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
1964-03-09 08:26:33 A 13 27 03.40 -06 28 56.3 689
1964-03-09 08:40:33 A 13 27 07.55 -06 28 19.6 689
1964-03-11 01:22:01 A 13 40 08.79 -04 38 19.9 033
1964-03-11 01:32:11 A 13 40 11.79 -04 37 51.1 033
1964-03-11 02:37:01 A 13 40 33.14 -04 34 46.3 033
1964-03-11 02:47:00 A 13 40 34.17 -04 34 31.6 033
1964-03-12 00:56:07 A 13 47 52.22 -03 30 55.0 024
1964-03-12 02:25:01 A 13 48 20.35 -03 26 35.6 033
1964-03-12 02:35:00 A 13 48 24.03 -03 26 09.1 033
1964-03-12 02:48:01 A 13 48 27.61 -03 25 28.5 033
1964-03-12 02:58:01 A 13 48 31.49 -03 25 00.9 033
1964-03-16 09:14:32 A 14 23 04.83 +01 50 31.1 774
1964-03-18 01:22:34 A 14 36 52.10 +03 59 38.5 024
1964-03-18 01:48:00 A 14 37 00.26 +04 01 01.3 033
1964-03-18 01:58:00 A 14 37 03.68 +04 01 31.1 033
1964-03-18 02:07:00 A 14 37 06.45 +04 02 01.0 033
1964-03-18 02:17:00 A 14 37 09.91 +04 02 32.4 033
1964-03-18 02:22:35 A 14 37 11.88 +04 02 50.2 024
1964-03-19 02:17:00 A 14 45 21.16 +05 19 47.8 033
1964-03-19 02:27:00 A 14 45 25.08 +05 20 18.1 033
1964-03-19 02:36:00 A 14 45 27.47 +05 20 46.8 033
1964-03-19 02:46:01 A 14 45 31.27 +05 21 16.6 033
1964-03-20 09:10:01 A 14 55 50.60 +06 58 32.1 689
1964-03-20 09:45:00 A 14 56 01.90 +07 00 24.2 689
1964-04-10 00:15:02 A 17 04 37.63 +24 52 01.7 033
1964-04-10 00:30:02 A 17 04 40.30 +24 52 19.7 033
1964-04-10 00:40:01 A 17 04 41.70 +24 52 31.6 033
1964-04-10 00:55:02 A 17 04 44.31 +24 52 49.3 033
1964-04-10 09:45:00 A 17 06 13.11 +25 02 59.5 689
1964-04-10 10:16:59 A 17 06 18.03 +25 03 35.8 689
1964-04-14 01:00:02 A 17 19 26.77 +26 28 15.3 033
1964-04-14 01:15:02 A 17 19 28.80 +26 28 30.8 033
1964-04-14 01:25:02 A 17 19 30.15 +26 28 40.7 033
1964-04-14 01:40:02 A 17 19 32.37 +26 28 54.2 033
1964-04-16 09:36:44 A 17 26 47.51 +27 13 07.8 689
1964-04-16 10:11:44 A 17 26 51.41 +27 13 33.7 689
1964-04-17 01:40:15 A 17 28 41.67 +27 24 09.8 033
1964-04-17 01:55:00 A 17 28 43.35 +27 24 19.0 033
1964-04-17 02:05:01 A 17 28 44.32 +27 24 27.1 033
1964-04-17 02:20:00 A 17 28 46.04 +27 24 39.8 033
1964-05-06 23:47:42 A 18 00 05.93 +29 37 10.0 033
1964-05-07 00:17:55 A 18 00 07.00 +29 37 08.2 033
1964-05-07 01:12:56 A 18 00 07.56 +29 37 06.5 033
1964-05-07 01:37:56 A 18 00 08.42 +29 37 05.8 033
1964-05-08 07:38:45 A 18 00 48.39 +29 35 13.3 689
1964-05-08 08:12:45 A 18 00 48.81 +29 35 11.3 689
1964-05-17 00:02:56 A 18 02 20.24 +28 51 08.9 033
1964-05-17 00:32:56 A 18 02 19.86 +28 50 57.2 033
1964-05-17 00:52:56 A 18 02 19.71 +28 50 54.9 033
1964-05-17 01:22:56 A 18 02 19.47 +28 50 46.1 033