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
2012-08-02 20:18:55 C 15 03 42.63 -00 18 03.9 u 160
2012-08-02 20:21:31 C 15 03 42.86 -00 18 06.4 u 160
2012-08-03 19:59:55 C 15 05 41.70 -00 39 08.4 u 160
2012-08-03 20:03:56 C 15 05 42.03 -00 39 12.3 u 160
2012-08-03 20:07:57 C 15 05 42.36 -00 39 15.7 u 160
2012-08-04 20:28:06 C 15 07 42.76 -01 00 21.1 u 160
2012-08-04 20:32:06 C 15 07 43.08 -01 00 25.2 u 160
2012-08-04 20:36:03 C 15 07 43.36 -01 00 27.6 u 160
2012-08-05 20:09:29 C 15 09 38.28 -01 20 20.9 u 160
2012-08-05 20:12:54 C 15 09 38.57 -01 20 24.2 u 160
2012-08-05 20:16:28 C 15 09 38.87 -01 20 27.2 u 160
2012-09-06 09:35:18 C 16 02 25.11 -08 51 24.6 r E12
2012-09-06 09:52:41 C 16 02 26.16 -08 51 31.8 r E12
2012-09-06 10:12:04 C 16 02 27.34 -08 51 39.9 r E12
2012-09-06 10:29:26 C 16 02 28.60 -08 51 47.7 r E12
2014-07-21 05:36:41 C 20 17 35.55 -13 12 56.6 u H21
2014-07-21 06:00:49 C 20 17 34.64 -13 13 00.5 u H21
2014-07-21 06:24:58 C 20 17 33.79 -13 13 03.8 u H21
2015-08-14 06:32:33 C 21 14 12.43 -14 19 32.4 R G45
2015-08-14 06:51:57 C 21 14 11.37 -14 19 38.5 R G45
2015-08-14 06:59:25 C 21 14 10.98 -14 19 40.9 R G45
2015-08-14 07:07:00 C 21 14 10.49 -14 19 42.9 R G45
2015-08-14 07:14:01 C 21 14 10.16 -14 19 44.9 R G45
2015-09-05 07:43:01 C 20 45 54.560 -16 54 12.33 L F51
2015-09-05 07:58:53 C 20 45 53.765 -16 54 16.56 L F51
2015-09-05 08:14:44 C 20 45 52.965 -16 54 20.68 L F51
2015-09-05 08:30:35 C 20 45 52.167 -16 54 24.89 L F51
2015-09-06 07:04:04 C 20 44 46.041 -17 00 19.86 L F51
2015-09-06 07:20:13 C 20 44 45.241 -17 00 24.08 L F51
2015-09-06 07:36:04 C 20 44 44.455 -17 00 28.19 L F51
2015-09-06 07:51:56 C 20 44 43.666 -17 00 32.35 L F51
2015-10-01 03:16:11 C 20 22 39.48 -19 03 07.3 q G96
2015-10-01 03:23:34 C 20 22 39.27 -19 03 08.2 q G96
2015-10-01 03:30:56 C 20 22 39.08 -19 03 09.0 q G96
2015-10-01 03:38:19 C 20 22 38.90 -19 03 10.5 q G96
2015-10-08 05:17:40 C 20 19 20.802 -19 25 34.44 L F51
2015-10-08 05:49:18 C 20 19 20.280 -19 25 37.96 L F51
2015-10-14 02:44:36 C 20 17 40.74 -19 40 10.5 q G96
2015-10-14 02:53:22 C 20 17 40.69 -19 40 11.4 q G96
2015-10-14 03:02:12 C 20 17 40.61 -19 40 12.1 q G96
2015-10-14 03:10:58 C 20 17 40.52 -19 40 12.9 q G96
2016-05-27 22:27:09 C 08 13 27.36 +73 43 27.8 q 006
2016-05-27 22:30:07 C 08 13 34.45 +73 43 35.1 q 006
2016-05-27 22:33:08 C 08 13 41.84 +73 43 42.6 q 006
2016-05-27 22:36:08 C 08 13 48.91 +73 43 50.6 q 006
2016-05-27 22:39:29 C 08 13 56.99 +73 43 59.4 q 006
2016-05-29 02:00:48 C 09 23 37.21 +74 16 26.9 q H45
2016-05-29 02:03:11 C 09 23 43.45 +74 16 24.1 q H45
2016-05-29 02:06:10 C 09 23 51.28 +74 16 22.4 q H45
2016-05-29 02:07:45 C 09 23 55.18 +74 16 21.9 q H45