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 https://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
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)