[Iaude] MPEC L96: 2021 US11 [a=1.56,e=0.20,i=16.0,H=20.19]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Jun 12 10:09:08 EDT 2022


M.P.E.C. 2022-L96                                 Issued 2022 June 12, 14:07 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 US11                                    


                           Revision to MPEC 2021-V86                            

Additional Observations:
     K21U11S  C2007 09 04.24137 21 37 05.73 -16 26 08.3          21.7 VrEL096G96
     K21U11S  C2007 09 04.24451 21 37 05.55 -16 26 12.2          21.8 VrEL096G96
     K21U11S  C2007 09 04.24765 21 37 05.34 -16 26 16.5          21.2 VrEL096G96
     K21U11S  C2007 09 04.25081 21 37 05.19 -16 26 19.6          21.1 VrEL096G96
     K21U11S  C2011 06 08.58825923 17 28.257+01 44 20.20         22.47GVEL096F51
     K21U11S  C2011 06 08.59220823 17 28.620+01 44 20.91         22.51GVEL096F51
     K21U11S  C2011 06 08.59616823 17 29.000+01 44 22.06         22.97GVEL096F51
     K21U11S  C2011 06 08.60011523 17 29.361+01 44 22.94         22.89GVEL096F51
     K21U11S  C2011 08 23.50769800 04 32.039-08 09 20.12         21.35GVEL096F51
     K21U11S  C2011 08 23.51836300 04 31.525-08 09 33.80         21.14GVEL096F51
     K21U11S  C2011 08 27.52155300 01 15.583-09 37 01.48         21.78GVEL096F51
     K21U11S  C2011 08 27.53550500 01 14.760-09 37 20.24         22.25GVEL096F51
     K21U11S  C2011 08 27.54952200 01 13.949-09 37 38.77         22.59GVEL096F51
     K21U11S KC2011 08 28.51332000 00 21.758-09 59 05.26         21.89GVEL096F51
     K21U11S  C2011 09 20.40765723 34 01.157-18 02 01.76         22.21GVEL096F51
     K21U11S KC2011 10 03.33994923 19 55.869-21 07 21.38         21.89GVEL096F51
     K21U11S  C2015 09 21.45821601 28 27.779-12 36 12.20         22.39GVEL096F51
     K21U11S  C2015 09 21.47109901 28 26.994-12 36 27.84         21.80GVEL096F51
     K21U11S  C2017 08 01.59019701 58 41.172+01 47 58.30         22.64GVEL096F51
     K21U11S  C2017 08 01.59877701 58 41.749+01 47 54.60         22.99GVEL096F51
     K21U11S  C2017 08 01.60730501 58 42.327+01 47 51.85         22.88GVEL096F51
     K21U11S  C2017 09 14.51352902 21 30.402-07 20 11.25         22.24GVEL096F51
     K21U11S  C2017 09 14.52474102 21 30.199-07 20 23.66         23.39GVEL096F51
     K21U11S  C2017 09 14.53594702 21 29.924-07 20 36.12         22.31GVEL096F51
     K21U11S  C2017 10 01.54033602 10 27.976-12 47 02.26         22.64GVEL096F51
     K21U11S  C2017 10 10.50001602 00 31.474-15 27 29.95         22.48GVEL096F51
     K21U11S  C2017 10 10.50998502 00 30.734-15 27 39.82         21.96GVEL096F51
     K21U11S  C2017 12 08.22832201 13 00.393-17 24 28.46         23.03GVEL096F51
