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
2024-09-22 11:34:34 C 02 10 28.656 +42 06 42.01 V T05
2024-09-22 11:43:04 C 02 10 28.121 +42 06 40.75 V T05
2024-09-23 12:40:32 C 02 09 10.829 +42 00 55.84 V T08
2024-09-23 13:01:50 C 02 09 09.259 +42 00 49.14 V T08
2024-09-23 13:06:46 C 02 09 08.930 +42 00 47.84 V T08
2024-09-23 13:27:08 C 02 09 07.435 +42 00 41.65 V T08
2024-09-23 23:53:57 C 02 08 31.95 +41 57 23.3 V C40
2024-09-24 00:05:06 C 02 08 31.12 +41 57 19.7 V C40
2024-09-24 00:16:09 C 02 08 30.30 +41 57 16.3 V C40
2024-09-25 13:12:39 C 02 05 59.361 +41 44 09.52 X F52
2024-09-25 13:47:18 C 02 05 56.060 +41 43 52.73 X F52
2024-09-25 14:04:33 C 02 05 54.423 +41 43 44.10 X F52
2024-09-26 09:29:29 C 02 04 20.543 +41 34 19.99 V 703
2024-09-26 09:32:46 C 02 04 20.183 +41 34 18.08 V 703
2024-09-26 09:36:03 C 02 04 19.841 +41 34 16.21 V 703
2024-09-26 09:39:20 C 02 04 19.474 +41 34 15.02 V 703
2024-09-26 09:56:20 C 02 04 21.206 +41 34 11.39 V T05
2024-09-26 10:25:54 C 02 04 18.079 +41 33 58.00 V T05
2024-09-26 10:31:16 C 02 04 17.518 +41 33 55.76 V T05
2024-09-26 10:49:41 C 02 04 15.538 +41 33 46.98 V T05
2024-09-27 20:32:20 C 02 00 58.056 +41 12 08.68 V Z80
2024-09-27 20:37:23 C 02 00 57.475 +41 12 05.36 V Z80
2024-09-27 20:42:27 C 02 00 56.909 +41 12 01.80 V Z80
2024-09-28 07:49:48 C 01 59 38.814 +41 04 17.08 V 703
2024-09-28 07:53:08 C 01 59 38.386 +41 04 15.06 V 703
2024-09-28 07:56:28 C 01 59 37.914 +41 04 11.93 V 703
2024-09-28 07:59:48 C 01 59 37.410 +41 04 09.98 V 703
2024-09-28 11:55:47 C 01 59 07.985 +41 01 13.69 V T05
2024-09-28 12:35:44 C 01 59 02.186 +41 00 40.14 V T05
2024-09-28 13:04:16 C 01 58 58.027 +41 00 15.44 V T05
2024-09-28 13:08:49 C 01 58 57.384 +41 00 11.41 V T05
2024-09-28 23:41:06 C 01 57 37.97 +40 50 35.6 V C40
2024-09-28 23:50:36 C 01 57 36.55 +40 50 26.6 V C40
2024-09-29 00:00:00 C 01 57 35.15 +40 50 17.7 V C40
2024-09-29 00:12:16 C 01 57 35.640 +40 50 00.13 Z C23
2024-09-29 00:16:36 C 01 57 35.028 +40 49 55.81 Z C23
2024-09-29 00:19:03 C 01 57 34.656 +40 49 53.90 Z C23
2024-09-29 01:48:05 C 01 57 21.374 +40 48 31.86 Z C23
2024-09-29 06:49:36 C 01 56 43.768 +40 44 03.37 V G96
2024-09-29 06:56:59 C 01 56 42.608 +40 43 56.96 V G96
2024-09-29 07:04:23 C 01 56 41.431 +40 43 50.23 V G96
2024-09-29 07:11:46 C 01 56 40.265 +40 43 43.50 V G96
2024-09-29 19:23:34 C 01 54 56.68 +40 30 29.7 Y 557
2024-09-29 20:24:32 C 01 54 47.09 +40 29 30.5 Y 557
2024-09-29 21:25:31 C 01 54 37.15 +40 28 29.6 Y 557
2024-09-29 22:29:32 C 01 54 26.41 +40 27 23.1 Y 557
2024-09-29 23:24:25 C 01 54 17.03 +40 26 23.9 Y 557
2024-09-30 00:07:44 C 01 54 07.73 +40 25 40.1 V C40
2024-09-30 00:10:47 C 01 54 07.20 +40 25 36.5 V C40
2024-09-30 00:13:50 C 01 54 06.69 +40 25 32.9 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)