363027 (1998 ST27)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5297679948 ± 2.00e+00
Semi-major axis (a)0.8198152879 AU ± 3.00e+00
Inclination (i)21.05065934° ± 4.00e+00
Long. of Asc. Node (Ω)197.51457964° ± 5.00e+00
Arg. of Perihelion (ω)322.43883834° ± 6.00e+00
Mean Anomaly (M)88.40523181° ± 9.78e-06
Mean Motion (n)1.3278170992°/day ± 7.29e+00
Perihelion dist (q)0.38550339 AU ± 2.16e+00
Aphelion dist (Q)1.25412719 AU ± 4.87e+00
Orbital Period0.74229070 yr ± 4.07e+00
NGA Modelr2
A21.74180921e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.474″
Uncertainty0
Orbit TypeAten
MOID0.009115 AU
Observations Used934
Oppositions9
Arc Total1998-2024
First Observation Used1998-09-24
Last Observation Used2024-10-14
Observations (1124)
Date Type RA Dec Mag Band Observatory
2024-10-04 11:24:44 V 01 28 38.77 +36 50 11.9 V 270
2024-10-04 11:24:44 v 1 262.25291 +30.53187 270
2024-10-04 11:41:53 C 01 28 38.714 +36 50 06.65 V T08
2024-10-04 11:48:51 C 01 28 36.002 +36 49 42.89 V T08
2024-10-04 20:14:46 C 01 25 30.61 +36 18 51.8 X N42
2024-10-04 20:16:35 C 01 25 29.86 +36 18 44.9 X N42
2024-10-04 20:18:10 C 01 25 29.21 +36 18 38.9 X N42
2024-10-04 20:22:29 C 01 25 34.291 +36 17 48.38 V G33
2024-10-04 20:24:10 C 01 25 33.628 +36 17 42.36 V G33
2024-10-04 20:25:51 C 01 25 32.955 +36 17 36.30 V G33
2024-10-04 20:27:32 C 01 25 32.287 +36 17 30.27 V G33
2024-10-04 21:20:53 C 01 25 11.474 +36 14 11.62 V Z80
2024-10-04 21:23:29 C 01 25 10.03 +36 14 07.1 V K85
2024-10-04 21:24:56 C 01 25 09.850 +36 13 56.71 V Z80
2024-10-04 21:28:56 C 01 25 08.230 +36 13 42.06 V Z80
2024-10-04 21:51:56 C 01 24 58.42 +36 12 21.8 V K85
2024-10-04 22:28:00 C 01 24 43.56 +36 10 06.6 V K85
2024-10-04 22:35:59 C 01 24 40.25 +36 09 36.2 V K85
2024-10-04 23:56:51 B 01 24 05.95 +36 04 19.0 q M07
2024-10-05 00:34:24 B 01 23 50.11 +36 01 50.1 q M07
2024-10-05 03:19:49 V 01 22 53.21 +35 50 45.3 V 270
2024-10-05 03:19:49 v 1 242.98589 +33.20802 270
2024-10-05 03:26:12 V 01 22 50.53 +35 50 20.1 V 270
2024-10-05 03:26:12 v 1 242.98589 +33.20802 270
2024-10-05 03:32:25 V 01 22 47.93 +35 49 56.3 V 270
2024-10-05 03:32:25 v 1 242.98589 +33.20802 270
2024-10-05 03:39:11 V 01 22 45.05 +35 49 30.2 V 270
2024-10-05 03:39:11 v 1 242.98589 +33.20802 270
2024-10-05 04:24:25 V 01 22 24.17 +35 46 53.5 V 270
2024-10-05 04:24:25 v 1 262.25291 +30.53187 270
2024-10-05 04:29:51 V 01 22 21.81 +35 46 32.6 V 270
2024-10-05 04:29:51 v 1 262.25291 +30.53187 270
2024-10-05 04:31:57 V 01 22 18.86 +35 46 04.3 V 270
2024-10-05 04:31:57 v 1 272.08288 +42.83011 270
2024-10-05 04:36:24 V 01 22 18.94 +35 46 06.4 V 270
2024-10-05 04:36:24 v 1 262.25291 +30.53187 270
2024-10-05 04:38:26 V 01 22 16.03 +35 45 38.0 V 270
2024-10-05 04:38:26 v 1 272.08288 +42.83011 270
2024-10-05 04:43:32 V 01 22 15.74 +35 45 37.6 V 270
2024-10-05 04:43:32 v 1 262.25291 +30.53187 270
2024-10-05 04:44:39 V 01 22 13.29 +35 45 12.6 V 270
2024-10-05 04:44:39 v 1 272.08288 +42.83011 270
2024-10-05 04:50:52 V 01 22 10.57 +35 44 47.5 V 270
2024-10-05 04:50:52 v 1 272.08288 +42.83011 270
2024-10-05 19:09:44 C 01 15 55.817 +34 38 19.54 V Z80
2024-10-05 19:11:04 C 01 15 55.212 +34 38 13.06 V Z80
2024-10-05 21:00:31 C 01 15 01.31 +34 29 21.8 V K85
2024-10-05 21:50:21 C 01 14 36.12 +34 25 10.3 V K85
2024-10-06 01:27:52 C 01 12 38.71 +34 05 43.4 V C40
2024-10-06 01:30:19 C 01 12 37.45 +34 05 29.6 V C40
Radar Observations (13)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-10-07 01:39:00 77102108.2 12 us 2380 -1 -1
2001-10-09 00:34:00 107972.7 1 Hz 2380 -1 -1
2001-10-09 00:54:00 67766228.3 8 us 2380 -1 -1
2001-10-09 02:47:00 67469526.191 1.5 us 2380 -1 -1
2004-10-03 10:24:00 139197784 2 us 2380 -1 -1
2004-10-04 09:50:00 133969457.4 2 us 2380 -1 -1
2004-10-06 11:14:00 125499084.5 2 us 2380 -1 -1
2024-10-04 11:00:00 77195497.4 10 us 8560 -14 -14
2024-10-04 11:30:00 77005452.764 1 us 8560 -14 -14
2024-10-05 06:20:00 69794337.38 2 us 8560 -14 -14
2024-10-09 04:10:00 36603483 1 us 8560 -14 -14
2024-10-11 01:40:00 25630281.69 0.5 us 8560 -14 -14
2024-10-12 01:30:00 23741602 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)