
2021 05 05    13 10 20.4 +06 40 35   0.05870 1.0581   146.8    31.5    23.0
...
2021 05 11    13 46 42.3 -04 20 53   0.02620 1.0339   155.3    24.1    21.0
2021 05 12    14 03 47.9 -09 24 55   0.02128 1.0303   160.7    18.9    20.4
2021 05 13    14 31 43.1 -17 13 38   0.01682 1.0269   168.7    11.1    19.6
...
2021 05 19    23 08 38.1 -35 13 06   0.02419 1.0099    85.0    93.6    23.0
...
2021 05 27    00 11 34.5 -22 31 35   0.06672 0.9965    73.7   102.6    25.6
...
2021 06 11    00 31 42.4 -17 50 49   0.1463  1.0021    80.7    91.0    26.8

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J187




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