IAA RAS IAA Minor Planet Database

1864 Daedalus (1971 FA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6144457497 ± 9.02e-09
Semi-major axis (a)1.4608394399 AU ± 7.41e-10
Inclination (i)22.21687740° ± 1.11e-06
Long. of Asc. Node (Ω)6.59701837° ± 1.87e-06
Arg. of Perihelion (ω)325.66177542° ± 1.90e-06
Mean Anomaly (M)257.57085481° ± 1.82e-06
Mean Motion (n)0.5582240560°/day ± 4.25e-10
Perihelion dist (q)0.56323286 AU ± 1.32e-08
Aphelion dist (Q)2.35844602 AU ± 1.32e-08
Orbital Period1.76564638 yr ± 1.34e-09
Physical Parameters
H (abs. magnitude)14.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.269202 AU
Observations Used6128
Radar Obs Used1
Gaia Obs Used126
Oppositions20
Arc Total1971-2026
First Observation Used1971-03-24
Last Observation Used2026-04-04
Observations (7777)
Date Type RA Dec Mag Band Observatory
2019-12-16 14:28:18 C 11 40 41.12 +24 28 47.7 – V T08
2020-01-01 13:17:50 C 11 43 17.40 +25 52 30.0 – V T08
2020-01-01 13:23:57 C 11 43 17.36 +25 52 31.8 – V T08
2020-01-01 13:51:44 C 11 43 17.16 +25 52 40.2 – V T08
2020-01-01 14:10:12 C 11 43 17.04 +25 52 45.7 – V T08
2020-01-03 11:14:22 C 11 42 58.66 +26 06 26.2 – V 703
2020-01-03 11:22:52 C 11 42 58.51 +26 06 30.3 – V 703
2020-01-03 11:31:22 C 11 42 58.43 +26 06 32.8 – V 703
2020-01-03 11:39:53 C 11 42 58.33 +26 06 35.3 – V 703
2020-01-04 10:37:03 C 11 42 45.77 +26 13 51.0 – V G96
2020-01-04 10:44:25 C 11 42 45.69 +26 13 53.4 – V G96
2020-01-04 10:51:47 C 11 42 45.61 +26 13 55.8 – V G96
2020-01-04 10:59:08 C 11 42 45.52 +26 13 58.2 – V G96
2020-01-05 05:08:59 C 11 42 33.80 +26 19 52.7 18.6 q J43
2020-01-05 05:22:35 C 11 42 33.62 +26 19 57.3 18.7 q J43
2020-01-05 05:36:12 C 11 42 33.46 +26 20 01.6 18.7 q J43
2020-01-05 05:49:50 C 11 42 33.28 +26 20 06.5 18.7 q J43
2020-01-19 13:34:49 C 11 34 06.93 +28 31 50.8 – V T05
2020-01-19 13:40:39 C 11 34 06.70 +28 31 53.2 – V T05
2020-01-19 13:52:17 C 11 34 06.24 +28 31 58.1 – V T05
2020-01-19 14:13:56 C 11 34 05.38 +28 32 07.6 – V T05
2020-01-21 13:35:50 C 11 32 10.37 +28 52 34.9 – V T08
2020-01-21 13:43:24 C 11 32 10.06 +28 52 38.1 – V T08
2020-01-21 13:49:27 C 11 32 09.78 +28 52 40.4 – V T08
2020-01-21 14:03:40 C 11 32 09.15 +28 52 46.8 – V T08
2020-01-23 08:05:02 C 11 30 17.75 +29 11 09.4 – V 703
2020-01-23 08:12:33 C 11 30 17.39 +29 11 12.8 – V 703
2020-01-23 08:20:03 C 11 30 17.02 +29 11 16.2 – V 703
2020-01-23 08:27:33 C 11 30 16.67 +29 11 19.5 – V 703
2020-01-23 11:08:45 C 11 30 08.98 +29 12 30.8 – V G96
2020-01-23 11:16:09 C 11 30 08.62 +29 12 33.9 – V G96
2020-01-23 11:23:32 C 11 30 08.28 +29 12 37.4 – V G96
2020-01-23 11:30:54 C 11 30 07.91 +29 12 40.5 – V G96
2020-01-23 14:59:39 C 11 29 58.17 +29 14 13.5 – V T05
2020-01-23 15:07:52 C 11 29 57.75 +29 14 17.1 – V T05
2020-01-23 15:11:49 C 11 29 57.55 +29 14 19.0 – V T05
2020-01-23 15:41:37 C 11 29 56.14 +29 14 31.9 – V T05
2020-01-25 13:04:32 C 11 27 44.00 +29 34 37.3 – V T08
2020-01-25 13:09:21 C 11 27 43.75 +29 34 39.8 – V T08
2020-01-25 13:29:44 C 11 27 42.67 +29 34 48.5 – V T08
2020-01-25 13:38:18 C 11 27 42.23 +29 34 52.5 – V T08
2020-01-26 09:00:43 C 11 26 42.65 +29 43 27.0 – V 703
2020-01-26 09:08:13 C 11 26 42.22 +29 43 30.5 – V 703
2020-01-26 09:15:42 C 11 26 41.86 +29 43 33.4 – V 703
2020-01-26 09:23:13 C 11 26 41.47 +29 43 36.9 – V 703
2020-01-27 13:18:48 C 11 25 11.90 +29 56 02.7 – V T05
2020-01-27 13:26:57 C 11 25 11.44 +29 56 06.7 – V T05
2020-01-27 13:31:19 C 11 25 11.24 +29 56 08.3 – V T05
2020-01-27 13:48:28 C 11 25 10.23 +29 56 15.9 – V T05
2020-01-28 14:34:14 C 11 23 47.542 +30 07 14.96 – U F52
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-11-25 18:18:00 332241055.93 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)