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
2022-10-18 09:46:44 C 01 54 04.489 -02 38 09.06 U F51
2022-10-18 14:54:02 C 01 53 44.45 -02 40 01.5 V D29
2022-10-18 15:19:30 C 01 53 42.73 -02 40 09.9 V D29
2022-10-18 15:44:57 C 01 53 41.02 -02 40 19.6 V D29
2022-10-24 09:34:49 C 01 44 40.183 -03 26 45.77 U F52
2022-10-24 09:50:34 C 01 44 39.143 -03 26 50.81 U F52
2022-10-24 10:06:17 C 01 44 38.091 -03 26 55.62 U F52
2022-10-29 06:04:26 C 01 37 13.055 -04 00 33.66 V G96
2022-10-29 06:11:55 C 01 37 12.576 -04 00 35.57 V G96
2022-10-29 06:19:23 C 01 37 12.086 -04 00 37.44 V G96
2022-11-16 05:57:11 C 01 13 51.100 -05 11 27.59 U F52
2022-11-16 06:37:44 C 01 13 49.284 -05 11 30.25 U F52
2022-11-16 06:58:02 C 01 13 48.375 -05 11 31.37 U F52
2022-11-24 08:22:08 C 01 06 33.993 -05 14 37.00 U F51
2022-11-24 09:03:32 C 01 06 32.633 -05 14 35.88 U F51
2022-11-24 09:23:04 C 01 06 31.990 -05 14 35.44 U F51
2024-10-03 10:13:27 C 03 24 36.684 +06 21 03.28 X F52
2024-10-03 10:30:50 C 03 24 36.050 +06 20 57.96 X F52
2024-10-03 11:05:32 C 03 24 34.798 +06 20 47.56 X F52
2024-10-05 08:20:17 C 03 22 55.744 +06 06 57.28 V G96
2024-10-05 08:27:45 C 03 22 55.463 +06 06 55.04 V G96
2024-10-05 08:35:13 C 03 22 55.168 +06 06 52.52 V G96
2024-10-05 08:42:42 C 03 22 54.872 +06 06 50.40 V G96
2024-10-07 13:20:30 C 03 20 49.302 +05 50 21.28 X F51
2024-10-07 13:39:30 C 03 20 48.473 +05 50 15.22 X F51
2024-10-07 13:58:36 C 03 20 47.657 +05 50 09.22 X F51
2024-10-07 14:17:01 C 03 20 46.866 +05 50 03.30 X F51
2024-10-24 08:30:46 C 02 59 22.150 +03 35 12.55 V G96
2024-10-24 08:38:08 C 02 59 21.653 +03 35 10.03 V G96
2024-10-24 08:45:31 C 02 59 21.185 +03 35 07.58 V G96
2024-10-24 08:52:54 C 02 59 20.710 +03 35 04.92 V G96
2024-10-30 09:18:57 C 02 49 51.896 +02 47 20.08 X F51
2024-10-30 09:55:17 C 02 49 49.370 +02 47 08.34 X F51
2024-10-30 10:13:28 C 02 49 48.113 +02 47 02.52 X F51
2024-10-31 07:25:47 C 02 48 21.740 +02 40 16.00 V G96
2024-10-31 07:33:15 C 02 48 21.204 +02 40 13.40 V G96
2024-10-31 07:40:42 C 02 48 20.696 +02 40 11.39 V G96
2024-10-31 07:48:08 C 02 48 20.182 +02 40 08.72 V G96
2024-11-11 08:50:02 C 02 30 05.539 +01 25 11.56 X F52
2024-11-11 09:08:18 C 02 30 04.284 +01 25 06.95 X F52
2024-11-11 09:26:34 C 02 30 03.003 +01 25 02.60 X F52
2024-11-11 09:44:55 C 02 30 01.726 +01 24 58.29 X F52
2024-11-23 08:40:02 C 02 11 45.433 +00 32 04.57 X F52
2024-11-23 08:57:39 C 02 11 44.386 +00 32 02.39 X F52
2024-11-23 09:33:00 C 02 11 42.275 +00 31 58.11 X F52
2024-11-28 06:25:25 C 02 05 18.407 +00 20 43.52 X F51
2024-11-28 06:41:49 C 02 05 17.525 +00 20 42.19 X F51
2024-11-28 06:58:09 C 02 05 16.665 +00 20 41.10 X F51
2024-11-28 07:14:30 C 02 05 15.782 +00 20 40.07 X F51
2024-12-02 06:17:51 C 02 00 38.624 +00 16 09.29 X F51
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)