[Iaude] MPEC A33: 2012 AW [a=1.16,e=0.29,i=14.0,H=22.0]

[mpec at si.edu]

M.P.E.C. 2017-A33                                Issued 2017 Jan. 6, 18:27 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                    2012 AW
 
                           Revision to MPEC 2012-A19
 
Additional Observations:
     K12A00W  C2016 12 18.34179 06 06 48.65 +27 42 44.7          20.4 RoEA033926
     K12A00W  C2016 12 18.34921 06 06 47.16 +27 42 59.1          20.7 RoEA033926
     K12A00W  C2016 12 20.18862 06 00 53.10 +28 43 31.0          19.8 RoEA033926
     K12A00W  C2016 12 20.46633 05 59 55.21 +28 52 41.1          19.1 RoEA033926
     K12A00W  C2017 01 06.24132 04 54 48.21 +37 28 43.6          21.3 RoEA033926
     K12A00W  C2017 01 06.24793 04 54 46.50 +37 28 53.1          21.2 RoEA033926
     K12A00W  C2017 01 06.25451 04 54 44.86 +37 29 03.4          21.2 RoEA033926
 
Observer details:
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
161218 926 0.48+ 0.12+    170106 926 0.41+ 0.26+    MPO221238   -0.24 day
 
Orbital elements:
2012 AW                                                  Earth MOID = 0.1193 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 297.90794              (2000.0)            P               Q
n   0.78551368     Peri.  140.79325     -0.69951630     +0.67285398
a   1.1633227      Node    83.29777     -0.70134547     -0.58178853
e   0.2897060      Incl.   14.02664     -0.13708200     -0.45693504
P   1.25           H   22.0           G   0.15           U   4
Residuals in seconds of arc
120101 G96  0.2+  0.1+    120101 G96  0.4-  0.2+    120115 H21  0.4+  0.1-
120101 G96  0.0   0.3+    120101 G96  0.8-  0.1+    120115 H21  0.1-  0.1-
120101 G96  0.2+  0.0     120102 J95  0.4-  0.5-    120125 291  0.0   0.1+
120101 G96  0.1+  0.1+    120102 J95  0.4+  0.6-    120125 291  0.1-  0.2-
120101 G96  0.2-  0.2+    120102 J95  0.2+  0.5+    161218 926  0.6+  0.1-
120101 G96  0.3-  0.2+    120102 291  0.1+  0.1+    161218 926  0.2+  0.2-
120101 291  0.2-  0.7+    120102 291  0.1-  0.2+    161220 926  0.6-  0.2+
120101 291  0.7+  0.4-    120102 291  0.4-  0.1+    161220 926  0.1+  0.2-
120101 291  0.1+  0.0     120103 H21  0.4-  0.0     170106 926  0.1+  0.3+
120101 G96  0.3+  0.0     120103 H21  0.0   0.2-    170106 926  0.4-  0.2-
120101 G96  0.2-  0.3+    120115 H21  0.4+  0.2+    170106 926  0.1-  0.2+

Ephemeris:
2012 AW                  a,e,i = 1.16, 0.29, 14                  q = 0.8263
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 07    06 34 59.2 +22 03 48   0.4207  1.3821   157.0    16.2    21.7
...
2016 12 22    05 54 41.9 +29 43 43   0.3518  1.3338   173.5     4.8    20.8
...
2016 12 30    05 24 15.7 +34 03 32   0.3357  1.3050   160.7    14.4    21.0
...
2017 01 05    04 59 49.3 +36 56 24   0.3329  1.2820   149.8    22.7    21.2
2017 01 06    04 55 46.9 +37 22 29   0.3331  1.2781   148.0    24.1    21.3
2017 01 07    04 51 46.6 +37 47 44   0.3335  1.2741   146.2    25.4    21.3
...
2017 01 13    04 28 57.1 +40 01 44   0.3391  1.2497   136.0    33.2    21.5
...
2017 01 21    04 03 28.3 +42 19 10   0.3530  1.2155   123.6    42.4    21.8
...
2017 02 05    03 34 59.6 +45 27 30   0.3861  1.1475   104.9    56.1    22.3

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-A33