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
2011-03-23 19:31:16 C 08 38 58.71 +40 26 23.7 – c A24
2011-03-23 19:32:19 C 08 38 58.71 +40 26 22.9 – c A24
2011-03-23 19:56:47 C 08 38 58.13 +40 26 10.8 – c A24
2011-03-23 20:46:43 C 08 38 56.89 +40 25 45.1 – c A24
2011-03-23 20:47:45 C 08 38 56.87 +40 25 44.6 – c A24
2011-03-24 04:07:15 C 08 38 46.92 +40 22 03.0 – c 704
2011-03-24 04:25:15 C 08 38 46.51 +40 21 53.9 – c 704
2011-03-24 04:43:21 C 08 38 46.11 +40 21 45.2 – c 704
2011-03-24 05:19:32 C 08 38 45.11 +40 21 25.1 – c 704
2011-03-25 21:25:17 C 08 37 55.70 +40 00 57.6 – c A24
2011-03-25 21:43:34 C 08 37 55.32 +40 00 48.3 – c A24
2011-03-25 21:53:30 C 08 37 55.12 +40 00 42.9 – c A24
2011-03-25 22:03:15 C 08 37 54.92 +40 00 37.6 – c A24
2011-03-25 22:08:00 C 08 37 54.83 +40 00 35.4 – c A24
2011-03-25 22:22:14 C 08 37 54.52 +40 00 27.7 – c A24
2011-03-30 21:30:06 C 08 36 15.26 +38 59 14.1 – c A24
2011-03-30 21:31:08 C 08 36 15.23 +38 59 13.4 – c A24
2011-03-30 21:32:11 C 08 36 15.15 +38 59 12.5 – c A24
2011-03-31 21:26:09 C 08 36 03.35 +38 46 52.6 – c A24
2011-03-31 21:40:40 C 08 36 03.23 +38 46 45.0 – c A24
2011-03-31 21:49:35 C 08 36 03.12 +38 46 40.6 – c A24
2011-03-31 22:01:50 C 08 36 03.03 +38 46 34.2 – c A24
2011-03-31 22:10:44 C 08 36 02.94 +38 46 29.7 – c A24
2011-03-31 22:25:15 C 08 36 02.79 +38 46 22.1 – c A24
2011-04-01 21:03:57 C 08 35 54.07 +38 34 42.0 – c A24
2011-04-01 21:17:59 C 08 35 53.97 +38 34 34.7 – c A24
2011-04-01 21:23:01 C 08 35 53.95 +38 34 32.4 – c A24
2011-04-01 21:42:05 C 08 35 53.79 +38 34 22.0 – c A24
2011-04-01 21:47:07 C 08 35 53.71 +38 34 19.2 – c A24
2011-04-01 22:01:09 C 08 35 53.73 +38 34 11.2 – c A24
2011-04-02 20:27:33 C 08 35 47.37 +38 22 38.1 – c A24
2011-04-02 20:41:58 C 08 35 47.30 +38 22 30.6 – c A24
2011-04-02 20:47:06 C 08 35 47.29 +38 22 28.2 – c A24
2011-04-02 21:06:40 C 08 35 47.16 +38 22 17.4 – c A24
2011-04-02 21:11:49 C 08 35 47.14 +38 22 14.8 – c A24
2011-04-05 20:40:01 C 08 35 41.13 +37 45 25.3 – c A24
2011-04-05 20:45:59 C 08 35 41.01 +37 45 23.5 – c A24
2011-04-05 21:08:47 C 08 35 41.12 +37 45 10.6 – c A24
2011-04-05 21:14:45 C 08 35 41.10 +37 45 07.7 – c A24
2011-04-05 21:31:36 C 08 35 41.09 +37 44 59.0 – c A24
2011-04-06 20:15:31 C 08 35 43.63 +37 33 17.9 – c A24
2011-04-06 20:16:35 C 08 35 43.65 +37 33 17.5 – c A24
2011-04-06 20:17:39 C 08 35 43.64 +37 33 16.9 – c A24
2011-04-07 20:16:43 C 08 35 48.45 +37 20 58.4 – c A24
2011-04-07 20:33:49 C 08 35 48.49 +37 20 49.5 – c A24
2011-04-07 20:39:51 C 08 35 48.52 +37 20 46.7 – c A24
2011-04-07 21:09:02 C 08 35 48.60 +37 20 31.0 – c A24
2011-04-08 21:14:10 C 08 35 55.65 +37 08 10.1 – c A24
2011-04-08 21:23:40 C 08 35 55.71 +37 08 05.3 – c A24
2011-04-08 21:27:10 C 08 35 55.70 +37 08 03.6 – c A24
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)