1221 Amor (1932 EA1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4346323446 ± 8.90e-03
Semi-major axis (a)1.9198312726 AU ± 2.87e-03
Inclination (i)11.86883065° ± 1.06e+00
Long. of Asc. Node (Ω)171.23715667° ± 4.55e+00
Arg. of Perihelion (ω)26.75827105° ± 4.78e+00
Mean Anomaly (M)59.87045381° ± 2.84e+00
Mean Motion (n)0.3705251430°/day ± 8.32e-04
Perihelion dist (q)1.08541051 AU ± 1.72e-02
Aphelion dist (Q)2.75425204 AU ± 1.76e-02
Orbital Period2.66007935 yr ± 5.97e-03
NGA Modelr2
A2-1.98953082e-07 AU/d²
Physical Parameters
H (abs. magnitude)17.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.415″
Uncertainty0
Orbit TypeAmor
MOID0.108974 AU
Observations Used691
Oppositions58
Arc Total1932-2025
First Observation Used1932-03-12
Last Observation Used2025-02-19
Observations (738)
Date Type RA Dec Mag Band Observatory
2004-07-20 22:18:27 C 20 08 19.43 +02 15 23.8 r 170
2004-07-22 23:41:40 C 20 05 40.05 +01 40 49.9 c 113
2004-07-22 23:45:49 C 20 05 39.83 +01 40 46.8 c 113
2004-07-22 23:50:01 C 20 05 39.57 +01 40 44.2 c 113
2004-07-22 23:54:11 C 20 05 39.38 +01 40 40.9 c 113
2004-07-28 21:30:23 C 19 58 33.07 -00 01 49.3 c 113
2004-07-28 21:32:29 C 19 58 32.93 -00 01 50.9 c 113
2004-07-28 21:34:35 C 19 58 32.79 -00 01 52.6 c 113
2004-07-28 21:36:42 C 19 58 32.66 -00 01 54.3 c 113
2005-10-31 07:46:29 C 02 38 08.780 +00 54 41.42 e 645
2005-10-31 07:51:29 C 02 38 08.538 +00 54 39.59 22.22 e 645
2005-11-01 07:47:32 C 02 36 58.883 +00 46 11.28 e 645
2005-11-01 07:52:32 C 02 36 58.631 +00 46 09.58 22.26 e 645
2007-09-10 07:49:36 C 23 18 50.00 -03 16 59.8 r G96
2007-09-10 07:57:01 C 23 18 49.64 -03 17 03.2 r G96
2007-09-10 08:04:04 C 23 18 49.21 -03 17 07.7 r G96
2007-09-15 22:34:39 C 23 12 35.31 -04 21 28.5 r B43
2007-10-11 02:47:51 C 22 50 39.80 -08 17 31.9 o 691
2007-10-11 03:06:24 C 22 50 39.26 -08 17 37.2 o 691
2007-10-13 02:28:52 C 22 49 34.64 -08 30 46.9 o 691
2007-10-13 02:47:25 C 22 49 34.18 -08 30 51.5 o 691
2007-10-16 02:27:02 C 22 48 08.95 -08 49 05.7 o 691
2007-10-16 02:50:05 C 22 48 08.52 -08 49 11.4 o 691
2008-12-29 04:45:44 C 04 22 21.54 -00 24 37.9 r 703
2008-12-29 04:56:09 C 04 22 21.07 -00 24 38.2 r 703
2008-12-29 05:06:30 C 04 22 20.49 -00 24 37.2 r 703
2008-12-29 05:16:54 C 04 22 19.92 -00 24 36.2 r 703
2010-09-12 06:58:39 C 01 28 16.02 +03 01 14.9 o 691
2010-10-09 07:54:52 C 01 02 20.83 -01 22 45.5 r G96
2010-10-09 08:04:50 C 01 02 20.40 -01 22 49.6 r G96
2010-10-09 08:14:58 C 01 02 19.93 -01 22 53.7 r G96
2010-10-09 08:24:58 C 01 02 19.42 -01 22 57.9 r G96
2011-12-06 15:01:25 C 11 17 18.167 -06 39 45.55 L F51
2011-12-06 15:08:07 C 11 17 19.095 -06 39 50.43 L F51
2011-12-06 15:14:49 C 11 17 20.025 -06 39 55.30 L F51
2011-12-06 15:21:30 C 11 17 20.949 -06 40 00.12 L F51
2012-01-30 11:32:08 C 15 13 52.95 -18 01 27.6 c 704
2012-01-30 11:50:28 C 15 13 56.70 -18 01 27.9 c 704
2012-01-30 12:08:45 C 15 14 00.43 -18 01 29.0 c 704
2012-01-30 12:27:01 C 15 14 04.36 -18 01 30.4 c 704
2012-01-31 15:13:01 C 15 19 41.616 -18 02 13.79 L F51
2012-01-31 15:20:41 C 15 19 43.202 -18 02 13.95 L F51
2012-01-31 15:28:20 C 15 19 44.785 -18 02 14.12 L F51
2012-01-31 15:35:59 C 15 19 46.373 -18 02 14.25 L F51
2012-05-20 13:55:41 C 21 02 31.295 +04 36 13.42 L F51
2012-05-20 14:12:46 C 21 02 31.860 +04 36 19.76 L F51
2012-05-21 09:09:14 C 21 03 11.55 +04 43 13.7 r G96
2012-05-21 09:17:40 C 21 03 11.84 +04 43 16.8 r G96
2012-05-21 09:26:03 C 21 03 12.09 +04 43 19.9 r G96
2012-05-21 09:34:22 C 21 03 12.38 +04 43 22.9 r G96