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
2024-10-06 01:32:44 C 01 12 36.19 +34 05 15.8 V C40
2024-10-06 01:35:09 C 01 12 34.93 +34 05 02.0 V C40
2024-10-06 01:37:35 C 01 12 33.67 +34 04 48.2 V C40
2024-10-06 01:40:00 C 01 12 32.41 +34 04 34.4 V C40
2024-10-06 01:42:25 C 01 12 31.15 +34 04 20.5 V C40
2024-10-06 01:44:51 C 01 12 29.89 +34 04 06.7 V C40
2024-10-06 01:47:10 C 01 12 28.68 +34 03 53.4 V C40
2024-10-06 01:49:23 C 01 12 27.54 +34 03 40.7 V C40
2024-10-06 01:51:36 C 01 12 26.38 +34 03 28.0 V C40
2024-10-06 01:53:49 C 01 12 25.23 +34 03 15.4 V C40
2024-10-06 02:27:43 V 01 12 21.52 +34 00 41.8 V 270
2024-10-06 02:27:43 v 1 283.32410 +37.23086 270
2024-10-06 02:34:09 V 01 12 18.01 +34 00 07.4 V 270
2024-10-06 02:34:09 v 1 283.32410 +37.23086 270
2024-10-06 02:40:26 V 01 12 14.70 +33 59 32.7 V 270
2024-10-06 02:40:26 v 1 283.32410 +37.23086 270
2024-10-06 02:47:02 V 01 12 11.12 +33 58 58.0 V 270
2024-10-06 02:47:02 v 1 283.32410 +37.23086 270
2024-10-06 02:48:29 V 01 12 13.22 +33 58 47.5 V 270
2024-10-06 02:48:29 v 1 262.25294 +30.53181 270
2024-10-06 02:54:54 V 01 12 09.80 +33 58 12.4 V 270
2024-10-06 02:54:54 v 1 262.25294 +30.53181 270
2024-10-06 03:01:23 V 01 12 06.36 +33 57 37.8 V 270
2024-10-06 03:01:23 v 1 262.25294 +30.53181 270
2024-10-06 03:07:48 V 01 12 02.96 +33 57 03.9 V 270
2024-10-06 03:07:48 v 1 262.25294 +30.53181 270
2024-10-06 06:36:49 C 01 10 09.016 +33 37 27.44 V 703
2024-10-06 06:40:12 C 01 10 07.086 +33 37 07.79 V 703
2024-10-06 06:43:38 C 01 10 05.135 +33 36 48.06 V 703
2024-10-06 06:47:05 C 01 10 03.133 +33 36 28.01 V 703
2024-10-06 10:46:10 C 01 07 51.674 +33 12 51.62 V T05
2024-10-06 11:35:53 C 01 07 21.818 +33 07 37.49 V T05
2024-10-06 11:40:39 C 01 07 18.958 +33 07 07.00 V T05
2024-10-06 11:56:41 C 01 07 09.293 +33 05 23.86 V T05
2024-10-06 16:36:02 C 01 04 39.40 +32 33 08.0 q 168
2024-10-06 17:18:09 C 01 04 13.87 +32 28 26.9 q 168
2024-10-06 17:55:05 C 01 03 51.33 +32 24 17.7 q 168
2024-10-06 18:26:00 C 01 03 32.15 +32 20 46.1 q 168
2024-10-06 20:21:21 C 01 02 22.34 +32 07 43.4 V C40
2024-10-06 20:23:47 C 01 02 20.77 +32 07 26.2 V C40
2024-10-06 20:26:14 C 01 02 19.19 +32 07 08.8 V C40
2024-10-06 20:28:40 C 01 02 17.63 +32 06 51.5 V C40
2024-10-06 20:31:06 C 01 02 16.05 +32 06 34.1 V C40
2024-10-06 20:33:32 C 01 02 14.48 +32 06 16.7 V C40
2024-10-06 20:35:59 C 01 02 12.89 +32 05 59.3 V C40
2024-10-06 20:38:25 C 01 02 11.31 +32 05 41.9 V C40
2024-10-06 20:40:45 C 01 02 09.81 +32 05 25.3 V C40
2024-10-06 20:42:58 C 01 02 08.38 +32 05 09.4 V C40
2024-10-06 20:45:12 C 01 02 06.93 +32 04 53.4 V C40
2024-10-06 20:47:26 C 01 02 05.49 +32 04 37.5 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)