IAA RAS IAA Minor Planet Database

344074 (1997 UH9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4747667072 ± 2.00e+00
Semi-major axis (a)0.8299786869 AU ± 3.00e+00
Inclination (i)25.48900693° ± 4.00e+00
Long. of Asc. Node (Ω)42.38493612° ± 5.00e+00
Arg. of Perihelion (ω)180.92738880° ± 6.00e+00
Mean Anomaly (M)209.35684559° ± 1.90e-05
Mean Motion (n)1.3035024922°/day ± 7.07e+00
Perihelion dist (q)0.43593244 AU ± 2.29e+00
Aphelion dist (Q)1.22402494 AU ± 4.73e+00
Orbital Period0.75613686 yr ± 4.10e+00
NGA Modelr2
A22.15979565e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.347″
Uncertainty0
Orbit TypeAten
MOID0.222057 AU
Observations Used741
Oppositions9
Arc Total1997-2025
First Observation Used1997-10-29
Last Observation Used2025-12-31
Observations (889)
Date Type RA Dec Mag Band Observatory
2019-12-04 12:14:24 S 20 32 10.246 +79 08 18.10 – V C57
2019-12-04 12:14:24 s 1 -45861.388 0 +395749.63 190.0 – C57
2019-12-04 14:14:24 S 20 31 24.002 +78 58 51.74 – V C57
2019-12-04 14:14:24 s 1 -49621.733 0 +395253.93 8610.0 – C57
2019-12-04 17:14:24 S 20 30 16.447 +78 44 37.32 – V C57
2019-12-04 17:14:24 s 1 -55232.067 0 +394269.78 3670.0 – C57
2019-12-04 21:14:24 S 20 28 52.010 +78 25 21.18 – V C57
2019-12-04 21:14:24 s 1 -62649.605 0 +392508.58 1590.0 – C57
2019-12-04 21:44:24 S 20 28 36.768 +78 22 48.79 – V C57
2019-12-04 21:44:24 s 1 -63571.298 0 +392252.33 1570.0 – C57
2019-12-04 23:14:24 S 20 28 10.402 +78 16 03.68 – V C57
2019-12-04 23:14:24 s 1 -66328.565 0 +391435.45 3930.0 – C57
2019-12-04 23:44:24 S 20 27 57.622 +78 13 25.86 – V C57
2019-12-04 23:44:24 s 1 -67244.983 0 +391147.10 8700.0 – C57
2019-12-05 00:14:24 S 20 27 51.715 +78 11 17.66 – V C57
2019-12-05 00:14:24 s 1 -68160.031 0 +390850.71 2030.0 – C57
2019-12-05 01:44:24 S 20 27 24.012 +78 04 18.34 – V C57
2019-12-05 01:44:24 s 1 -70896.755 0 +389913.33 2920.0 – C57
2019-12-05 02:14:24 S 20 27 15.295 +78 01 49.08 – V C57
2019-12-05 02:14:24 s 1 -71806.121 0 +389584.78 10.0 – C57
2019-12-05 02:44:24 S 20 27 07.253 +77 59 15.25 – V C57
2019-12-05 02:44:24 s 1 -72714.014 0 +389248.19 5410.0 – C57
2019-12-05 03:14:24 S 20 26 56.606 +77 56 58.96 – V C57
2019-12-05 03:14:24 s 1 -73620.415 0 +388903.54 9080.0 – C57
2019-12-05 04:14:24 S 20 26 37.949 +77 52 18.23 – V C57
2019-12-05 04:14:24 s 1 -75428.653 0 +388190.09 970.0 – C57
2019-12-05 04:44:24 S 20 26 29.208 +77 49 54.55 – V C57
2019-12-05 04:44:24 s 1 -76330.449 0 +387821.27 9100.0 – C57
2019-12-05 05:14:24 S 20 26 20.659 +77 47 54.31 – V C57
2019-12-05 05:14:24 s 1 -77230.668 0 +387444.39 5280.0 – C57
2019-12-05 05:44:24 S 20 26 10.130 +77 45 39.38 – V C57
2019-12-05 05:44:24 s 1 -78129.288 0 +387059.43 9450.0 – C57
2019-12-06 05:44:24 S 20 20 19.406 +75 55 11.86 – V C57
2019-12-06 05:44:24 s 1 -118935.96 2 +358957.78 5830.0 – C57
2019-12-06 06:44:24 S 20 20 05.863 +75 50 35.74 – V C57
2019-12-06 06:44:24 s 1 -120516.14 9 +357369.71 3490.0 – C57
2019-12-06 08:44:24 S 20 19 44.059 +75 41 38.08 – V C57
2019-12-06 08:44:24 s 1 -123641.74 0 +354090.78 7350.0 – C57
2019-12-06 09:14:24 S 20 19 40.217 +75 39 10.94 – V C57
2019-12-06 09:14:24 s 1 -124415.71 1 +353249.55 2580.0 – C57
2019-12-06 10:14:24 S 20 19 27.922 +75 35 15.86 – V C57
2019-12-06 10:14:24 s 1 -125954.52 0 +351541.16 6660.0 – C57
2019-12-06 17:44:24 S 20 18 02.616 +75 01 10.16 – V C57
2019-12-06 17:44:24 s 1 -137081.82 9 +337613.36 5550.0 – C57
2019-12-06 18:14:24 S 20 17 56.784 +74 58 32.63 – V C57
2019-12-06 18:14:24 s 1 -137796.00 3 +336613.99 720.0 – C57
2019-12-06 18:44:24 S 20 17 51.737 +74 56 23.60 – V C57
2019-12-06 18:44:24 s 1 -138506.51 1 +335605.65 8970.0 – C57
2019-12-06 19:14:24 S 20 17 48.617 +74 54 34.38 – V C57
2019-12-06 19:14:24 s 1 -139213.31 5 +334588.31 210.0 – C57