IAA RAS IAA Minor Planet Database

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
2020-06-17 09:46:13 C 16 40 44.48 +11 12 04.6 – V T08
2020-06-17 09:59:18 C 16 40 43.13 +11 11 44.6 – V T08
2020-06-17 10:14:02 C 16 40 41.61 +11 11 22.2 – V T08
2020-06-17 10:18:02 C 16 40 41.19 +11 11 16.0 – V T08
2020-06-17 23:12:36 C 16 39 25.51 +10 51 41.4 – V 160
2020-06-17 23:15:39 C 16 39 25.22 +10 51 37.2 – V 160
2020-06-17 23:19:05 C 16 39 24.91 +10 51 32.3 – V 160
2020-06-19 23:23:25 C 16 35 04.63 +09 41 46.9 – V 160
2020-06-19 23:26:24 C 16 35 04.37 +09 41 42.7 – V 160
2020-06-19 23:29:23 C 16 35 04.12 +09 41 38.5 – V 160
2020-06-20 09:16:24 C 16 34 15.30 +09 28 02.9 – V T08
2020-06-20 09:21:42 C 16 34 14.84 +09 27 55.7 – V T08
2020-06-20 10:11:53 C 16 34 10.53 +09 26 45.7 – V T08
2020-06-20 10:21:13 C 16 34 09.73 +09 26 32.8 – V T08
2020-06-20 21:58:52 C 16 33 13.57 +09 10 26.3 – V 130
2020-06-20 22:01:04 C 16 33 13.57 +09 10 25.5 – q Z45
2020-06-20 22:01:07 C 16 33 13.38 +09 10 23.6 – V 130
2020-06-20 22:03:06 C 16 33 13.38 +09 10 22.1 – q Z45
2020-06-20 22:05:21 C 16 33 13.21 +09 10 19.7 – q Z45
2020-06-20 22:07:25 C 16 33 13.04 +09 10 16.8 – q Z45
2020-06-20 22:09:27 C 16 33 12.87 +09 10 13.9 – q Z45
2020-06-20 22:09:40 C 16 33 12.67 +09 10 11.7 – V 130
2020-06-20 22:11:39 C 16 33 12.69 +09 10 10.9 – q Z45
2020-06-20 22:13:48 C 16 33 12.51 +09 10 07.9 – q Z45
2020-06-20 22:15:55 C 16 33 12.33 +09 10 05.0 – q Z45
2020-06-21 01:42:41 C 16 32 56.22 +09 05 23.1 – q W46
2020-06-21 02:08:36 C 16 32 53.99 +09 04 49.1 – q W46
2020-06-21 02:34:49 C 16 32 51.97 +09 04 12.3 – q W46
2020-06-21 09:15:23 C 16 32 20.445 +08 55 12.90 – U F52
2020-06-21 09:51:40 C 16 32 17.509 +08 54 23.82 – U F52
2020-06-21 10:09:45 C 16 32 16.060 +08 53 59.51 – U F52
2020-06-21 22:42:12 C 16 31 19.14 +08 37 09.4 – q 160
2020-06-21 22:45:07 C 16 31 18.92 +08 37 05.6 – q 160
2020-06-21 22:48:01 C 16 31 18.69 +08 37 01.8 – q 160
2020-06-22 09:14:16 C 16 30 32.79 +08 23 21.2 – V T05
2020-06-22 09:19:34 C 16 30 32.38 +08 23 14.3 – V T05
2020-06-22 10:10:04 C 16 30 28.56 +08 22 08.4 – V T05
2020-06-22 10:19:33 C 16 30 27.85 +08 21 55.8 – V T05
2020-06-22 22:14:04 C 16 29 37.28 +08 06 24.4 – q 160
2020-06-22 22:17:01 C 16 29 37.11 +08 06 20.9 – q 160
2020-06-22 22:19:54 C 16 29 36.89 +08 06 17.0 – q 160
2020-06-23 10:07:11 C 16 28 48.15 +07 51 16.9 – V T05
2020-06-23 10:12:47 C 16 28 47.75 +07 51 09.8 – V T05
2020-06-23 10:22:34 C 16 28 47.06 +07 50 57.4 – V T05
2020-06-23 22:17:28 C 16 27 59.78 +07 35 52.6 – q 160
2020-06-23 22:20:36 C 16 27 59.56 +07 35 48.6 – q 160
2020-06-23 22:23:44 C 16 27 59.34 +07 35 44.8 – q 160
2020-06-24 09:37:15 C 16 27 15.97 +07 21 52.5 – V T08
2020-06-24 09:43:15 C 16 27 15.58 +07 21 45.0 – V T08
2020-06-24 09:51:55 C 16 27 15.00 +07 21 34.3 – V T08