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
1964-05-18 08:42:18 A 18 02 10.69 +28 39 42.7 689
1964-05-18 09:30:17 A 18 02 09.99 +28 39 25.4 689
1964-06-01 05:45:13 A 17 56 28.57 +25 30 33.2 689
1964-06-01 06:49:14 A 17 56 26.59 +25 29 46.5 689
1964-06-04 22:24:54 A 17 54 09.55 +24 19 41.2 033
1964-06-04 22:54:53 A 17 54 08.32 +24 19 10.0 033
1964-06-04 23:11:54 A 17 54 08.01 +24 18 59.3 033
1964-06-04 23:41:53 A 17 54 06.71 +24 18 30.2 033
1964-06-09 06:47:22 A 17 51 18.14 +22 46 16.1 689
1964-06-09 07:56:22 A 17 51 15.91 +22 45 11.0 689
1972-01-11 10:00:54 A 10 43 24.52 -13 51 26.0 695
1972-01-11 10:34:25 A 10 43 27.70 -13 51 48.6 695
1972-02-12 09:40:09 A 12 31 59.82 -19 44 56.6 695
1972-02-12 10:12:34 A 12 32 06.16 -19 44 57.4 695
1972-03-11 08:43:29 A 15 32 04.23 -08 48 43.4 808
1972-03-18 10:48:59 A 16 19 29.97 -02 56 04.0 693
1972-03-18 11:03:59 A 16 19 33.73 -02 55 32.3 693
1972-03-22 08:38:28 A 16 42 57.25 +00 18 44.7 805
1972-03-22 08:41:28 A 16 42 57.98 +00 18 51.5 805
1972-03-22 08:46:27 A 16 42 59.12 +00 19 02.0 805
1972-04-13 09:15:00 A 18 13 37.98 +14 02 14.3 693
1972-04-13 09:45:30 A 18 13 41.04 +14 02 47.3 693
1972-05-18 09:37:40 A 18 52 16.03 +21 35 13.0 695
1972-05-18 09:54:19 A 18 52 15.81 +21 35 13.9 695
1972-07-13 06:28:37 A 18 09 52.26 +06 47 17.1 695
1972-07-13 07:01:19 A 18 09 51.61 +06 46 42.3 695
1980-02-13 08:18:49 A 13 42 27.39 -19 55 11.6 A 801
1980-02-14 06:36:30 A 13 47 52.00 -19 51 20.1 809
1980-02-14 06:53:29 A 13 47 56.21 -19 51 17.7 809
1980-02-14 07:05:30 A 13 47 59.06 -19 51 16.4 809
1980-04-18 08:02:11 A 18 56 23.20 +09 03 43.3 A 801
1980-06-14 06:15:34 A 19 10 46.79 +15 06 13.9 A 801
1980-07-08 05:28:34 A 18 43 44.33 +08 02 17.5 A 801
1991-09-09 05:17:43 C 23 00 30.40 -03 57 44.0 a 691
1991-09-09 05:48:38 C 23 00 28.91 -03 57 58.9 a 691
1991-09-09 06:18:18 C 23 00 27.46 -03 58 13.5 a 691
1995-12-08 16:54:53 C 10 39 25.58 -06 05 32.3 413
1995-12-08 16:59:57 C 10 39 26.20 -06 05 35.5 413
1995-12-08 17:04:56 C 10 39 26.81 -06 05 39.0 413
1996-01-04 17:28:41 C 12 10 14.91 -13 55 04.3 z 413
1996-01-04 17:31:59 C 12 10 15.42 -13 55 06.1 z 413
1996-01-27 16:09:02 C 13 54 33.29 -18 36 45.1 413
1996-01-27 16:12:07 C 13 54 33.93 -18 36 46.2 413
1996-02-29 18:11:27 C 16 52 07.58 -15 07 33.1 413
1996-02-29 18:15:01 C 16 52 08.30 -15 07 30.6 413
1996-06-21 15:57:05 C 20 16 08.85 +09 17 33.7 413
1996-06-21 16:04:09 C 20 16 08.50 +09 17 31.5 413
1996-06-21 16:10:41 C 20 16 08.21 +09 17 29.9 413
1996-07-08 11:53:37 C 19 55 07.81 +06 08 38.6 c 608
1996-07-08 12:45:44 C 19 55 04.75 +06 08 06.3 c 608