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
1996-07-09 10:59:06 C 19 53 50.70 +05 53 45.0 c 608
1996-07-09 11:45:47 C 19 53 47.88 +05 53 16.5 c 608
1996-07-19 21:56:52 C 19 40 26.84 +02 53 05.7 z 046
1996-07-19 22:01:43 C 19 40 26.62 +02 53 01.2 z 046
2002-10-05 08:23:40 C 00 59 42.552 -01 05 26.48 n 645
2002-10-05 08:24:52 C 00 59 42.514 -01 05 27.06 n 645
2002-10-05 08:28:27 C 00 59 42.341 -01 05 28.61 n 645
2003-12-24 09:23:24 C 11 59 07.48 -11 16 17.0 r 649
2003-12-24 09:26:48 C 11 59 08.01 -11 16 19.3 r 649
2003-12-24 09:30:13 C 11 59 08.52 -11 16 21.8 r 649
2003-12-24 09:33:38 C 11 59 09.07 -11 16 24.3 r 649
2004-01-03 11:35:13 C 12 39 12.92 -13 59 27.8 c 704
2004-01-03 11:54:01 C 12 39 16.19 -13 59 39.2 c 704
2004-01-03 12:31:41 C 12 39 22.59 -14 00 03.6 c 704
2004-01-19 14:35:55 C 13 52 30.43 -17 19 23.0 o 608
2004-01-19 14:51:11 C 13 52 33.49 -17 19 28.7 o 608
2004-01-19 15:06:23 C 13 52 36.52 -17 19 34.4 o 608
2004-02-23 11:35:05 C 16 49 44.10 -16 08 55.9 c 704
2004-02-23 11:52:59 C 16 49 47.61 -16 08 45.9 c 704
2004-02-23 12:09:54 C 16 49 50.92 -16 08 39.1 c 704
2004-02-23 12:26:46 C 16 49 54.28 -16 08 28.8 c 704
2004-04-16 10:49:25 C 19 55 47.34 -01 18 17.1 c 704
2004-05-13 09:57:36 C 20 40 10.89 +04 50 09.4 c 704
2004-05-24 01:25:19 C 20 48 36.92 +06 30 33.8 012
2004-05-24 01:29:12 C 20 48 37.01 +06 30 34.8 r 198
2004-05-24 01:29:30 C 20 48 37.11 +06 30 33.5 012
2004-05-24 01:35:56 C 20 48 37.17 +06 30 35.8 012
2004-05-24 01:37:23 C 20 48 37.18 +06 30 37.5 r 198
2004-05-24 01:41:28 C 20 48 37.28 +06 30 39.0 r 198
2004-05-24 01:42:23 C 20 48 37.31 +06 30 38.2 012
2004-05-24 01:48:57 C 20 48 37.46 +06 30 40.1 012
2004-06-05 10:25:07 C 20 51 28.56 +07 41 51.0 19.1 c 644
2004-06-05 10:40:48 C 20 51 28.46 +07 41 53.3 19.1 c 644
2004-06-05 10:56:19 C 20 51 28.36 +07 41 55.5 19.1 c 644
2004-06-10 09:15:17 C 20 50 29.63 +07 53 52.8 c 704
2004-06-10 09:29:00 C 20 50 29.45 +07 53 53.4 c 704
2004-06-10 09:42:45 C 20 50 29.21 +07 53 54.6 c 704
2004-06-10 09:56:29 C 20 50 28.96 +07 53 55.0 c 704
2004-06-10 10:10:13 C 20 50 28.75 +07 53 56.0 c 704
2004-06-21 07:42:51 C 20 44 07.55 +07 40 36.9 c 704
2004-06-21 08:10:24 C 20 44 06.37 +07 40 32.4 c 704
2004-06-21 08:24:02 C 20 44 05.96 +07 40 30.0 c 704
2004-06-21 08:37:41 C 20 44 05.47 +07 40 27.9 c 704
2004-06-27 09:02:38 C 20 38 23.10 +07 07 24.7 c 670
2004-07-13 05:25:53 C 20 18 39.00 +04 15 09.3 r G70
2004-07-13 06:25:47 C 20 18 35.51 +04 14 33.5 r G70
2004-07-13 07:25:41 C 20 18 31.95 +04 13 58.1 r G70
2004-07-17 06:45:44 C 20 13 09.69 +03 14 19.0 o H06
2004-07-17 07:20:03 C 20 13 07.63 +03 13 56.7 o H06
2004-07-20 21:59:32 C 20 08 20.51 +02 15 36.7 r 170