1999 UQ

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0156225707 ± 9.36e-08
Semi-major axis (a)1.0941060735 AU ± 7.18e-09
Inclination (i)24.81535862° ± 2.61e-05
Long. of Asc. Node (Ω)211.29585031° ± 5.86e-06
Arg. of Perihelion (ω)7.56975325° ± 4.58e-04
Mean Anomaly (M)92.35729147° ± 4.43e-04
Mean Motion (n)0.8612378991°/day ± 8.48e-09
Perihelion dist (q)1.07701332 AU ± 1.03e-07
Aphelion dist (Q)1.11119882 AU ± 1.03e-07
Orbital Period1.14442976 yr ± 1.13e-08
NGA Modelr2
A2-1.16493072e-13 ± 8.76e-15 AU/d²
Physical Parameters
H (abs. magnitude)21.87
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.492″
Uncertainty0
Orbit TypeAmor
MOID0.071724 AU
Observations Used119
Oppositions3
Arc Total1999-2023
First Observation Used1999-10-16
Last Observation Used2023-09-18
Observations (120)
Date Type RA Dec Mag Band Observatory
2015-10-21 02:38:33 C 21 46 18.43 +18 50 52.8 u H21
2015-10-21 02:42:27 C 21 46 19.06 +18 50 32.1 u H21
2015-10-31 19:55:43 C 22 29 58.49 -02 20 45.2 q 204
2015-10-31 20:24:31 C 22 30 02.97 -02 22 51.9 q 204
2015-11-02 05:31:41 C 22 35 28.548 -04 44 08.97 L F51
2015-11-02 05:51:47 C 22 35 31.573 -04 45 32.54 L F51
2015-11-02 06:11:55 C 22 35 34.652 -04 46 56.96 L F51
2023-04-13 06:08:43 C 17 54 38.57 -25 57 45.2 u 807
2023-04-13 06:11:05 C 17 54 38.75 -25 57 29.7 u 807
2023-04-13 06:13:26 C 17 54 38.84 -25 57 17.2 u 807
2023-06-03 10:02:24 C 18 12 15.89 +62 40 11.2 V 290
2023-06-03 10:17:13 C 18 12 15.12 +62 40 26.3 V 290
2023-06-03 10:31:17 C 18 12 14.40 +62 40 41.2 V 290
2023-06-09 05:33:48 C 18 06 41.00 +64 49 28.8 u H21
2023-06-09 05:57:18 C 18 06 39.67 +64 49 48.3 u H21
2023-06-10 06:05:04 C 18 05 37.05 +65 08 30.9 u H21
2023-06-10 06:18:13 C 18 05 36.13 +65 08 39.2 u H21
2023-09-18 06:08:36 C 18 51 05.741 +52 32 25.77 X F52
2023-09-18 06:45:29 C 18 51 10.138 +52 31 25.26 X F52
2023-09-18 07:03:55 C 18 51 12.337 +52 30 54.48 X F52