1998 HH1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5118886000
Semi-major axis (a)2.1606458000 AU
Inclination (i)16.04607000°
Long. of Asc. Node (Ω)203.52807000°
Arg. of Perihelion (ω)359.86972000°
Mean Anomaly (M)246.14843000°
Mean Motion (n)0.3103335200°/day
Perihelion dist (q)1.05463580 AU
Aphelion dist (Q)3.26665580 AU
Orbital Period3.17596250 yr
Physical Parameters
H (abs. magnitude)23.20
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual1.100″
Uncertainty4
Orbit TypeAmor
MOID0.051495 AU
Observations Used40
Oppositions1
Arc Total
First Observation Used
Last Observation Used1998-05-19
Observations (41)
Date Type RA Dec Mag Band Observatory
1998-04-17 05:01:26 c 10 20 45.16 +10 12 58.3 i 691
1998-04-17 05:12:28 c 10 20 50.92 +10 14 34.5 i 691
1998-04-17 05:18:56 c 10 20 54.48 +10 15 31.9 i 691
1998-04-17 07:33:14 c 10 22 06.27 +10 34 55.8 i 691
1998-04-17 07:44:21 c 10 22 12.37 +10 36 32.4 i 691
1998-04-18 03:05:57 c 10 33 30.51 +13 27 19.1 i 691
1998-04-18 03:12:05 c 10 33 33.92 +13 28 13.1 i 691
1998-04-18 03:18:02 c 10 33 37.33 +13 29 07.6 i 691
1998-04-18 05:27:22 c 10 34 50.38 +13 48 16.1 i 691
1998-04-18 05:33:19 c 10 34 53.71 +13 49 07.9 i 691
1998-04-19 04:42:07 c 10 49 11.13 +17 15 41.1 i 691
1998-04-19 04:48:06 c 10 49 14.81 +17 16 36.4 i 691
1998-04-19 04:53:59 c 10 49 18.32 +17 17 28.0 i 691
1998-04-20 04:46:49 c 11 04 54.19 +20 48 44.7 i 691
1998-04-20 04:53:18 c 11 04 58.32 +20 49 42.4 i 691
1998-04-20 04:59:23 c 11 05 02.23 +20 50 35.2 i 691
1998-04-20 21:59:48 C 11 16 36.16 +23 16 35.7 046
1998-04-20 22:01:49 C 11 16 37.83 +23 16 55.7 046
1998-04-20 22:08:02 C 11 16 41.95 +23 17 47.7 046
1998-04-20 22:09:25 C 11 16 42.91 +23 17 58.7 046
1998-04-20 22:11:23 C 11 16 44.12 +23 18 15.2 046
1998-04-22 03:09:17 c 11 37 23.45 +27 16 05.7 i 691
1998-04-22 03:15:40 c 11 37 27.93 +27 16 56.4 i 691
1998-04-22 03:22:58 c 11 37 32.99 +27 17 54.6 i 691
1998-04-22 21:09:25 C 11 50 28.96 +29 32 32.4 046
1998-04-22 21:11:09 C 11 50 30.21 +29 32 46.3 046
1998-04-22 21:13:45 C 11 50 32.18 +29 33 06.0 046
1998-04-22 21:14:31 C 11 50 32.64 +29 33 11.8 046
1998-04-22 21:16:28 C 11 50 34.08 +29 33 26.4 046
1998-04-23 21:02:43 C 12 08 14.93 +32 19 10.9 046
1998-04-23 21:03:55 C 12 08 15.84 +32 19 18.4 046
1998-04-23 21:04:58 C 12 08 16.58 +32 19 24.9 046
1998-04-23 21:06:33 C 12 08 17.77 +32 19 36.1 046
1998-04-23 21:07:30 C 12 08 18.43 +32 19 42.3 046
1998-04-23 21:08:33 C 12 08 19.22 +32 19 49.6 046
1998-04-23 21:09:37 C 12 08 19.91 +32 19 57.5 046
1998-05-04 09:52:45 C 14 48 38.19 +44 26 38.7 a 696
1998-05-04 09:54:56 C 14 48 39.11 +44 26 39.4 a 696
1998-05-04 09:56:00 C 14 48 39.53 +44 26 39.2 a 696
1998-05-19 06:41:23 C 16 20 45.07 +41 49 43.4 696
1998-05-19 06:43:57 C 16 20 45.47 +41 49 42.4 696