2021 TT9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2063869063 ± 2.28e-05
Semi-major axis (a)1.4147411562 AU ± 5.51e-05
Inclination (i)12.11376922° ± 9.91e-04
Long. of Asc. Node (Ω)205.08153700° ± 3.08e-04
Arg. of Perihelion (ω)190.61578698° ± 7.86e-04
Mean Anomaly (M)145.96104773° ± 5.02e-02
Mean Motion (n)0.5857290912°/day ± 3.42e-05
Perihelion dist (q)1.12275711 AU ± 5.43e-05
Aphelion dist (Q)1.70672521 AU ± 7.39e-05
Orbital Period1.68273405 yr ± 9.83e-05
Physical Parameters
H (abs. magnitude)24.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.227″
Uncertainty2
Orbit TypeAmor
MOID0.127952 AU
Observations Used19
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-06
Last Observation Used2021-11-10
Observations (19)
Date Type RA Dec Mag Band Observatory
2021-10-06 10:20:35 C 23 05 46.939 +18 37 06.89 U F51
2021-10-06 10:37:10 C 23 05 48.125 +18 36 20.53 U F51
2021-10-06 10:53:43 C 23 05 49.311 +18 35 34.78 U F51
2021-10-09 09:40:18 C 23 12 12.595 +15 14 21.29 V 568
2021-10-09 09:41:43 C 23 12 12.705 +15 14 17.10 V 568
2021-10-09 09:43:07 C 23 12 12.818 +15 14 12.98 V 568
2021-10-09 09:44:32 C 23 12 12.930 +15 14 08.80 V 568
2021-10-10 06:02:15 C 23 14 10.75 +14 13 52.9 o 691
2021-10-10 06:33:01 C 23 14 13.28 +14 12 20.6 o 691
2021-10-10 07:03:46 C 23 14 15.86 +14 10 48.4 o 691
2021-10-11 01:41:14 C 23 16 09.30 +13 14 43.0 u H21
2021-10-11 02:03:15 C 23 16 11.25 +13 13 36.8 u H21
2021-10-11 02:09:01 C 23 16 11.76 +13 13 19.8 u H21
2021-10-26 04:48:10 C 23 59 19.43 -05 17 04.7 V V06
2021-10-26 04:55:49 C 23 59 20.35 -05 17 26.2 V V06
2021-10-26 05:03:28 C 23 59 21.25 -05 17 47.7 V V06
2021-10-26 05:11:07 C 23 59 22.17 -05 18 08.5 V V06
2021-11-10 05:11:25 C 00 48 33.36 -18 06 24.3 o 291
2021-11-10 05:39:45 C 00 48 36.88 -18 07 04.6 o 291