331471 (1984 QY1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8934455883 ± 2.43e-09
Semi-major axis (a)2.5021720717 AU ± 1.59e-09
Inclination (i)14.28854523° ± 7.92e-07
Long. of Asc. Node (Ω)142.23451213° ± 6.39e-07
Arg. of Perihelion (ω)337.19568641° ± 6.35e-07
Mean Anomaly (M)152.86848087° ± 8.80e-07
Mean Motion (n)0.2490213124°/day ± 2.37e-10
Perihelion dist (q)0.26661747 AU ± 6.09e-09
Aphelion dist (Q)4.73772667 AU ± 6.79e-09
Orbital Period3.95799971 yr ± 3.76e-09
Physical Parameters
H (abs. magnitude)15.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.032″
Uncertainty0
Orbit TypeApollo
MOID0.136296 AU
Observations Used2124
Gaia Obs Used139
Oppositions24
Arc Total1984-2016
First Observation Used1984-08-27
Last Observation Used2024-08-03
Observations (2531)
Date Type RA Dec Mag Band Observatory
2012-07-03 22:16:17 C 13 30 37.76 +17 46 37.2 t 204
2012-07-03 22:22:48 C 13 30 39.18 +17 46 21.1 t 204
2012-07-03 22:29:21 C 13 30 40.63 +17 46 04.9 t 204
2012-07-05 02:29:58 C 13 36 41.03 +16 38 40.2 u H21
2012-07-05 02:36:29 C 13 36 42.38 +16 38 24.9 u H21
2012-07-05 02:42:45 C 13 36 43.68 +16 38 10.3 u H21
2012-07-05 20:13:32 C 13 40 18.04 +15 57 26.5 u B38
2012-07-05 20:19:02 C 13 40 19.15 +15 57 13.6 u B38
2012-07-05 20:24:54 C 13 40 20.28 +15 56 59.7 u B38
2012-07-05 20:30:40 C 13 40 21.45 +15 56 47.1 u B38
2012-07-05 21:04:13 C 13 40 28.19 +15 55 31.8 w I99
2012-07-05 21:08:08 C 13 40 28.96 +15 55 22.6 w I99
2012-07-05 21:13:34 C 13 40 30.04 +15 55 09.7 w I99
2012-07-06 20:36:42 C 13 45 03.82 +15 02 33.3 u 160
2012-07-06 20:44:37 C 13 45 05.32 +15 02 15.9 u 160
2012-07-06 20:48:27 C 13 45 06.05 +15 02 07.8 u 160
2012-07-09 20:48:23 C 13 57 53.72 +12 31 50.6 u B38
2012-07-09 20:53:05 C 13 57 54.45 +12 31 40.9 u B38
2012-07-09 20:57:35 C 13 57 55.19 +12 31 32.8 u B38
2012-07-09 21:11:12 C 13 57 57.46 +12 31 06.2 u B38
2012-07-09 21:14:55 C 13 57 58.10 +12 30 58.2 u B38
2012-07-11 19:49:54 C 14 05 23.09 +11 02 27.1 u B38
2012-07-11 19:55:05 C 14 05 23.87 +11 02 17.7 u B38
2012-07-11 19:59:46 C 14 05 24.58 +11 02 09.0 u B38
2012-07-11 20:04:37 C 14 05 25.28 +11 01 59.7 u B38
2012-07-11 20:09:35 C 14 05 26.04 +11 01 51.1 u B38
2012-07-14 20:59:34 C 14 15 55.51 +08 55 38.5 u 160
2012-07-14 21:02:03 C 14 15 55.85 +08 55 34.7 u 160
2012-07-14 21:04:37 C 14 15 56.21 +08 55 30.1 u 160
2012-07-15 03:49:21 C 14 16 51.05 +08 44 32.6 17.9 c 704
2012-07-15 04:05:00 C 14 16 53.14 +08 44 06.9 17.9 c 704
2012-07-15 04:20:25 C 14 16 55.21 +08 43 42.2 18.0 c 704
2012-07-15 04:35:47 C 14 16 57.24 +08 43 17.1 18.0 c 704
2012-07-15 04:51:08 C 14 16 59.29 +08 42 51.5 18.2 c 704
2012-07-15 20:50:24 C 14 19 06.73 +08 17 14.7 u 160
2012-07-15 20:53:19 C 14 19 07.12 +08 17 10.1 u 160
2012-07-15 20:56:04 C 14 19 07.49 +08 17 06.0 u 160
2012-07-16 20:17:15 C 14 22 08.53 +07 40 48.3 u 160
2012-07-16 20:20:15 C 14 22 08.90 +07 40 43.8 u 160
2012-07-16 20:22:53 C 14 22 09.23 +07 40 39.8 u 160
2012-07-17 20:37:42 C 14 25 10.99 +07 04 16.4 u 160
2012-07-17 20:40:40 C 14 25 11.35 +07 04 12.1 u 160
2012-07-17 20:43:38 C 14 25 11.71 +07 04 07.8 u 160
2012-07-18 20:39:54 C 14 28 05.47 +06 29 26.3 u 160
2012-07-18 20:42:35 C 14 28 05.77 +06 29 22.4 u 160
2012-07-18 20:45:41 C 14 28 06.14 +06 29 18.1 u 160
2012-08-01 20:08:59 C 15 01 39.14 +00 04 01.6 u 160
2012-08-01 20:10:23 C 15 01 39.28 +00 04 00.2 u 160
2012-08-01 20:13:10 C 15 01 39.52 +00 03 57.5 u 160
2012-08-02 20:16:32 C 15 03 42.41 -00 18 01.9 u 160