2021 AZ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5081526439 ± 3.94e-07
Semi-major axis (a)0.9634468011 AU ± 5.05e-08
Inclination (i)44.52026173° ± 2.62e-05
Long. of Asc. Node (Ω)115.89072853° ± 4.11e-06
Arg. of Perihelion (ω)201.28056582° ± 4.46e-05
Mean Anomaly (M)175.98167312° ± 2.41e-04
Mean Motion (n)1.0422470331°/day ± 8.19e-08
Perihelion dist (q)0.47386876 AU ± 3.80e-07
Aphelion dist (Q)1.45302484 AU ± 3.87e-07
Orbital Period0.94567435 yr ± 7.43e-08
Physical Parameters
H (abs. magnitude)21.45
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.226″
Uncertainty0
Orbit TypeAten
MOID0.301639 AU
Observations Used70
Oppositions1
Arc Total2019-2022
First Observation Used2019-01-10
Last Observation Used2022-01-08
Observations (77)
Date Type RA Dec Mag Band Observatory
2021-01-16 10:03:59 C 08 17 30.467 +25 25 24.75 U F51
2021-01-17 07:08:04 C 08 12 51.62 +26 36 06.7 V G96
2021-01-17 07:15:23 C 08 12 49.95 +26 36 30.7 V G96
2021-01-17 07:22:42 C 08 12 48.27 +26 36 55.2 V G96
2021-01-17 07:30:01 C 08 12 46.66 +26 37 19.4 V G96
2021-01-17 09:25:40 C 08 12 21.457 +26 43 46.62 U F51
2021-01-17 09:41:55 C 08 12 17.748 +26 44 40.90 U F51
2021-01-17 09:58:13 C 08 12 14.027 +26 45 34.92 U F51
2021-01-18 06:48:38 C 08 07 36.13 +27 53 34.2 V I52
2021-01-18 06:49:45 C 08 07 35.88 +27 53 37.9 V I52
2021-01-18 06:50:51 C 08 07 35.62 +27 53 41.3 V I52
2021-01-18 06:51:57 C 08 07 35.35 +27 53 45.1 V I52
2021-02-04 01:03:55 C 06 45 11.88 +42 44 45.0 u H21
2021-02-04 01:12:45 C 06 45 10.37 +42 44 56.4 u H21
2021-02-04 01:24:25 C 06 45 08.45 +42 45 11.5 u H21
2021-02-11 05:29:12 C 06 20 53.26 +45 37 42.1 V V00
2021-02-11 05:36:04 C 06 20 52.46 +45 37 47.1 V V00
2021-02-11 05:42:55 C 06 20 51.62 +45 37 52.2 V V00
2021-02-11 05:49:44 C 06 20 50.79 +45 37 57.6 V V00
2022-01-07 10:32:35 C 10 23 18.13 +24 05 36.9 V V06
2022-01-07 10:34:47 C 10 23 17.95 +24 05 43.5 V V06
2022-01-07 10:36:58 C 10 23 17.78 +24 05 50.1 V V06
2022-01-07 10:39:09 C 10 23 17.62 +24 05 56.3 V V06
2022-01-08 11:29:42 C 10 21 25.419 +25 20 36.75 U F52
2022-01-08 11:47:07 C 10 21 23.987 +25 21 29.67 U F52
2022-01-08 12:04:32 C 10 21 22.527 +25 22 22.51 U F52
2022-01-08 12:22:02 C 10 21 21.067 +25 23 15.82 U F52