887 Alinda (A918 AA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5711699949 ± 1.90e-09
Semi-major axis (a)2.4736287789 AU ± 5.48e-10
Inclination (i)9.40006250° ± 4.27e-07
Long. of Asc. Node (Ω)110.40587156° ± 1.60e-06
Arg. of Perihelion (ω)350.53450784° ± 1.66e-06
Mean Anomaly (M)81.54059221° ± 2.04e-07
Mean Motion (n)0.2533439215°/day ± 8.42e-11
Perihelion dist (q)1.06076624 AU ± 4.72e-09
Aphelion dist (Q)3.88649132 AU ± 4.79e-09
Orbital Period3.89046746 yr ± 1.29e-09
Physical Parameters
H (abs. magnitude)13.82
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.189″
Uncertainty0
Orbit TypeAmor
MOID0.079551 AU
Observations Used5556
Gaia Obs Used114
Oppositions74
Arc Total1918-2025
First Observation Used1918-02-03
Last Observation Used2025-08-27
Observations (6319)
Date Type RA Dec Mag Band Observatory
1974-03-15 20:08:44 A 10 17 04.43 +34 27 17.2 022
1974-03-15 20:26:39 A 10 17 05.06 +34 27 07.2 022
1974-03-18 19:47:16 A 10 20 03.24 +33 45 12.9 16.0 046
1974-03-18 20:03:16 A 10 20 03.77 +33 45 04.5 046
1974-03-20 19:59:38 A 10 22 03.19 +33 16 06.8 16.0 046
1974-03-20 20:15:24 A 10 22 03.84 +33 15 56.1 046
1974-03-24 20:13:18 A 10 26 03.96 +32 16 08.5 16.4 046
1974-03-24 20:34:03 A 10 26 04.60 +32 15 58.4 046
1974-04-21 04:39:00 A 10 55 41.00 +25 00 25.9 693
1977-11-15 09:33:42 A 08 07 26.07 +01 24 15.0 A 801
1978-03-09 23:05:47 A 12 32 46.01 +22 13 12.9 022
1978-03-09 23:37:41 A 12 32 44.27 +22 13 21.7 022
1978-03-10 09:05:57 A 12 32 15.96 +22 15 50.8 A 801
1982-02-20 10:16:59 A 13 54 20.95 +07 42 03.9 688
1982-02-20 12:02:59 A 13 54 20.19 +07 42 56.5 688
1982-03-04 09:38:00 A 13 49 06.06 +10 10 56.7 688
1982-03-04 11:41:59 A 13 49 01.69 +10 11 59.6 688
1985-11-18 04:43:00 A 11 04 04.44 +05 13 26.2 13.5 493
1985-11-19 04:46:30 A 11 07 59.22 +05 02 17.8 493
1985-12-12 04:38:00 A 12 29 11.03 +01 14 33.1 493
1985-12-12 05:08:59 A 12 29 15.03 +01 14 22.3 493
1985-12-15 04:32:00 A 12 38 29.45 +00 50 41.6 493
1990-04-23 06:50:20 A 14 33 37.56 +02 13 25.0 801
1990-04-23 07:33:42 A 14 33 35.15 +02 13 31.6 801
1990-04-24 05:45:16 A 14 32 22.99 +02 16 49.4 801
1990-04-24 06:12:44 A 14 32 21.45 +02 16 53.3 801
1992-07-09 08:17:35 21 07 08.85 -20 00 50.1 711
1994-04-01 10:20:44 C 15 32 13.78 -04 02 44.2 z 689
1994-04-02 10:15:59 C 15 31 25.04 -03 56 45.3 z 689
1994-04-08 06:44:02 C 15 26 02.30 -03 22 04.8 z 801
1994-04-08 07:09:20 C 15 26 01.24 -03 21 59.0 z 801
1994-04-11 07:09:12 C 15 22 54.16 -03 04 42.7 z 801
1994-04-11 07:29:33 C 15 22 53.20 -03 04 37.7 z 801
1994-05-07 12:58:59 14 51 02.71 -01 16 57.2 16.8 z 400
1994-05-07 13:20:00 14 51 01.42 -01 16 52.0 z 400
1994-05-10 04:09:21 C 14 47 56.45 -01 12 16.5 z 801
1994-05-11 03:36:54 C 14 46 49.02 -01 10 53.8 z 801
1994-05-11 04:00:07 C 14 46 47.89 -01 10 52.5 z 801
1995-07-06 10:24:34 C 18 06 30.41 -19 57 49.6 c 608
1995-07-06 11:12:21 C 18 06 28.50 -19 57 53.3 c 608
1996-07-09 11:15:06 C 21 21 32.23 -19 32 25.6 c 608
1996-07-09 12:01:55 C 21 21 30.85 -19 32 36.2 c 608
1996-07-19 14:50:22 C 21 13 36.54 -20 30 43.6 413
1996-07-19 14:57:54 C 21 13 36.27 -20 30 45.2 413
1996-07-21 23:30:02 C 21 11 30.83 -20 45 00.5 z 046
1996-07-21 23:33:12 C 21 11 30.66 -20 45 02.0 z 046
1996-07-21 23:38:49 C 21 11 30.46 -20 45 02.5 z 046
1996-07-22 08:44:28 C 21 11 09.76 -20 47 19.7 i 711
1996-07-22 08:50:33 C 21 11 09.50 -20 47 22.1 z 684
1996-07-22 09:03:25 C 21 11 09.02 -20 47 24.7 i 711