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
2001-10-08 19:26:06 C 22 33 34.93 +15 29 49.1 610
2001-10-08 19:28:07 C 22 33 33.26 +15 29 23.8 610
2001-10-08 19:30:07 C 22 33 31.60 +15 28 58.7 610
2001-10-08 19:34:59 C 22 33 27.57 +15 27 57.4 610
2001-10-08 19:38:00 C 22 33 25.10 +15 27 19.4 610
2001-10-08 19:38:28 C 22 33 24.26 +15 27 03.1 d 557
2001-10-08 19:41:00 C 22 33 22.62 +15 26 41.5 610
2001-10-08 19:43:59 C 22 33 20.15 +15 26 03.5 610
2001-10-08 19:47:00 C 22 33 17.67 +15 25 25.6 610
2001-10-08 19:50:00 C 22 33 15.20 +15 24 47.7 610
2001-10-08 19:52:59 C 22 33 12.72 +15 24 09.7 610
2001-10-08 19:53:28 C 22 33 11.87 +15 23 53.7 d 557
2001-10-08 19:56:00 C 22 33 10.25 +15 23 31.8 610
2001-10-08 19:59:00 C 22 33 07.77 +15 22 53.8 610
2001-10-08 20:01:59 C 22 33 05.30 +15 22 15.9 610
2001-10-08 20:05:00 C 22 33 02.81 +15 21 37.5 610
2001-10-08 20:08:00 C 22 33 00.32 +15 20 59.4 610
2001-10-08 20:08:27 C 22 32 59.50 +15 20 43.5 d 557
2001-10-08 20:10:59 C 22 32 57.83 +15 20 21.3 610
2001-10-08 20:14:00 C 22 32 55.34 +15 19 43.3 610
2001-10-08 20:17:00 C 22 32 52.85 +15 19 05.2 610
2001-10-08 20:19:59 C 22 32 50.36 +15 18 27.1 610
2001-10-08 20:23:00 C 22 32 47.87 +15 17 49.0 610
2001-10-08 20:23:57 C 22 32 46.72 +15 17 27.1 d 557
2001-10-08 20:26:00 C 22 32 45.38 +15 17 10.9 610
2001-10-08 20:28:59 C 22 32 42.90 +15 16 32.9 610
2001-10-08 20:32:00 C 22 32 40.41 +15 15 54.8 610
2001-10-08 20:35:00 C 22 32 37.92 +15 15 16.6 610
2001-10-08 20:37:59 C 22 32 35.43 +15 14 38.5 610
2001-10-08 20:38:56 C 22 32 34.30 +15 14 16.2 d 557
2001-10-08 20:41:00 C 22 32 32.94 +15 14 00.4 610
2001-10-08 20:44:00 C 22 32 30.45 +15 13 22.3 610
2001-10-08 20:46:59 C 22 32 27.96 +15 12 44.1 610
2001-10-08 20:50:00 C 22 32 25.47 +15 12 06.0 610
2001-10-08 20:53:00 C 22 32 22.97 +15 11 27.6 610
2001-10-08 20:53:57 C 22 32 21.88 +15 11 04.5 d 557
2001-10-08 20:55:59 C 22 32 20.48 +15 10 49.3 610
2001-10-08 20:59:00 C 22 32 18.00 +15 10 11.1 610
2001-10-08 21:02:00 C 22 32 15.51 +15 09 32.8 610
2001-10-08 21:04:59 C 22 32 13.02 +15 08 54.5 610
2001-10-08 21:08:00 C 22 32 10.54 +15 08 16.3 610
2001-10-08 21:09:12 C 22 32 09.27 +15 07 49.9 d 557
2001-10-08 21:11:00 C 22 32 08.05 +15 07 38.0 610
2001-10-08 21:13:59 C 22 32 05.56 +15 06 59.7 610
2001-10-08 21:17:00 C 22 32 03.08 +15 06 21.4 610
2001-10-08 21:20:00 C 22 32 00.59 +15 05 43.2 610
2001-10-08 21:46:18 C 22 31 38.60 +14 59 54.5 d 557
2001-10-09 18:42:28 C 22 14 25.92 +10 16 25.7 15.1 c 629
2001-10-09 18:43:05 C 22 14 25.40 +10 16 16.5 o 629
2001-10-09 18:43:44 C 22 14 24.87 +10 16 07.9 c 629
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)