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90738 (1993 FP21)
Classification: Main-belt Asteroid          SPK-ID: 2090738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134742162211776 4.8272e-08  
a 2.796967399709941 1.5831e-08 au
q 2.420097964637175 1.4124e-07 au
i 3.421883201882535 4.2578e-06 deg
node 2.959957752791068 6.6886e-05 deg
peri 161.1393657330739 6.8703e-05 deg
M 312.3557283010979 1.5734e-05 deg
tp 2459226.619348442780
(2021-Jan-12.11934844)
7.5447e-05 TDB
period 1708.557241757075
4.68
1.4506e-05
3.972e-08
d
yr
n .2107040906804956 1.7889e-09 deg/d
Q 3.173836834782708 1.7964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      9809 days (26.86 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:17:09  

Additional Information
 Earth MOID = 1.42795 au 
 Jupiter MOID = 1.80066 au 
 T_jup = 3.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO359376  
rotation period rot_per 10.10 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]

90738 (1993 FP21)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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