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21144 (1993 FA46)
Classification: Main-belt Asteroid          SPK-ID: 2021144
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179451671911469 4.283e-08  
a 2.699687732491935 1.2978e-08 au
q 2.381272611519286 1.1757e-07 au
i 2.557899853286053 4.5697e-06 deg
node 201.4683754176015 7.8597e-05 deg
peri 182.6530820701968 8.011e-05 deg
M 248.5207307143126 1.7252e-05 deg
tp 2459702.218758692409
(2022-May-02.71875869)		 7.9225e-05 TDB
period 1620.200368073784
4.44		 1.1683e-05
3.199e-08		 d
yr
n .2221947402888169 1.6022e-09 deg/d
Q 3.018102853464585 1.4508e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      9959 days (27.27 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53402  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:29  

Additional Information
 Earth MOID = 1.3835 au 
 Jupiter MOID = 2.42751 au 
 T_jup = 3.357 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.99   n/a E2021B10  

21144 (1993 FA46)          Discovered 1993-Mar-19 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 FA46 = 1997 EF45 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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