[Iaude] MPEC J99: 2021 JL2 [a=2.26,e=0.57,i=19.6,H=21.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat May 8 07:58:56 EDT 2021


M.P.E.C. 2021-J99                                   Issued 2021 May 8, 11:57 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 JL2                                    


Observations:
     K21J02L* C2021 05 05.46237718 01 59.90 +25 43 34.2          20.40GVEJ099G96
     K21J02L  C2021 05 05.46761318 02 01.19 +25 43 56.4          21.13GVEJ099G96
     K21J02L  C2021 05 05.47287018 02 02.39 +25 44 18.3          20.56GVEJ099G96
     K21J02L mC2021 05 06.44121518 06 02.42 +26 52 54.5          21.09GVEJ099G96
     K21J02L  C2021 05 06.44182418 06 02.59 +26 52 57.4          21.63GVEJ099G96
     K21J02L mC2021 05 06.44649918 06 03.71 +26 53 17.4          21.40GVEJ099G96
     K21J02L  C2021 05 06.44711318 06 03.85 +26 53 20.1          21.14GVEJ099G96
     K21J02L  C2021 05 06.45236818 06 05.12 +26 53 42.4          20.89GVEJ099G96
     K21J02L mC2021 05 06.45701018 06 06.25 +26 54 02.0          21.03GVEJ099G96
     K21J02L  C2021 05 06.45762218 06 06.40 +26 54 04.8          20.81GVEJ099G96
     K21J02L KC2021 05 07.33942718 09 50.93 +27 56 44.7          20.82GVEJ099I52
     K21J02L KC2021 05 07.34446518 09 52.16 +27 57 05.7          21.20GVEJ099I52
     K21J02L KC2021 05 07.34698218 09 52.75 +27 57 17.0          22.15GVEJ099I52
     K21J02L hC2021 05 08.01735818 12 45.85 +28 44 57.1          21.1 GVEJ099L01
     K21J02L hC2021 05 08.04106618 12 51.85 +28 46 38.6          21.3 GVEJ099L01
     K21J02L hC2021 05 08.04731118 12 53.52 +28 47 05.5          21.2 GVEJ099L01
     K21J02L hC2021 05 08.05355518 12 55.04 +28 47 32.9          21.3 GVEJ099L01
     K21J02L KC2021 05 08.31924818 14 04.76 +29 06 30.6                uEJ099H21
     K21J02L KC2021 05 08.32181218 14 05.89 +29 06 42.4                VEJ099I52
     K21J02L KC2021 05 08.32283118 14 05.68 +29 06 46.1          20.9 VuEJ099H21
     K21J02L KC2021 05 08.32505818 14 06.23 +29 06 55.7          21.1 VuEJ099H21
     K21J02L KC2021 05 08.32517218 14 06.78 +29 06 57.5                VEJ099I52
     K21J02L KC2021 05 08.32651018 14 06.58 +29 07 01.9          20.8 VuEJ099H21
     K21J02L  C2021 05 08.34319418 14 11.33 +29 08 14.3          20.9 GVEJ099H01
     K21J02L  C2021 05 08.35011418 14 13.10 +29 08 44.0          20.9 GVEJ099H01
     K21J02L KC2021 05 08.35073818 14 13.31 +29 08 47.1          21.30GVEJ099I52
     K21J02L  C2021 05 08.35936318 14 15.45 +29 09 23.8          21.2 GVEJ099H01
     K21J02L  C2021 05 08.36442018 14 16.74 +29 09 45.6          20.9 GVEJ099H01

Observer details:
G96 Mt. Lemmon Survey.  Observers D. Rankin, H. Groeller.  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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  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.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2021 JL2                                                 Earth MOID = 0.1632 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 301.77824              (2000.0)            P               Q                  
n   0.29088057     Peri.  111.32660     +0.50394950     +0.86193865             
a   2.2559332      Node   189.53193     -0.86310188     +0.50007228             
e   0.5662168      Incl.   19.63592     -0.03301589     +0.08360307             
P   3.39           H   21.14          G   0.15           U   9                  
Residuals in seconds of arc
210505 G96  0.7-  0.0     210507 I52  0.5+  0.1+    210508 H21  0.0   0.3+
210505 G96  0.0   0.1+    210507 I52  0.2+  0.5-    210508 I52  0.4-  0.6+
210505 G96  0.5-  0.3-    210507 I52  0.3-  0.1-    210508 H21  0.3-  0.3+
210506 G96  0.1-  0.4-    210508 L01  0.2+  0.2-    210508 H01  0.1+  0.0
210506 G96  0.2+  0.1-    210508 L01  0.0   0.5-    210508 H01  0.2+  0.1-
210506 G96  0.1+  0.0     210508 L01  1.1+  0.4-    210508 I52  0.4-  0.0
210506 G96  0.1-  0.1+    210508 L01  0.3+  0.2+    210508 H01  0.0   0.1-
210506 G96  0.1-  0.0     210508 H21  0.1+  0.2+    210508 H01  0.1+  0.1-
210506 G96  0.0   0.1-    210508 I52  0.8-  0.0
210506 G96  0.1+  0.0     210508 H21  0.2+  0.3+

Ephemeris:
2021 JL2                 a,e,i = 2.26, 0.57, 20                  q = 0.9786
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 08    16 36 36.7 -00 09 34   0.6033  1.4482   127.2    33.4    22.2
...
2021 04 23    17 17 48.9 +12 03 44   0.4663  1.3323   125.7    37.8    21.6
...
2021 05 01    17 44 45.1 +20 33 40   0.4162  1.2725   120.9    42.8    21.4
...
2021 05 07    18 08 23.2 +27 32 36   0.3900  1.2292   115.7    47.7    21.3
2021 05 08    18 12 40.5 +28 43 47   0.3865  1.2222   114.7    48.6    21.3
2021 05 09    18 17 04.5 +29 55 02   0.3834  1.2152   113.7    49.6    21.3
...
2021 05 15    18 46 02.4 +36 56 15   0.3696  1.1743   107.2    55.3    21.3
...
2021 05 23    19 32 40.1 +45 22 49   0.3641  1.1236    98.2    63.1    21.4
...
2021 06 07    21 26 00.2 +55 28 46   0.3815  1.0443    83.7    75.0    21.8

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J99




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