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
2012-06-03 13:39:27 C 21 10 00.560 +06 13 19.37 L F51
2012-06-03 13:56:22 C 21 10 00.655 +06 13 22.90 L F51
2012-06-21 08:48:58 C 21 06 17.62 +06 38 25.9 c 704
2012-06-21 09:03:30 C 21 06 17.20 +06 38 24.6 c 704
2012-06-21 09:18:01 C 21 06 16.76 +06 38 22.7 c 704
2012-06-21 09:32:32 C 21 06 16.31 +06 38 22.0 c 704
2012-06-21 09:47:13 C 21 06 15.92 +06 38 19.4 c 704
2012-06-27 02:08:07 C 21 02 00.48 +06 17 15.2 t 130
2012-06-27 02:15:00 C 21 02 00.21 +06 17 13.8 t 130
2012-07-23 21:04:57 C 20 29 35.80 +01 24 12.4 u 240
2012-07-23 21:14:14 C 20 29 35.30 +01 24 05.4 u 240
2012-07-23 21:21:27 C 20 29 34.88 +01 24 00.6 u 240
2012-08-05 08:40:47 c 20 14 17.585 -02 01 40.88 L F51
2012-08-05 08:56:35 c 20 14 16.833 -02 01 51.75 L F51
2012-08-16 09:09:30 c 20 04 23.128 -05 02 41.74 L F51
2012-08-16 09:23:39 c 20 04 22.671 -05 02 51.09 L F51
2012-11-04 05:18:41 c 20 45 18.964 -14 20 17.51 L F51
2012-11-04 05:26:37 c 20 45 19.388 -14 20 17.37 L F51
2012-11-04 05:34:36 c 20 45 19.813 -14 20 17.20 L F51
2015-07-28 13:26:23 C 00 03 05.573 +03 38 05.25 L F51
2015-07-28 13:44:50 C 00 03 05.372 +03 38 01.77 L F51
2015-07-28 14:03:28 C 00 03 05.171 +03 37 58.49 L F51
2015-07-28 14:21:46 C 00 03 04.970 +03 37 55.17 L F51
2015-08-21 12:25:29 C 23 49 26.831 +00 47 36.29 L F51
2015-08-21 12:43:38 C 23 49 26.131 +00 47 29.00 L F51
2015-08-21 13:01:50 C 23 49 25.452 +00 47 21.62 L F51
2015-09-09 09:58:26 C 23 29 55.410 -02 37 50.85 L F51
2015-09-09 10:15:55 C 23 29 54.567 -02 37 59.26 L F51
2015-09-09 10:33:28 C 23 29 53.724 -02 38 07.61 L F51
2015-09-09 10:51:02 C 23 29 52.880 -02 38 16.14 L F51
2015-09-12 09:23:23 C 23 26 35.363 -03 12 03.50 L F51
2015-09-12 09:40:20 C 23 26 34.546 -03 12 11.50 L F51
2015-09-12 09:57:15 C 23 26 33.732 -03 12 19.59 L F51
2015-09-12 10:14:11 C 23 26 32.918 -03 12 27.70 L F51
2015-09-18 08:31:29 C 23 19 59.55 -04 19 31.5 o 691
2015-09-18 08:58:35 C 23 19 58.25 -04 19 43.9 o 691
2015-09-18 09:25:39 C 23 19 57.02 -04 19 56.4 o 691
2016-10-13 14:17:23 C 05 38 59.146 +08 03 03.24 L F51
2016-10-13 14:34:51 C 05 38 59.382 +08 02 57.52 L F51
2016-10-13 14:52:18 C 05 38 59.623 +08 02 51.67 L F51
2016-10-13 15:09:50 C 05 38 59.882 +08 02 45.81 L F51
2016-10-29 10:34:49 C 05 41 01.31 +05 46 41.3 q G96
2016-10-29 10:42:53 C 05 41 01.25 +05 46 38.6 q G96
2016-10-29 10:49:03 C 05 41 01.22 +05 46 36.2 q G96
2016-10-29 10:55:13 C 05 41 01.14 +05 46 33.6 q G96
2016-11-20 07:12:58 C 05 29 13.64 +02 22 30.5 V G45
2016-11-20 07:57:10 C 05 29 11.82 +02 22 14.2 V G45
2016-11-20 08:36:49 C 05 29 10.20 +02 21 59.4 V G45
2016-11-20 09:17:03 C 05 29 08.52 +02 21 44.4 V G45
2016-11-20 09:20:19 C 05 29 08.34 +02 21 43.1 V G45