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
1940-03-31 22:55:29 A 14 29 55.92 +32 32 41.3 022
1940-04-02 21:09:47 A 14 46 00.09 +34 15 58.7 057
1940-04-04 23:23:34 A 15 02 25.91 +35 47 30.1 062
1940-04-05 22:27:45 A 15 09 46.82 +36 23 25.1 057
1940-04-06 21:26:14 A 15 16 34.04 +36 54 26.5 012
1940-04-07 22:05:30 A 15 23 39.27 +37 24 22.4 14.2 024
1940-04-09 21:17:40 A 15 36 28.83 +38 11 10.5 057
1940-04-11 22:11:23 A 15 48 32.85 +38 46 47.4 012
1948-02-29 22:51:44 A 11 24 24.25 -10 34 49.1 062
1948-03-02 23:16:04 A 11 33 18.10 -09 06 11.1 062
1948-03-04 08:00:04 A 11 39 48 -07 58.0 13.8 690
1948-03-05 00:35:01 A 11 43 14.85 -07 21 09.5 12.8 012
1948-03-06 21:32:49 A 11 53 10.63 -05 31 48.2 062
1948-03-06 22:39:47 A 11 53 25.41 -05 28 57.5 062
1948-03-08 07:29:40 A 12 01 12.88 -03 59 49.6 13.4 690
1948-03-10 00:56:00 A 12 11 25.65 -02 03 24.2 12.8 012
1948-03-10 23:35:46 A 12 17 45.18 -00 45 32.6 012
1948-03-11 01:19:29 A 12 18 12.30 -00 39 54.2 012
1948-03-11 07:52:00 A 12 20 00.98 -00 18 15.5 14.5 690
1948-03-11 21:32:55 A 12 23 50.79 +00 28 45.8 078
1948-03-12 01:41:29 A 12 24 58.61 +00 41 20.2 12.5 012
1948-03-12 06:45:06 A 12 26 27.37 +00 58 53.6 14.5 690
1948-03-12 23:25:16 A 12 31 15.96 +01 56 49.7 012
1948-03-12 23:59:11 A 12 31 25.37 +01 58 51.9 012
1948-03-13 00:11:04 A 12 31 29.15 +01 59 34.3 012
1948-03-13 20:29:19 A 12 37 32.33 +03 12 17.4 062
1948-03-13 21:04:36 A 12 37 42.82 +03 14 26.7 062
1948-03-13 23:56:25 A 12 38 33.31 +03 25 04.2 13.5 029
1948-03-14 01:35:39 A 12 39 02.24 +03 31 06.7 13.5 029
1948-03-15 01:03:45 A 12 46 17.11 +04 58 42.8 012
1948-03-18 22:15:59 A 13 17 01.66 +11 03 05.3 13.5 029
1948-03-21 03:51:45 A 13 35 44.38 +14 35 34.5 012
1948-03-30 21:07:20 A 14 58 01.77 +27 25 05.2 062
1948-03-31 23:37:14 A 15 06 36.22 +28 28 10.2 062
1948-04-01 00:33:15 A 15 06 53.35 +28 30 19.1 062
1948-04-01 00:53:42 A 15 06 59.61 +28 31 06.5 062
1948-04-01 01:17:28 A 15 07 07.15 +28 32 00.6 062
1948-04-10 21:47:55 A 16 10 16.97 +34 23 55.6 14.0 029
1948-04-12 22:39:53 A 16 20 10.14 +35 00 31.5 14.0 029
1948-04-16 20:45:44 A 16 36 28.53 +35 47 14.8 062
1948-04-16 21:16:07 A 16 36 33.81 +35 47 29.3 062
1948-04-18 05:35:12 A 16 40 59.33 +35 55 49.1 012
1948-04-19 04:30:41 A 16 44 17.13 +36 02 56.8 012
1948-05-02 09:07:43 A 17 13 46.67 +35 45 05.3 15.0 690
1948-05-04 23:24:29 A 17 15 47.06 +35 33 21.2 012
1948-05-08 00:02:03 A 17 19 41.50 +34 56 52.5 012
1948-05-09 01:41:21 A 17 20 28.63 +34 45 23.2 012
1948-05-14 08:36:37 A 17 23 11.86 +33 38 13.5 15.0 690
1948-06-14 00:16:39 A 17 19 20.41 +22 09 27.4 012
1948-07-09 07:20:36 A 17 19 58.57 +09 29 39.7 662