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
2016-06-28 02:42:40 C 15 02 23.51 +14 12 01.2 u H21
2016-06-28 02:45:10 C 15 02 23.65 +14 11 55.6 u H21
2016-06-28 02:47:41 C 15 02 23.79 +14 11 50.1 u H21
2016-06-28 02:50:12 C 15 02 23.94 +14 11 44.5 u H21
2016-06-28 21:22:01 C 15 03 28.22 +13 31 34.0 q 160
2016-06-28 21:24:34 C 15 03 28.33 +13 31 28.2 q 160
2016-06-28 21:27:12 C 15 03 28.49 +13 31 22.8 q 160
2016-06-29 05:28:08 C 15 03 55.67 +13 14 29.6 q H45
2016-06-29 05:29:53 C 15 03 55.76 +13 14 25.9 q H45
2016-06-29 05:30:56 C 15 03 55.82 +13 14 23.7 q H45
2016-06-29 05:32:30 C 15 03 55.91 +13 14 20.4 q H45
2016-06-29 05:34:03 C 15 03 55.99 +13 14 17.1 q H45
2016-06-29 05:35:08 C 15 03 56.05 +13 14 14.9 q H45
2016-06-30 02:29:19 C 15 05 06.72 +12 31 24.3 u H21
2016-06-30 02:31:49 C 15 05 06.85 +12 31 19.2 u H21
2016-06-30 02:34:20 C 15 05 06.99 +12 31 14.2 u H21
2016-06-30 02:36:50 C 15 05 07.11 +12 31 09.2 u H21
2016-06-30 02:39:20 C 15 05 07.25 +12 31 04.1 u H21
2016-06-30 02:41:50 C 15 05 07.38 +12 30 59.1 u H21
2016-06-30 02:44:21 C 15 05 07.51 +12 30 54.0 u H21
2016-06-30 02:47:21 C 15 05 07.67 +12 30 48.1 u H21
2016-06-30 22:22:25 C 15 06 11.58 +11 52 13.3 q 160
2016-06-30 22:24:54 C 15 06 11.72 +11 52 08.5 q 160
2016-06-30 22:27:22 C 15 06 11.85 +11 52 03.6 q 160
2016-07-01 08:11:52 C 15 06 43.44 +11 33 29.3 L T05
2016-07-01 08:31:27 C 15 06 44.43 +11 32 52.3 L T05
2016-07-01 08:52:19 C 15 06 45.45 +11 32 12.8 L T05
2016-07-01 09:13:07 C 15 06 46.51 +11 31 33.2 L T05
2016-07-01 21:34:36 C 15 07 26.10 +11 08 21.0 q 160
2016-07-01 21:37:06 C 15 07 26.22 +11 08 16.3 q 160
2016-07-01 21:39:39 C 15 07 26.35 +11 08 11.8 q 160
2016-07-01 23:21:48 C 15 07 31.72 +11 05 01.3 o Z80
2016-07-01 23:26:03 C 15 07 31.90 +11 04 53.2 o Z80
2016-07-01 23:30:17 C 15 07 32.11 +11 04 46.2 o Z80
2016-07-01 23:34:32 C 15 07 32.36 +11 04 37.5 o Z80
2016-07-01 23:38:47 C 15 07 32.56 +11 04 30.2 o Z80
2016-07-01 23:43:02 C 15 07 32.76 +11 04 22.3 o Z80
2016-07-01 23:47:17 C 15 07 32.96 +11 04 14.4 o Z80
2016-07-01 23:51:44 C 15 07 33.28 +11 04 06.2 o Z80
2016-07-01 23:56:11 C 15 07 33.44 +11 03 57.9 o Z80
2016-07-02 00:00:25 C 15 07 33.71 +11 03 51.0 o Z80
2016-07-02 06:10:09 C 15 07 53.11 +10 52 36.8 q G96
2016-07-02 06:17:00 C 15 07 53.46 +10 52 25.5 q G96
2016-07-02 06:23:49 C 15 07 53.79 +10 52 11.9 q G96
2016-07-02 06:30:38 C 15 07 54.13 +10 51 59.5 q G96
2016-07-02 21:08:09 C 15 08 40.03 +10 25 41.7 q D03
2016-07-02 21:31:30 C 15 08 41.18 +10 25 00.4 q D03
2016-07-02 21:54:54 C 15 08 42.35 +10 24 18.8 q D03
2016-07-03 04:08:46 C 15 09 01.68 +10 13 23.0 q H45
2016-07-03 04:10:36 C 15 09 01.78 +10 13 19.6 q H45