     K21U11S  C2017 12 08.23952301 13 00.473-17 24 21.59         23.32GVEL096F51
     K21U11S KC2018 01 15.26754801 41 41.786-09 06 46.01         21.95GVEL096F51
     K21U11S  C2019 09 10.55925803 02 46.627-03 21 00.76         22.50GVEL096F51
     K21U11S  C2019 09 10.57191203 02 46.817-03 21 12.36         23.10GVEL096F51
     K21U11S  C2019 09 10.59701703 02 47.234-03 21 34.47         22.81GVEL096F51
     K21U11S  C2019 10 06.50285702 57 15.688-10 50 44.89         22.24GVEL096F51
     K21U11S  C2019 10 06.52726102 57 14.487-10 51 11.43         22.02GVEL096F51
     K21U11S  C2019 10 06.54696002 57 13.507-10 51 33.06         21.80GVEL096F51
     K21U11S  C2019 10 06.55876402 57 12.925-10 51 46.11         21.97GVEL096F51
     K21U11S  C2019 10 06.57060802 57 12.318-10 51 58.81         21.84GVEL096F51
     K21U11S  C2019 10 06.58242102 57 11.743-10 52 11.91         21.92GVEL096F51
     K21U11S  C2019 10 28.41183802 32 42.901-16 35 43.58         21.87GVEL096F52
     K21U11S  C2019 11 03.40213202 24 31.659-17 35 11.22         21.89GVEL096F51
     K21U11S  C2019 11 03.41307602 24 30.739-17 35 16.84         21.62GVEL096F51
     K21U11S  C2019 11 03.42404302 24 29.802-17 35 22.23         21.89GVEL096F51
     K21U11S  C2019 11 03.43497202 24 28.862-17 35 27.64         22.23GVEL096F51
     K21U11S  C2019 11 30.34446201 55 47.274-17 51 38.35         22.69GVEL096F52
     K21U11S  C2019 11 30.37027501 55 46.248-17 51 28.83         22.22GVEL096F51
     K21U11S  C2019 11 30.38184501 55 45.791-17 51 24.17         21.70GVEL096F51
     K21U11S KC2019 12 16.29362801 51 17.191-15 26 27.39         23.08GVEL096F51
     K21U11S  C2019 12 24.23675501 52 47.707-13 48 22.21         23.45GVEL096F52
     K21U11S  C2019 12 24.24975501 52 47.931-13 48 11.64         23.38GVEL096F52
     K21U11S  C2019 12 24.26274001 52 48.178-13 48 01.51         23.69GVEL096F52
     K21U11S  C2021 10 05.50415603 45 03.456-07 27 18.67         21.75GVEL096F52
     K21U11S  C2021 10 05.52847803 45 02.954-07 27 43.44         20.22GVEL096F52
     K21U11S  C2021 10 14.56703703 40 37.942-10 03 52.18         22.51GVEL096F51
     K21U11S  C2021 10 14.57806403 40 37.444-10 04 03.23         22.19GVEL096F51
     K21U11S  C2021 10 27.47165203 28 28.431-13 30 37.73         21.76GVEL096F52
     K21U11S  C2021 11 07.44307003 14 07.676-15 42 42.09         22.24GVEL096F52
     K21U11S  C2021 11 07.45401103 14 06.702-15 42 48.10         21.93GVEL096F52
     K21U11S  C2021 11 07.46494503 14 05.729-15 42 54.27         22.11GVEL096F52
     K21U11S  C2021 11 07.47593903 14 04.777-15 43 00.29         22.02GVEL096F52
     K21U11S  C2021 11 26.35162302 48 32.974-16 55 20.55         22.30GVEL096F52
     K21U11S  C2021 11 26.36182102 48 32.234-16 55 19.43         21.97GVEL096F52

