• Processing (Info)

  • MPEC 2014-A02 : 2014 AA

    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 2014-A01 Read MPEC 2014-A03


    M.P.E.C. 2014-A02                                Issued 2014 Jan. 2, 13:08 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 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 http://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                        2014 AA
    
    Observations:
         K14A00A* C2014 01 01.26257 05 32 35.55 +13 59 45.0          19.1 VqEA002G96
         K14A00A  C2014 01 01.26896 05 32 28.89 +13 59 36.7          18.8 VqEA002G96
         K14A00A  C2014 01 01.28176 05 32 15.27 +13 59 16.4          18.9 VqEA002G96
         K14A00A  C2014 01 01.30701 05 31 47.92 +13 58 21.1          19.0 VqEA002G96
         K14A00A  C2014 01 01.30828 05 31 46.54 +13 58 17.9          19.0 VqEA002G96
         K14A00A  C2014 01 01.30955 05 31 45.15 +13 58 14.6          19.1 VqEA002G96
         K14A00A  C2014 01 01.31081 05 31 43.79 +13 58 11.1          18.9 VqEA002G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  Measurers A. Boattini,
        E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, F. C. Shelly.  1.5-m reflector + CCD.
    
    Orbital elements:
    2014 AA                                                  Earth MOID = 0.0000 AU
    Epoch 2014 Jan. 1.0 TT = JDT 2456658.5                  MPC
    M 324.30925              (2000.0)            P               Q
    n   0.78273412     Peri.   52.35440     -0.89800711     -0.43929392
    a   1.1660751      Node   101.57475     +0.39536118     -0.83018926
    e   0.2149211      Incl.    1.43759     +0.19306155     -0.34322973
    P   1.26           H   30.9           G   0.15           U   2
    Residuals in seconds of arc
    140101 G96  0.1-  0.0     140101 G96  0.1-  0.1-    140101 G96  0.1+  0.0
    140101 G96  0.2+  0.0     140101 G96  0.0   0.0
    140101 G96  0.1-  0.0     140101 G96  0.1-  0.1+
    
    Ephemeris:
    2014 AA                  a,e,i = 1.17, 0.21, 1                   q = 0.9155
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2014 AA                  a,e,i = 1.17, 0.21, 1           Elements MPC xxxxx
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 12 30.00 05 31 01.6 +14 17 03   0.0093910.9923   162.3    17.6    21.7
    2013 12 30.50 05 31 08.0 +14 16 48   0.0079290.9909   161.9    18.0    21.3
    2013 12 31.00 05 31 18.1 +14 16 36   0.0064650.9895   161.4    18.4    20.9
    2013 12 31.50 05 31 35.0 +14 16 29   0.0049960.9881   161.1    18.9    20.3
    
    2014 01 01.00 05 32 07.5 +14 16 28   0.0035200.9867   160.7    19.2    19.6
    2014 01 01.05 05 32 12.4 +14 16 28   0.0033710.9865   160.7    19.2    19.5
    2014 01 01.10 05 32 17.7 +14 16 29   0.0032230.9864   160.7    19.3    19.4
    2014 01 01.15 05 32 23.6 +14 16 30   0.0030740.9863   160.6    19.3    19.3
    2014 01 01.20 05 32 30.1 +14 16 31   0.0029250.9861   160.6    19.3    19.2
    2014 01 01.25 05 32 37.3 +14 16 32   0.0027750.9860   160.6    19.3    19.1
    2014 01 01.30 05 32 45.4 +14 16 33   0.0026260.9858   160.6    19.4    18.9
    2014 01 01.35 05 32 54.4 +14 16 35   0.0024760.9857   160.6    19.4    18.8
    2014 01 01.40 05 33 04.6 +14 16 37   0.0023260.9855   160.6    19.4    18.7
    2014 01 01.45 05 33 16.2 +14 16 39   0.0021750.9854   160.6    19.4    18.5
    2014 01 01.50 05 33 29.6 +14 16 42   0.0020240.9853   160.6    19.4    18.4
    2014 01 01.55 05 33 45.2 +14 16 45   0.0018720.9851   160.6    19.4    18.2
    2014 01 01.60 05 34 03.5 +14 16 49   0.0017200.9850   160.6    19.4    18.0
    2014 01 01.65 05 34 25.5 +14 16 53   0.0015670.9848   160.6    19.3    17.8
    2014 01 01.70 05 34 52.2 +14 16 59   0.0014130.9847   160.7    19.3    17.6
    2014 01 01.75 05 35 25.5 +14 17 05   0.0012580.9845   160.7    19.2    17.3
    2014 01 01.80 05 36 08.3 +14 17 13   0.0011020.9844   160.9    19.1    17.0
    2014 01 01.85 05 37 05.3 +14 17 24   0.0009440.9842   161.0    19.0    16.7
    2014 01 01.90 05 38 25.6 +14 17 37   0.0007830.9841   161.2    18.7    16.3
    2014 01 01.95 05 40 28.1 +14 17 54   0.0006180.9839   161.6    18.4    15.8
    2014 01 02.00 05 44 02.0 +14 18 15   0.0004480.9838   162.3    17.7    15.0
    2014 01 02.05 05 52 16.8 +14 18 17   0.0002660.9836   164.0    16.0    13.9
    
         It is virtually certain that 2014 AA hit the Earth's atmosphere on
    2014 Jan. 2.2 +/- 0.4, as demonstrated by independent calculations by
    Bill Gray, the MPC and Steve Chesley (JPL).  According to Chesley, the
    impact locations are widely distributed, most likely falling on an arc
    extending from Central America to East Africa, with a best-fit location
    just off the coast of West Africa on Jan. 2.10.  2014 AA was unlikely to
    have survived atmospheric entry intact, as it was comparable in size to
    2008 TC3, the only other example of an impacting object observed
    prior to atmospheric entry.
    
    Gareth V. Williams           (C) Copyright 2014 MPC           M.P.E.C. 2014-A02
    

    Read MPEC 2014-A01 Read MPEC 2014-A03


    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)