• MPC Preparation (Info)

  • MPEC 2023-O31 : 2009 CZ2

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2023-O30 Read MPEC 2023-O32


    M.P.E.C. 2023-O31                                 Issued 2023 July 18, 14:08 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
    
                                    2009 CZ2                                 
    
    
                               Revision to MPEC 2009-C52                            
    
    Additional Observations:
         K09C02Z  C2023 06 16.58196622 10 06.442-27 47 24.12         21.78GVEO031F52
         K09C02Z  C2023 06 16.58833322 10 06.614-27 47 24.43         22.01GVEO031F52
         K09C02Z  C2023 06 16.59469122 10 06.736-27 47 25.37         22.10GVEO031F52
         K09C02Z  C2023 06 22.56307722 12 03.455-28 00 27.87         21.46GVEO031F51
         K09C02Z  C2023 06 22.57337022 12 03.574-28 00 29.42         22.14GVEO031F51
         K09C02Z  C2023 06 22.58771322 12 03.727-28 00 31.79         22.68GVEO031F51
         K09C02Z  C2023 06 22.59796922 12 03.856-28 00 33.32         22.50GVEO031F51
         K09C02Z  C2023 06 30.54996722 12 54.562-28 26 26.52         21.72GVEO031F51
         K09C02Z  C2023 06 30.56131422 12 54.504-28 26 29.19         22.24GVEO031F51
         K09C02Z  C2023 06 30.57269222 12 54.450-28 26 31.78         21.62GVEO031F51
         K09C02Z  C2023 06 30.58402222 12 54.417-28 26 34.39         21.76GVEO031F51
         K09C02Z  C2023 07 16.52587022 06 48.545-29 47 30.45         21.58wXEO031F51
         K09C02Z  C2023 07 16.53720022 06 47.973-29 47 34.65         21.78wXEO031F51
         K09C02Z  C2023 07 16.54858922 06 47.397-29 47 38.53         21.29wXEO031F51
         K09C02Z  C2023 07 16.55985622 06 46.837-29 47 42.97         21.40wXEO031F51
         K09C02Z 2C2023 07 17.07854822 06 22.355-29 50 55.36         21.1 GVEO031J04
         K09C02Z 2C2023 07 17.08627222 06 21.951-29 50 58.39         21.0 GVEO031J04
         K09C02Z 2C2023 07 17.09400622 06 21.519-29 51 01.45         21.0 GVEO031J04
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, P.
        Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M.
        Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, J.
        Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, A. Schultz, I.
        Smith.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, P. Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J.
        Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m
        Ritchey-Chretien + CCD.
    J04 ESA Optical Ground Station, Tenerife.  Observers P. Ruiz, M. Micheli, F.
        Ocana, L. Conversi.  Measurers M. Micheli, R. Kresken, F. Ocana, M.
        Busch.  1.0-m f/4.4 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
    230616 F52 0.17- 0.11-    230717 J04 0.27- 0.16-    MPO157508   -0.36 days
    
