222073 (1999 HY1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1308114527 ± 8.87e-09
Semi-major axis (a)1.3863422068 AU ± 6.74e-10
Inclination (i)34.22524911° ± 3.64e-06
Long. of Asc. Node (Ω)216.09355016° ± 1.94e-06
Arg. of Perihelion (ω)89.86934796° ± 1.31e-05
Mean Anomaly (M)18.88279804° ± 1.09e-05
Mean Motion (n)0.6038187685°/day ± 4.41e-10
Perihelion dist (q)1.20499277 AU ± 1.23e-08
Aphelion dist (Q)1.56769164 AU ± 1.23e-08
Orbital Period1.63232138 yr ± 1.19e-09
Physical Parameters
H (abs. magnitude)18.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.277″
Uncertainty0
Orbit TypeAmor
MOID0.341576 AU
Observations Used759
Oppositions10
Arc Total1999-2025
First Observation Used1999-04-22
Last Observation Used2025-06-15
Observations (822)
Date Type RA Dec Mag Band Observatory
1999-04-20 03:53:21 C 12 47 57.24 -27 10 37.3 17.9 a 704
1999-04-20 04:16:48 C 12 47 56.09 -27 09 22.8 17.6 a 704
1999-04-20 04:40:16 C 12 47 55.03 -27 08 07.7 16.9 a 704
1999-04-20 05:03:51 C 12 47 53.92 -27 06 52.8 17.1 a 704
1999-04-22 02:58:56 C 12 46 03.60 -24 39 00.5 z 860
1999-04-22 03:01:53 C 12 46 03.39 -24 38 51.6 z 860
1999-04-22 04:21:11 C 12 45 59.88 -24 34 29.2 z 859
1999-04-22 04:30:45 C 12 45 59.52 -24 33 57.3 z 859
1999-04-22 04:34:45 C 12 45 59.32 -24 33 43.2 z 859
1999-04-22 05:34:48 C 12 45 58.06 -24 30 45.3 z 711
1999-04-22 05:39:52 C 12 45 57.86 -24 30 28.3 z 711
1999-04-22 05:45:03 C 12 45 57.62 -24 30 11.3 z 711
1999-04-22 12:54:48 C 12 45 41.34 -24 06 22.4 z 428
1999-04-22 12:59:48 C 12 45 41.10 -24 06 06.1 z 428
1999-04-23 06:00:41 C 12 45 03.66 -23 10 10.8 17.5 a 704
1999-04-23 06:00:45 C 12 45 03.73 -23 10 09.8 17.9 a 704
1999-04-23 06:14:19 C 12 45 03.12 -23 09 25.4 18.0 a 704
1999-04-23 06:14:24 C 12 45 03.12 -23 09 25.0 17.9 a 704
1999-04-23 06:28:22 C 12 45 02.43 -23 08 40.0 18.0 a 704
1999-04-23 06:28:27 C 12 45 02.51 -23 08 38.0 18.5 a 704
1999-04-23 06:42:19 C 12 45 01.82 -23 07 54.6 18.4 a 704
1999-04-23 06:42:23 C 12 45 01.89 -23 07 52.6 18.1 a 704
1999-04-23 06:56:12 C 12 45 01.32 -23 07 04.7 18.2 a 704
1999-04-23 06:56:16 C 12 45 01.28 -23 07 06.1 18.0 a 704
1999-04-23 12:12:30 C 12 44 50.84 -22 49 12.4 426
1999-04-23 12:17:54 C 12 44 50.61 -22 48 54.0 426
1999-04-23 12:24:22 C 12 44 49.96 -22 48 35.1 z 428
1999-04-23 12:29:08 C 12 44 50.15 -22 48 16.8 426
1999-04-23 12:35:13 C 12 44 49.52 -22 47 58.7 z 428
1999-04-23 21:45:31 C 12 44 30.15 -22 17 42.0 d 046
1999-04-23 21:47:51 C 12 44 30.10 -22 17 34.6 d 046
1999-04-23 21:49:25 C 12 44 30.00 -22 17 29.7 d 046
1999-04-23 21:51:06 C 12 44 29.97 -22 17 23.7 d 046
1999-04-23 21:52:50 C 12 44 29.90 -22 17 18.0 d 046
1999-04-24 04:22:16 C 12 44 15.46 -21 55 09.0 z 859
1999-04-24 04:29:26 C 12 44 15.17 -21 54 44.9 z 859
1999-04-24 04:34:52 C 12 44 14.97 -21 54 26.0 z 859
1999-04-24 22:05:31 C 12 43 40.74 -20 55 47.2 d 046
1999-04-24 22:13:23 C 12 43 40.37 -20 55 20.8 d 046
1999-04-24 22:22:02 C 12 43 40.13 -20 54 50.9 d 046
1999-04-25 05:42:00 C 12 43 24.64 -20 29 35.6 z 859
1999-04-25 05:56:00 C 12 43 24.13 -20 28 47.4 z 859
1999-04-25 06:03:25 C 12 43 23.89 -20 28 21.4 z 859
1999-04-26 11:59:47 C 12 42 30.31 -18 46 16.7 426
1999-04-26 12:05:05 C 12 42 30.11 -18 45 57.9 426
1999-04-26 12:11:19 C 12 42 29.89 -18 45 37.8 426
1999-05-09 22:03:06 C 12 37 43.15 -00 56 57.4 d 046
1999-05-09 22:04:28 C 12 37 43.17 -00 56 52.3 d 046
1999-05-09 22:05:43 C 12 37 43.11 -00 56 49.8 d 046
1999-05-09 22:08:22 C 12 37 43.10 -00 56 40.7 d 046