Giacobini-Zinner (21P)

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2026-03-24 (JD 2461123.5)
Eccentricity (e)0.7111070000
Semi-major axis (a)3.4907387856 AU
Inclination (i)32.05900000°
Long. of Asc. Node (Ω)195.29460000°
Arg. of Perihelion (ω)172.93950000°
Mean Anomaly (M)0.00000000°
Mean Motion (n)—°/day
Perihelion dist (q)1.00845000 AU
Aphelion dist (Q)5.97302757 AU
Orbital Period6.52192841 yr
Physical Parameters
H (abs. magnitude)9.00
G (slope)6.00
Orbit Solution
SourceMPC
Solution Date—
RMS Residual—″
Uncertainty—
Orbit TypeP
MOID0.010867 AU
Observations Used—
Oppositions—
Arc Total—
First Observation Used—
Last Observation Used—
Observations (7431)
Date Type RA Dec Mag Band Observatory
1985-09-20 04:02:00 A 06 24 51.27 +11 16 13.1 – – 006
1985-09-20 04:34:59 A 06 24 55.46 +11 14 28.4 – – 006
1985-09-20 04:39:00 A 06 24 55.78 +11 14 14.8 – – 006
1985-09-20 23:51:42 A 06 27 11.47 +10 11 28.8 – – 056
1985-09-21 01:41:00 A 06 27 23.73 +10 05 28.7 – – 061
1985-09-21 01:43:34 A 06 27 23.94 +10 05 21.9 – – 061
1985-09-21 01:46:19 A 06 27 24.37 +10 05 15.4 – – 061
1985-09-21 01:57:00 A 06 27 25.69 +10 04 38.9 – – 061
1985-09-21 01:59:30 A 06 27 25.75 +10 04 31.3 – – 061
1985-09-21 02:02:15 A 06 27 25.98 +10 04 20.7 – – 061
1985-09-21 02:18:24 A 06 27 28.07 +10 03 32.0 – – 071
1985-09-21 02:42:44 A 06 27 30.70 +10 02 13.2 – – 555
1985-09-21 02:43:34 A 06 27 30.86 +10 02 05.2 – – 046
1985-09-21 02:44:53 A 06 27 31.17 +10 02 03.6 – – 046
1985-09-21 02:56:19 A 06 27 32.77 +10 01 29.7 – – 493
1985-09-21 02:56:19 A 06 27 32.10 +10 01 27.6 – – 555
1985-09-22 00:22:26 A 06 29 59.37 +08 52 23.6 – – 071
1985-09-22 03:22:00 A 06 30 19.21 +08 42 51.8 – – 026
1985-09-22 10:11:00 A 06 31 05.00 +08 21 05.9 – – 657
1985-09-23 02:12:08 A 06 32 50.63 +07 30 24.8 – – 071
1985-09-23 02:48:00 A 06 32 54.39 +07 28 30.7 – – 046
1985-09-23 02:50:29 A 06 32 54.60 +07 28 23.3 – – 046
1985-09-23 04:12:14 A 06 33 03.70 +07 24 08.9 – – 493
1985-09-23 04:55:07 A 06 33 08.20 +07 21 54.6 – – 493
1985-09-23 19:39:59 A 06 34 43.75 +06 36 05.4 – – 323
1985-09-23 21:22:34 A 06 34 54.43 +06 30 20.1 – – 168
1985-09-24 01:19:05 A 06 35 19.65 +06 18 13.2 – – 071
1985-09-24 02:06:25 A 06 35 24.13 +06 15 50.4 – – 087
1985-09-24 02:31:24 A 06 35 26.71 +06 14 29.1 – – 087
1985-09-24 20:11:05 A 06 37 17.99 +05 20 08.8 – – 330
1985-09-25 03:13:09 A 06 38 01.34 +04 58 33.0 – – 046
1985-09-25 03:14:35 A 06 38 01.45 +04 58 28.6 – – 046
1985-09-25 10:40:35 A 06 38 47.25 +04 35 53.9 – – 657
1985-09-25 19:18:59 A 06 39 39.78 +04 10 09.9 – – 323
1985-09-25 20:40:04 A 06 39 47.64 +04 05 47.9 – – 330
1985-09-25 20:51:33 A 06 39 48.71 +04 05 13.4 – – 330
1985-09-26 03:14:11 A 06 40 26.94 +03 46 25.3 – – 051
1985-09-26 03:26:17 A 06 40 27.92 +03 45 49.4 – – 051
1985-09-27 02:48:50 A 06 42 45.66 +02 36 03.9 – – 555
1985-09-27 03:04:50 A 06 42 47.01 +02 35 19.9 – – 555
1985-09-27 03:08:40 A 06 42 47.40 +02 35 06.0 – – 046
1985-09-27 03:11:05 A 06 42 47.63 +02 34 59.4 – – 046
1985-09-27 03:38:39 A 06 42 50.29 +02 33 37.1 – – 046
1985-09-27 03:41:04 A 06 42 50.41 +02 33 31.8 – – 046
1985-09-28 12:04:29 A 06 45 54.42 +00 59 30.6 – – 657
1985-10-02 02:48:02 A 06 53 30.46 -03 00 36.2 – – 555
1985-10-02 03:02:12 A 06 53 31.50 -03 01 14.4 – – 555
1985-10-08 11:06:06 A 07 04 51.06 -09 21 56.4 – – 657
1985-10-09 20:21:59 A 07 07 00.59 -10 38 21.9 – – 323
1985-10-10 20:15:00 A 07 08 29.01 -11 32 02.2 – – 323