    Orbital elements:
    2009 CZ2                                                 Earth MOID = 0.0870 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 284.61042              (2000.0)            P               Q                  
    n   0.26506094     Peri.   90.50214     +0.30742567     -0.94686408             
    a   2.4001528      Node   340.75773     +0.71833283     +0.29608441             
    e   0.6977745      Incl.   16.67038     +0.62408926     +0.12562813             
    P   3.72           H   18.96          G   0.15           U   0                  
    Residuals in seconds of arc
    090204 G96  0.0   0.0     090302 H26  0.9-  0.6+    090321 G96  0.3-  0.1-
    090204 G96  0.4-  0.2+    090309 673  0.4+  0.0     090321 G96  0.2-  0.2+
    090204 G96  0.0   0.1+    090309 673  0.2-  0.7+    090321 G96  0.4-  0.2+
    090204 G96  0.1+  0.2+    090309 673  0.0   0.4-    090321 G96  0.1+  0.3+
    090205 H55  0.1-  0.4+    090309 673 (2.2+  2.0-)   090322 H55  0.0   0.1-
    090205 H55  0.0   0.4-    090312 160  0.1+  0.0     090322 H55  0.2+  0.2-
    090205 G96  0.4-  0.0     090312 160  0.9-  0.7+    090322 H55  0.0   0.2-
    090205 G96  0.1-  0.2+    090312 160  0.4-  1.1+    090322 704  0.5+  0.2+
    090205 G96  1.0-  0.2-    090312 160  0.8+  1.2-    090322 704  0.4-  0.0
    090205 G96  0.5-  0.0     090313 H55 (1.3+  0.5-)   090322 704 (1.0+  2.0+)
    090205 G96  0.2-  0.2+    090313 H55  0.3+  0.2-    090322 704  0.0   0.2-
    090205 G96  0.2-  0.2+    090313 H55  0.2+  0.0     090329 704  0.7+  0.4-
    090205 G96  0.2-  0.1-    090315 703  0.3-  0.8-    090329 704  0.0   1.3+
    090205 G96  0.1-  0.2-    090315 703  0.1-  0.9-    090329 704  0.5+  1.4+
    090205 G96  0.1-  0.1-    090315 703  1.4-  0.2-    090329 704  0.6-  0.0
    090205 G96  0.2-  0.3+    090315 703  0.0   0.5-    090329 704  0.2-  0.8-
    090205 G96  0.3-  0.0     090316 560  0.3+  0.5+    090404 H55  0.1-  0.8+
    090207 J95  0.4+  0.9-    090316 560  0.2+  0.4+    090404 H55  0.7+  0.1+
    090207 J95  0.3-  0.1-    090316 560  0.1-  0.4+    090417 H55  0.2+  0.4+
    090213 H55  0.2+  0.3+    090317 H55  0.1-  0.2-    090417 H55  0.3+  0.1+
    090213 H55  0.1+  0.1-    090317 H55  0.2+  0.0     090417 H55  0.1-  0.4-
    090214 H55  0.3-  0.1-    090317 H55  0.2+  0.0     230616 F52  0.4-  0.2-
    090214 H55  0.1-  0.2-    090317 704  0.2-  0.4-    230616 F52  0.0   0.1+
    090214 H55  0.0   0.1-    090317 448  0.1+  0.2-    230616 F52  0.2-  0.1-
    090214 H55  0.1+  0.0     090317 448  0.1-  0.2-    230622 F51  0.2+  0.0
    090216 204  0.1-  0.1-    090317 704  0.4+  0.4+    230622 F51  0.1+  0.1+
    090216 204  0.0   0.1-    090317 448  0.3+  0.3-    230622 F51  0.1-  0.1+
    090216 204  0.0   0.0     090317 704  0.4-  0.1+    230622 F51  0.1+  0.2+
    090216 204  0.0   0.5-    090317 704  0.4+  0.1-    230630 F51  0.0   0.0
    090216 204  0.2-  0.0     090318 704  0.1-  0.2+    230630 F51  0.0   0.0
    090220 H55  0.1-  0.2+    090318 704  0.0   0.2+    230630 F51  0.0   0.1+
    090220 H55  0.1-  0.2+    090318 704  0.0   0.3+    230630 F51  0.3+  0.1+
    090220 H55  0.1-  0.4+    090318 704  0.1-  0.5+    230716 F51  0.0   0.0
    090223 H55  0.0   0.1+    090318 704  0.1+  0.1+    230716 F51  0.0   0.0
    090223 H55  0.0   0.0     090318 130  0.9-  0.6+    230716 F51  0.0   0.3+
    090223 H55  0.0   0.0     090318 130  0.1+  0.0     230716 F51  0.1+  0.0
    090226 H55  0.1+  0.3-    090318 130  0.1+  0.3-    230717 J04  0.2+  0.1+
    090226 H55  0.2+  0.2-    090318 130  0.1-  0.1+    230717 J04  0.1+  0.1+
    090226 H55  0.2+  0.3-    090320 H55  0.0   0.3-    230717 J04  0.3-  0.1-
    090302 H26  1.2-  0.1+    090320 H55  0.2+  0.1-
    090302 H26  0.5-  0.6+    090320 H55  0.0   0.2-
    
    Ephemeris:
    2009 CZ2                 a,e,i = 2.40, 0.70, 17                  q = 0.7254
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 06 18    22 10 39.6 -27 49 57   1.5723  2.2624   120.3    22.8    22.8
    ...
    2023 07 03    22 12 42.6 -28 36 19   1.3058  2.1365   133.5    20.2    22.2
    ...
    2023 07 11    22 10 17.7 -29 15 15   1.1758  2.0669   140.9    18.1    21.8
    ...
    2023 07 17    22 06 26.0 -29 50 19   1.0850  2.0135   146.7    16.1    21.5
    2023 07 18    22 05 35.8 -29 56 34   1.0705  2.0045   147.7    15.7    21.5
    2023 07 19    22 04 42.2 -30 02 54   1.0562  1.9954   148.6    15.4    21.4
    ...
    2023 07 25    21 58 04.1 -30 42 14   0.9744  1.9407   154.4    13.1    21.1
    ...
    2023 08 02    21 45 34.8 -31 34 09   0.8771  1.8660   160.9    10.2    20.7
    ...
    2023 08 17    21 10 39.6 -32 35 09   0.7352  1.7211   159.7    11.8    20.2
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-O31
    


    Read MPEC 2023-O30 Read MPEC 2023-O32


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)