2021 GU16

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5083839820 ± 3.21e-07
Semi-major axis (a)2.5587275200 AU ± 3.61e-08
Inclination (i)26.29312708° ± 2.33e-05
Long. of Asc. Node (Ω)8.42518471° ± 1.05e-05
Arg. of Perihelion (ω)73.06121613° ± 4.74e-05
Mean Anomaly (M)107.20817017° ± 2.35e-05
Mean Motion (n)0.2408109417°/day ± 5.09e-09
Perihelion dist (q)1.25791143 AU ± 8.23e-07
Aphelion dist (Q)3.85954361 AU ± 8.24e-07
Orbital Period4.09294643 yr ± 8.66e-08
Physical Parameters
H (abs. magnitude)18.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.158″
Uncertainty0
Orbit TypeAmor
MOID0.467532 AU
Observations Used58
Oppositions20
Arc Total1999-2025
First Observation Used1999-10-13
Last Observation Used2025-03-23
Observations (59)
Date Type RA Dec Mag Band Observatory
1999-10-13 04:37:23 C 23 36 15.92 -02 41 54.5 b 691
1999-10-13 04:43:52 C 23 36 15.35 -02 41 49.7 b 691
1999-10-13 04:50:03 C 23 36 14.75 -02 41 44.7 b 691
1999-10-19 03:06:30 C 23 23 54.32 -00 42 49.8 b 691
1999-10-19 03:36:52 C 23 23 51.73 -00 42 23.6 b 691
1999-10-19 04:07:20 C 23 23 49.15 -00 41 57.6 b 691
2017-01-29 14:15:54 C 14 19 33.607 -16 49 53.99 V F51
2017-01-29 14:34:33 C 14 19 33.880 -16 50 02.36 V F51
2017-03-05 13:40:13 C 14 15 13.565 -22 12 22.60 V F51
2017-03-05 13:57:14 C 14 15 13.055 -22 12 27.81 V F51
2017-03-05 14:14:11 C 14 15 12.515 -22 12 32.70 V F51
2017-03-05 14:31:10 C 14 15 12.010 -22 12 38.19 V F51
2017-03-23 13:46:46 C 13 57 37.323 -23 56 31.72 V F51
2017-04-02 10:35:20 C 13 44 36.534 -24 25 45.64 V F51
2017-04-02 10:49:16 C 13 44 35.735 -24 25 46.57 V F51
2021-03-18 11:54:26 C 13 36 15.635 -16 43 00.26 V F51
2021-03-18 12:08:37 C 13 36 14.831 -16 43 02.72 V F51
2021-03-18 12:22:45 C 13 36 14.009 -16 43 05.25 V F51
2021-03-18 12:36:54 C 13 36 13.188 -16 43 07.34 V F51
2021-04-09 10:11:37 C 13 04 01.283 -17 26 34.61 U F51
2021-04-09 10:43:15 C 13 03 59.260 -17 26 34.74 U F51
2021-04-09 10:59:01 C 13 03 58.279 -17 26 34.77 U F51
2021-04-10 05:04:44 C 13 02 51.67 -17 26 30.3 V 807
2021-04-10 05:10:03 C 13 02 51.33 -17 26 30.0 V 807
2021-04-10 05:15:22 C 13 02 50.97 -17 26 30.4 V 807
2021-04-12 06:09:25 C 12 59 52.96 -17 26 06.3 V 807
2021-04-12 06:15:17 C 12 59 52.60 -17 26 06.3 V 807
2021-04-12 06:21:23 C 12 59 52.21 -17 26 06.2 V 807
2021-04-17 09:58:07 C 12 52 40.532 -17 22 56.44 U F51
2021-04-17 10:14:51 C 12 52 39.560 -17 22 55.81 U F51
2021-04-17 10:31:34 C 12 52 38.579 -17 22 55.46 U F51
2021-05-12 07:43:24 C 12 27 31.347 -16 49 42.48 V F51
2021-05-12 07:59:15 C 12 27 30.916 -16 49 42.68 V F51
2025-01-07 14:19:10 C 13 35 27.404 +02 12 43.39 V F51
2025-01-07 14:34:56 C 13 35 27.914 +02 12 35.26 V F51
2025-01-07 14:50:42 C 13 35 28.424 +02 12 27.10 V F51
2025-01-07 15:06:28 C 13 35 28.929 +02 12 19.02 V F51
2025-01-24 14:39:45 C 13 44 41.368 -01 01 01.96 V F52
2025-01-24 14:57:22 C 13 44 41.528 -01 01 09.08 V F52
2025-01-24 15:32:35 C 13 44 41.847 -01 01 24.60 V F52
2025-02-05 10:39:37 C 13 45 08.248 -02 55 43.72 V V06
2025-02-05 10:59:03 C 13 45 08.064 -02 55 50.63 V V06
2025-02-05 11:05:56 C 13 45 08.010 -02 55 53.29 V V06
2025-02-05 11:12:50 C 13 45 07.938 -02 55 55.88 V V06
2025-02-22 14:49:48 C 13 35 44.595 -05 13 12.33 X F51
2025-02-22 14:50:43 C 13 35 44.563 -05 13 12.54 X F51
2025-02-22 15:04:48 C 13 35 44.004 -05 13 16.46 X F51
2025-02-22 15:05:43 C 13 35 43.962 -05 13 16.72 X F51
2025-02-22 15:19:44 C 13 35 43.419 -05 13 20.90 X F51
2025-02-22 15:20:40 C 13 35 43.378 -05 13 21.33 X F51