IAA RAS IAA Minor Planet Database

2021 PB9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5770159000
Semi-major axis (a)2.4515017000 AU
Inclination (i)10.47839000°
Long. of Asc. Node (Ω)324.02920000°
Arg. of Perihelion (ω)6.69941000°
Mean Anomaly (M)38.98603000°
Mean Motion (n)0.2567768000°/day
Perihelion dist (q)1.03694620 AU
Aphelion dist (Q)3.86605720 AU
Orbital Period3.83838290 yr
Physical Parameters
H (abs. magnitude)24.40
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.800″
Uncertainty8
Orbit TypeAmor
MOID0.024947 AU
Observations Used47
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-08-15
Observations (48)
Date Type RA Dec Mag Band Observatory
2021-08-11 14:10:39 C 00 17 43.85 -22 55 57.8 – V T05
2021-08-11 14:34:55 C 00 17 55.61 -22 47 32.2 – V T05
2021-08-11 14:42:55 C 00 17 59.56 -22 44 44.4 – V T05
2021-08-11 14:47:05 C 00 18 01.55 -22 43 18.0 – V T05
2021-08-12 00:53:13 C 00 23 40.93 -19 13 28.9 – V L01
2021-08-12 00:54:39 C 00 23 41.57 -19 12 58.4 – V L01
2021-08-12 00:56:54 C 00 23 42.71 -19 12 11.8 – V L01
2021-08-12 00:59:09 C 00 23 43.79 -19 11 24.2 – V L01
2021-08-12 01:01:00 C 00 23 44.64 -19 10 45.8 – V L01
2021-08-12 01:53:25 C 00 24 23.28 -18 47 59.7 – X Y00
2021-08-12 01:55:01 C 00 24 24.09 -18 47 26.9 – X Y00
2021-08-12 01:56:36 C 00 24 24.90 -18 46 54.4 – X Y00
2021-08-12 02:26:43 C 00 24 26.81 -18 40 47.1 – V 204
2021-08-12 02:36:48 C 00 24 31.63 -18 37 14.8 – V 204
2021-08-12 02:46:57 C 00 24 36.50 -18 33 41.2 – V 204
2021-08-12 04:24:20 C 00 25 27.876 -17 58 48.48 – V J04
2021-08-12 04:24:32 C 00 25 27.976 -17 58 44.56 – V J04
2021-08-12 04:24:42 C 00 25 28.055 -17 58 40.98 – V J04
2021-08-12 12:25:12 C 00 29 42.39 -15 09 11.7 – V T05
2021-08-12 12:29:49 C 00 29 44.40 -15 07 36.0 – V T05
2021-08-12 12:39:44 C 00 29 48.86 -15 04 03.8 – V T05
2021-08-12 12:48:59 C 00 29 52.94 -15 00 51.1 – V T05
2021-08-13 00:56:32 C 00 35 55.40 -10 46 57.3 – V 033
2021-08-13 00:56:57 C 00 35 55.58 -10 46 48.6 – V 033
2021-08-13 00:57:23 C 00 35 55.76 -10 46 40.3 – V 033
2021-08-13 06:38:24 C 00 38 39.96 -08 42 58.4 – V W88
2021-08-13 06:53:21 C 00 38 46.20 -08 37 48.4 – V W88
2021-08-13 23:19:29 C 00 46 23.13 -03 07 33.2 – V 104
2021-08-13 23:22:24 C 00 46 24.33 -03 06 35.7 – V 104
2021-08-13 23:25:19 C 00 46 25.49 -03 05 37.7 – V 104
2021-08-13 23:36:17 C 00 46 30.32 -03 02 18.9 – V J95
2021-08-13 23:39:30 C 00 46 31.61 -03 01 13.9 – V J95
2021-08-13 23:47:11 C 00 46 36.08 -02 58 19.4 – X 958
2021-08-13 23:57:30 C 00 46 40.33 -02 54 54.4 – X 958
2021-08-14 00:07:50 C 00 46 44.63 -02 51 29.7 – X 958
2021-08-14 02:18:26 C 00 47 34.59 -02 08 28.7 – V K38
2021-08-14 02:33:05 C 00 47 40.28 -02 03 39.6 – V K38
2021-08-14 02:44:59 C 00 47 44.95 -01 59 44.0 – V K38
2021-08-14 12:13:19 C 00 51 54.39 +01 05 34.3 – V T08
2021-08-14 12:19:19 C 00 51 56.58 +01 07 29.0 – V T08
2021-08-14 12:27:19 C 00 51 59.46 +01 10 01.7 – V T08
2021-08-14 12:56:34 C 00 52 09.98 +01 19 17.3 – V T08
2021-08-14 23:53:12 C 00 56 43.38 +04 40 51.8 – V A17
2021-08-15 00:03:42 C 00 56 47.27 +04 44 01.8 – V A17
2021-08-15 00:14:18 C 00 56 51.16 +04 47 14.8 – V A17
2021-08-15 00:51:14 C 00 57 04.37 +04 58 21.5 – V K87
2021-08-15 00:59:06 C 00 57 07.27 +05 00 43.8 – V K87
2021-08-15 01:05:18 C 00 57 09.49 +05 02 35.6 – V K87