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, P.
    VanWylen, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y.
    Ramanjooloo, P. VanWylen, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien
    + CCD.
G96 Mt. Lemmon Survey.  Observer S. M. Larson.  Measurers E. C. Beshore, A.
    Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A.
    Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
070904 G96 0.03+ 0.00+    211126 F52 0.00+ 0.00+    MPO666457   +0.08 days

Orbital elements:
2021 US11                                                Earth MOID = 0.3060 AU
Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                  Veres                   
M 357.31314              (2000.0)            P               Q                  
n   0.50599886     Peri.   47.67569     -0.94157725     +0.30603460             
a   1.5596831      Node   149.34511     -0.32704380     -0.93055257             
e   0.1955088      Incl.   16.01004     +0.08046510     -0.20103415             
P   1.95           H   20.19          G   0.15           U   1                  
Residuals in seconds of arc
070904 G96  0.0   0.3+    171208 F51  0.2-  0.1+    211014 F51  0.1+  0.0
070904 G96  0.1+  0.1+    171208 F51  0.3-  0.2+    211027 F52  0.0   0.3-
070904 G96  0.2-  0.6-    180115 F51  0.2-  0.1+    211031 F51  0.1+  0.0
070904 G96  0.3+  0.0     190910 F51  0.1+  0.0     211031 F51  0.1-  0.1+
110608 F51  0.0   0.1+    190910 F51  0.1-  0.2-    211031 F51  0.0   0.1-
110608 F51  0.2-  0.1-    190910 F51  0.1+  0.3+    211031 F51  0.0   0.0
110608 F51  0.1-  0.3+    191006 F51  0.0   0.0     211031 F51  0.0   0.1-
110608 F51  0.2-  0.3+    191006 F51  0.1+  0.2+    211103 807  0.1+  0.5-
110823 F51  0.1+  0.1-    191006 F51  0.0   0.1+    211103 807  0.1+  0.3-
110823 F51  0.1+  0.0     191006 F51  0.1+  0.0     211103 807  0.1+  0.2-
110827 F51  0.4+  0.3+    191006 F51  0.2-  0.3+    211103 568  0.1+  0.0
110827 F51  0.1+  0.1+    191006 F51  0.1-  0.1+    211103 568  0.0   0.0
110827 F51  0.0   0.2+    191028 F52  0.3+  0.0     211103 568  0.0   0.0
110828 F51  0.1-  0.1-    191103 F51  0.2-  0.0     211104 291  0.0   0.0
110920 F51  0.1-  0.2-    191103 F51  0.1+  0.2-    211104 291  0.4-  0.1-
111003 F51  0.3-  0.1-    191103 F51  0.1+  0.1-    211107 F52  0.1+  0.1-
150921 F51  0.2-  0.1+    191103 F51  0.0   0.2-    211107 F52  0.0   0.1+
150921 F51  0.0   0.2+    191130 F52  0.1-  0.2+    211107 F52  0.2-  0.0
170801 F51  0.2+  0.3+    191130 F51  0.0   0.0     211107 F52  0.0   0.1+
170801 F51  0.1+  0.3-    191130 F51  0.1+  0.2+    211111 291  0.2+  0.0
170801 F51  0.2+  0.0     191216 F51  0.0   0.0     211111 291  0.6-  0.0
170914 F51  0.2-  0.2-    191224 F52  0.1-  0.4-    211111 291  0.2-  0.7+
170914 F51  0.3+  0.2-    191224 F52  0.1-  0.0     211126 F52  0.2-  0.0
170914 F51  0.3-  0.2-    191224 F52  0.2+  0.1-    211126 F52  0.1+  0.1+
171001 F51  0.1-  0.0     211005 F52  0.4-  0.2-    211209 807  0.1-  0.2-
171010 F51  0.2-  0.1-    211005 F52  0.4-  0.1+    211209 807  0.1+  0.2-
171010 F51  0.2+  0.1-    211014 F51  0.1+  0.2-    211209 807  0.3+  0.4-

Ephemeris:
2021 US11                a,e,i = 1.56, 0.20, 16                  q = 1.2548
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2022 05 13    06 37 53.6 +19 19 56   1.8655  1.3917    47.1    32.1    23.6
...
2022 05 28    07 23 46.7 +20 12 47   1.9018  1.3555    43.3    30.8    23.6
...
2022 06 05    07 49 05.9 +20 18 23   1.9178  1.3376    41.4    30.1    23.5
...
2022 06 11    08 08 23.0 +20 11 54   1.9285  1.3251    40.1    29.6    23.5
2022 06 12    08 11 37.1 +20 09 56   1.9301  1.3231    39.9    29.5    23.5
2022 06 13    08 14 51.5 +20 07 42   1.9318  1.3211    39.7    29.4    23.5
...
2022 06 19    08 34 23.8 +19 48 57   1.9412  1.3096    38.5    28.9    23.5
...
2022 06 27    09 00 40.0 +19 09 41   1.9525  1.2958    37.1    28.2    23.5
...
2022 07 12    09 50 16.2 +17 13 34   1.9708  1.2747    34.7    27.0    23.4

A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-L96




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