• MPC Preparation (Info)

  • MPEC 2023-X110 : 2011 YJ28

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    M.P.E.C. 2023-X110                             Issued 2023 December 6, 14:09 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets, routine data on comets and natural satellites,
             and occasional editorial announcements.  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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2011 YJ28                                
    
    
                               Revision to MPEC 2011-Y55                            
    
    Additional Observations:
         K11Y28J 0C2014 09 19.22656115 46 08.886-14 57 25.25         24.33GVEX110T12
         K11Y28J 0C2021 11 01.62945610 47 29.736+07 23 04.62         23.36GVEX110T14
         K11Y28J 0C2023 05 26.59272623 54 24.003-05 54 24.30         22.07GVEX110T14
         K11Y28J 0C2023 05 26.59416623 54 24.167-05 54 19.32         22.20GVEX110T14
         K11Y28J 0C2023 05 26.59560923 54 24.330-05 54 14.36         22.15GVEX110T14
         K11Y28J  C2023 11 26.61895010 45 51.128+52 11 08.79         20.77GVEX110F52
         K11Y28J  C2023 11 26.62159110 45 51.219+52 11 05.14         21.37GVEX110F52
         K11Y28J KC2023 12 05.52098410 49 05.329+48 50 36.10         20.94GVEX110I52
         K11Y28J KC2023 12 05.52546110 49 05.268+48 50 29.15         21.00GVEX110I52
         K11Y28J KC2023 12 05.52855510 49 05.174+48 50 24.90         20.89GVEX110I52
         K11Y28J KC2023 12 05.53165110 49 05.232+48 50 19.64         20.75GVEX110I52
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
        Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
        Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
        Weryk.  1.8-m Ritchey-Chretien + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
        Measurers E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G.
        J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
        prime focus + CCD.
    T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
        2.24-m f/10.1 reflector + 1024 x 1024 pixels Tektronix 2048 CCD.
    T14 Canada-France-Hawaii Telescope, Maunakea.  Observers L. Wells, H.
        Januszewski.  Measurer D. J. Tholen.  3.6-m f/4.1 reflector + 1024 x 2306
        pixels Megacam.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    140919 T12 0.11- 0.08-    231205 I52 0.10- 2.10-    E2023-QE4   -0.82 days
    
