2017 HF4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5269356000
Semi-major axis (a)2.2048838000 AU
Inclination (i)19.38424000°
Long. of Asc. Node (Ω)25.18359000°
Arg. of Perihelion (ω)148.72627000°
Mean Anomaly (M)230.99928000°
Mean Motion (n)0.3010409000°/day
Perihelion dist (q)1.04305200 AU
Aphelion dist (Q)3.36671560 AU
Orbital Period3.27399910 yr
Physical Parameters
H (abs. magnitude)23.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.150″
Uncertainty6
Orbit TypeAmor
MOID0.084823 AU
Observations Used15
Oppositions1
Arc Total
First Observation Used
Last Observation Used2017-05-04
Observations (15)
Date Type RA Dec Mag Band Observatory
2017-04-25 07:46:15 C 11 44 47.708 -15 00 39.58 L F51
2017-04-25 08:01:18 C 11 44 48.385 -15 02 08.64 L F51
2017-04-25 08:31:29 C 11 44 49.760 -15 05 06.68 L F51
2017-04-26 05:42:22 C 11 46 11.461 -17 06 05.42 U T12
2017-04-27 09:37:50 C 11 47 52.534 -19 33 50.95 U T12
2017-04-27 09:38:56 C 11 47 52.588 -19 33 56.49 U T12
2017-04-27 23:59:44 C 11 48 50.10 -20 44 10.4 u 807
2017-04-28 00:06:25 C 11 48 50.42 -20 44 42.8 u 807
2017-04-28 00:13:16 C 11 48 50.75 -20 45 16.5 u 807
2017-04-29 05:50:04 C 11 50 43.120 -23 02 28.63 U T12
2017-04-29 05:51:16 C 11 50 43.177 -23 02 34.04 U T12
2017-04-29 05:52:35 C 11 50 43.241 -23 02 39.81 U T12
2017-05-04 02:15:07 C 11 58 13.22 -30 09 19.4 u 807
2017-05-04 02:28:31 C 11 58 13.94 -30 10 00.2 u 807
2017-05-04 02:41:28 C 11 58 14.60 -30 10 39.2 u 807