136849 (1998 CS1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5782683534 ± 1.48e-08
Semi-major axis (a)1.4915071025 AU ± 9.26e-10
Inclination (i)7.79146520° ± 2.71e-06
Long. of Asc. Node (Ω)110.66795390° ± 4.37e-06
Arg. of Perihelion (ω)97.81181498° ± 5.15e-06
Mean Anomaly (M)61.05048045° ± 3.12e-06
Mean Motion (n)0.5410959551°/day ± 5.04e-10
Perihelion dist (q)0.62901575 AU ± 2.21e-08
Aphelion dist (Q)2.35399846 AU ± 2.22e-08
Orbital Period1.82153696 yr ± 1.70e-09
Physical Parameters
H (abs. magnitude)17.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.019663 AU
Observations Used705
Radar Obs Used3
Oppositions5
Arc Total1998-2025
First Observation Used1998-02-09
Last Observation Used2025-02-15
Observations (785)
Date Type RA Dec Mag Band Observatory
2006-10-20 10:00:31 C 04 53 51.02 +11 44 09.5 c 711
2006-10-20 10:18:54 C 04 53 50.34 +11 44 04.5 c 711
2006-11-01 10:42:42 C 04 44 16.066 +10 42 35.34 e 645
2006-11-01 10:47:42 C 04 44 15.834 +10 42 34.21 21.34 e 645
2006-11-15 06:39:44 C 04 24 26.67 +09 25 03.6 r 703
2006-11-15 06:51:16 C 04 24 25.74 +09 24 59.9 r 703
2006-11-15 07:02:49 C 04 24 24.91 +09 24 58.7 r 703
2006-11-15 07:14:20 C 04 24 24.04 +09 24 54.6 r 703
2006-11-18 21:36:31 C 04 17 48.74 +09 04 53.5 o 151
2006-11-18 21:39:32 C 04 17 48.57 +09 04 52.6 o 151
2006-11-18 21:42:33 C 04 17 48.38 +09 04 51.9 o 151
2006-11-18 21:45:33 C 04 17 48.13 +09 04 51.4 o 151
2006-11-18 21:48:35 C 04 17 47.90 +09 04 51.6 o 151
2006-11-18 21:51:35 C 04 17 47.65 +09 04 50.5 o 151
2006-11-18 21:54:37 C 04 17 47.39 +09 04 49.3 o 151
2006-12-01 06:39:58 C 03 52 16.50 +08 04 02.6 r G96
2006-12-01 06:45:43 C 03 52 15.96 +08 04 02.6 r G96
2006-12-01 06:51:32 C 03 52 15.42 +08 04 00.9 r G96
2006-12-01 06:57:18 C 03 52 14.88 +08 03 59.6 r G96
2006-12-06 08:20:54 C 03 41 19.54 +07 45 17.8 o 644
2006-12-06 08:51:00 C 03 41 16.81 +07 45 13.7 o 644
2006-12-06 09:21:05 C 03 41 14.06 +07 45 09.7 o 644
2006-12-09 03:02:13 C 03 35 25.45 +07 37 06.8 20.8 o H55
2006-12-09 03:07:33 C 03 35 24.85 +07 37 06.1 20.5 o H55
2006-12-09 03:12:51 C 03 35 24.56 +07 37 06.5 20.6 o H55
2006-12-09 03:18:10 C 03 35 23.76 +07 37 05.4 20.8 o H55
2006-12-09 03:23:29 C 03 35 23.39 +07 37 03.9 20.7 o H55
2006-12-14 04:36:43 C 03 25 02.95 +07 26 40.6 o 644
2006-12-14 05:07:16 C 03 25 00.36 +07 26 38.4 o 644
2006-12-14 05:37:04 C 03 24 57.84 +07 26 36.7 o 644
2007-01-08 04:56:56 C 02 49 39.36 +08 11 37.5 r 703
2007-01-08 05:07:47 C 02 49 38.96 +08 11 39.2 r 703
2007-01-08 05:18:31 C 02 49 38.60 +08 11 40.8 r 703
2007-01-08 05:29:21 C 02 49 38.20 +08 11 45.6 r 703
2007-03-11 02:59:21 C 03 27 55.40 +18 23 53.0 r G96
2007-03-11 03:08:09 C 03 27 56.01 +18 23 58.4 r G96
2007-03-11 03:16:56 C 03 27 56.66 +18 24 01.9 r G96
2007-03-11 03:25:44 C 03 27 57.24 +18 24 07.2 r G96
2007-06-25 11:02:12 C 01 57 05.72 +12 26 01.4 r 703
2007-06-25 11:04:44 C 01 57 05.36 +12 25 57.1 r 703
2007-06-25 11:07:15 C 01 57 04.93 +12 25 52.4 r 703
2007-08-16 17:26:29 C 23 22 51.02 -21 33 16.1 r D29
2007-08-16 17:40:24 C 23 22 49.16 -21 33 29.5 r D29
2007-08-16 17:54:24 C 23 22 47.19 -21 33 43.9 r D29
2007-08-16 18:08:24 C 23 22 45.22 -21 33 57.5 r D29
2007-08-17 14:54:50 C 23 19 56.60 -21 53 45.9 r E12
2007-08-17 15:02:38 C 23 19 55.48 -21 53 53.4 r E12
2007-08-17 15:10:15 C 23 19 54.44 -21 54 00.5 r E12
2007-08-17 15:17:48 C 23 19 53.36 -21 54 07.8 r E12
2007-09-08 13:27:32 C 22 22 55.05 -26 20 20.0 r E12
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-01-13 09:50:00 54746571.67 5 us 8560 -14 -14
2009-01-14 06:40:00 47122758.63 5 us 8560 -14 -14
2009-01-17 09:37:00 29259325.14 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)