    Orbital elements:
    2011 YJ28                                           PHA, Earth MOID = 0.0200 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 138.24829              (2000.0)            P               Q                  
    n   0.90323420     Peri.  305.98136     -0.47466478     +0.76936527             
    a   1.0599103      Node   290.10250     -0.58686241     -0.63864131             
    e   0.0925253      Incl.   27.08107     -0.65596178     +0.01464108             
    P   1.09           H   21.24          G   0.15           U   0                  
    Residuals in seconds of arc
    111227 703  1.0-  0.8-    111231 703  0.1+  0.4-    120107 300  0.2+  1.4-
    111227 703  0.0   0.8+    111231 703  0.4-  1.4-    120107 300  0.2+  0.8+
    111227 703  0.6-  0.4-    120101 H21  0.1+  0.3-    120107 300  0.8+  0.3-
    111227 703  1.2-  0.4-    120101 H21  0.4+  0.4+    120107 300  0.6+  0.4+
    111227 703  0.0   0.1-    120101 H21  0.2-  0.0     120110 160 (1.8+  1.8+)
    111227 703  1.7-  0.5-    120101 291  0.2-  0.2+    120110 160  0.1-  0.0
    111227 703  0.0   0.4-    120101 291  0.4-  0.1-    120110 160  0.4+  0.2+
    111227 104  0.4-  0.2+    120101 291  0.5-  0.4+    120114 448  0.7+  0.2+
    111227 104  0.2-  0.9-    120102 448  0.2+  0.2-    120114 448  0.3+  0.1+
    111227 104  1.0-  0.4+    120102 448  0.5-  0.9-    120114 448  0.9-  0.1+
    111228 595  0.2+  0.5+    120102 448  0.2+  0.0     120114 448  0.2+  0.1-
    111228 I93  0.7-  0.0     120102 448  0.2+  0.2-    120114 291  0.3+  0.4-
    111228 I93  0.3-  0.4+    120103 H21  0.1+  0.2-    120114 291  0.6+  0.2+
    111228 I93  0.2+  0.3+    120103 H21  0.1+  0.3-    120114 291  0.5+  0.2+
    111228 595  0.4-  0.1+    120103 H21  0.1-  0.2-    120118 695  0.2+  0.3+
    111228 204  0.0   0.1+    120103 H21  0.1+  0.3-    120118 695  0.2+  0.4+
    111228 204  0.2+  0.0     120103 H21  0.3+  0.2+    120118 695  0.3+  0.4+
    111228 204  0.1-  0.0     120105 H21  0.1+  0.2-    120118 695  0.3+  0.2+
    111228 854  0.5-  0.4-    120105 H21  0.2-  0.3-    120122 807  1.1-  0.0
    111228 854  0.5+  0.5-    120105 H21  0.1+  0.1+    120122 807  1.0-  0.0
    111228 854  0.8-  0.3+    120105 H21  0.1-  0.1-    120122 807  0.9-  0.1-
    111229 291  0.1+  0.0     120105 H21  0.0   0.2-    120122 807  0.9-  0.0
    111229 291  0.0   0.1-    120106 H21  0.1-  0.1-    120130 807  0.1-  0.3+
    111229 291  0.2+  0.1+    120106 H21  0.0   0.2-    120130 807  0.1-  0.2-
    111230 291  0.2+  0.1-    120106 H21  0.3-  0.0     120130 807  0.3+  0.1+
    111230 291  0.3+  0.1+    120106 H21  0.1+  0.4-    140919 T12  0.0   0.1-
    111230 291  0.4+  0.2+    120106 H21  0.0   0.3-    211101 T14  0.0   0.0
    111231 291  0.3+  0.2+    120106 H21  0.1+  0.2-    230526 T14  0.0   0.0
    111231 291  0.2+  0.1-    120106 300  0.4+  0.1+    230526 T14  0.0   0.0
    111231 291  0.2+  0.0     120106 300  0.2-  0.7+    230526 T14  0.0   0.0
    111231 448  0.1+  0.2+    120106 300  0.1+  0.3-    231126 F52  0.2+  0.4+
    111231 448  0.1-  0.4-    120106 300  0.5+  0.7-    231126 F52  0.2+  0.2-
    111231 448  0.1-  0.1+    120107 204  0.1+  0.1+    231205 I52  0.0   0.1+
    111231 448  0.0   0.9-    120107 204  0.1-  0.3-    231205 I52  0.0   0.1-
    111231 448  0.1+  0.2-    120107 204  0.4+  0.1-    231205 I52  0.5-  0.2+
    111231 703  1.0-  0.4-    120107 300  0.7+  1.3-    231205 I52  0.5+  0.4-
    111231 703  0.4-  0.8-    120107 300  1.3+  0.1-
    
    Ephemeris:
    2011 YJ28                a,e,i = 1.06, 0.09, 27                  q = 0.9618
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 11 06    10 16 24.6 +58 15 14   0.5699  1.1574    91.6    58.9    22.5
    ...
    2023 11 21    10 40 38.4 +53 59 57   0.4744  1.1527    97.8    58.1    22.0
    ...
    2023 11 29    10 47 20.4 +51 21 22   0.4177  1.1484   102.0    57.2    21.7
    ...
    2023 12 05    10 49 04.9 +49 03 33   0.3734  1.1444   105.7    56.0    21.4
    2023 12 06    10 49 03.5 +48 38 21   0.3659  1.1436   106.3    55.8    21.4
    2023 12 07    10 48 56.2 +48 12 23   0.3584  1.1429   107.0    55.5    21.3
    ...
    2023 12 13    10 45 55.3 +45 16 13   0.3131  1.1380   111.7    53.5    21.0
    ...
    2023 12 21    10 34 29.1 +39 55 54   0.2534  1.1305   119.5    49.2    20.4
    ...
    2024 01 05    09 39 58.0 +19 17 09   0.1588  1.1136   142.6    32.4    18.8
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X110
    


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