[Iaude] MPEC E90: 2021 CP2 [a=0.97,e=0.28,i=8.4,H=23.03]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Mar 4 09:05:05 EST 2022


M.P.E.C. 2022-E90                                 Issued 2022 March 4, 14:03 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 CP2                                    


                           Revision to MPEC 2021-C91                            

Additional Observations:
     K21C02P  C2021 04 07.25409508 01 12.541+04 42 26.73         22.20GVEE090F51
     K21C02P  C2021 04 07.26524608 01 11.725+04 42 19.83         22.51GVEE090F51
     K21C02P  C2021 04 07.27638008 01 10.893+04 42 12.18         22.22GVEE090F51
     K21C02P  C2021 04 11.29743907 57 32.346+03 59 37.49         22.16GVEE090F52
     K21C02P  C2022 03 01.53436013 15 25.863-17 42 17.93         21.27GVEE090F52
     K21C02P KC2022 03 02.41663 13 14 43.10 -18 19 22.7                oEE090291
     K21C02P KC2022 03 02.42247 13 14 42.73 -18 19 36.7          21.1 RoEE090291
     K21C02P KC2022 03 02.42829 13 14 42.37 -18 19 51.6                oEE090291
     K21C02P |C2022 03 03.27052 13 13 56.82 -18 55 38.7          21.1 GVEE090807
     K21C02P |C2022 03 03.27791 13 13 56.28 -18 55 58.4          21.1 GVEE090807
     K21C02P |C2022 03 03.28530 13 13 55.74 -18 56 17.9          21.2 GVEE090807

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
    Horn.  1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, 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, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
210407 F51  0.1+  0.1+    220303 807  5.2+  0.2+    MPO606151   +0.01 days

Orbital elements:
2021 CP2                                                 Earth MOID = 0.1030 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 192.95815              (2000.0)            P               Q                  
n   1.03016509     Peri.  339.59985     +0.71829615     +0.69322975             
a   0.9709529      Node   336.18977     -0.61634221     +0.59468048             
e   0.2795858      Incl.    8.40620     -0.32275830     +0.40717028             
P   0.96           H   23.03          G   0.15           U   2                  
Residuals in seconds of arc
210206 G96  0.1-  0.1-    210213 I52  0.3+  0.2+    210306 G96  0.2+  0.2+
210206 G96  0.1-  0.2+    210213 I52  0.0   0.0     210306 G96  0.4+  0.4+
210206 G96  0.1+  0.0     210216 691  0.3-  0.1-    210306 G96  0.0   0.1-
210206 V06  0.0   0.1-    210216 691  0.6-  0.4-    210311 I52  0.1+  0.2+
210206 V06  0.4+  0.3+    210216 691  0.2-  0.0     210311 I52  0.0   0.8+
210206 V06  0.5+  0.2-    210217 F52  0.1-  0.1+    210311 I52  0.4-  0.0
210207 807  0.1-  0.1-    210217 F52  0.2-  0.1+    210311 I52  0.0   0.1+
210207 807  0.1+  0.2-    210217 F52  0.1-  0.0     210321 H21  0.2-  0.4-
210207 807  0.0   0.1-    210217 F52  0.1+  0.2+    210321 H21  0.2+  0.6-
210207 V06  0.1+  0.2-    210221 I52  0.2-  0.1+    210321 H21  0.2-  0.4-
210207 V06  0.0   0.2+    210221 I52  0.7-  0.2+    210407 F51  0.2-  0.0
210207 V06  0.1+  0.0     210222 I52  0.7+  0.3+    210407 F51  0.0   0.3+
210208 V06  0.2-  0.2+    210222 I52  0.0   0.0     210407 F51  0.0   0.2-
210208 V06  0.1+  0.0     210222 I52  0.1+  0.4-    210411 F52  0.3+  0.0
210208 V06  0.1-  0.1+    210222 I52  0.0   0.1-    220301 F52  0.1+  0.1+
210212 F51  0.0   0.1-    210302 I52  0.4+  0.4-    220302 291  0.5-  0.8-
210212 F51  0.1+  0.0     210302 I52  0.3+  0.8-    220302 291  0.3-  0.1+
210212 F51  0.1+  0.1-    210302 I52  0.1-  0.8+    220302 291  0.1+  0.0
210212 F51  0.0   0.0     210303 I52  0.2-  0.1-    220303 807  0.0   0.2+
210213 691 (0.6-  1.0+)   210303 I52  0.1-  0.3+    220303 807  0.0   0.0
210213 691  0.3+  0.3-    210303 I52  0.2+  0.1-    220303 807  0.0   0.0
210213 I52  0.4-  0.1-    210306 G96  0.2-  0.1-

Ephemeris:
2021 CP2                 a,e,i = 0.97, 0.28, 8                   q = 0.6995
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2022 02 02    13 07 32.0 -04 40 28   0.4204  1.2263   115.4    46.5    23.4
...
2022 02 17    13 17 29.1 -10 37 14   0.3148  1.2006   126.1    41.7    22.5
...
2022 02 25    13 17 43.6 -14 48 42   0.2623  1.1821   132.2    38.3    22.0
...
2022 03 03    13 14 11.8 -18 43 56   0.2255  1.1660   136.9    35.5    21.6
2022 03 04    13 13 11.9 -19 28 11   0.2197  1.1632   137.6    35.1    21.5
2022 03 05    13 12 03.8 -20 14 07   0.2139  1.1603   138.4    34.6    21.4
...
2022 03 11    13 01 47.8 -25 29 44   0.1813  1.1418   142.1    32.3    21.0
...
2022 03 19    12 34 19.2 -34 42 02   0.1445  1.1145   143.2    32.3    20.4
...
2022 04 03    09 54 50.8 -55 16 14   0.1058  1.0552   119.1    55.8    20.3

A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-E90




More information about the Iaude mailing list