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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344668437833504 3.9934e-08  
a 2.796200626147574 1.1385e-08 au
q 2.420204353364481 1.1247e-07 au
i 3.42227563950444 4.2333e-06 deg
node 2.954929342402388 5.4599e-05 deg
peri 161.0743033338253 5.6707e-05 deg
M 35.86090496303791 1.3477e-05 deg
tp 2459226.374402310871
(2021-Jan-11.87440231)
6.3857e-05 TDB
period 1707.85470225061
4.68
1.043e-05
2.856e-08
d
yr
n .2107907654706178 1.2874e-09 deg/d
Q 3.172196898930666 1.2916e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1043  
   data-arc span      10307 days (28.22 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:57  

Additional Information
 Earth MOID = 1.42887 au 
 Jupiter MOID = 1.80076 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 15.26   n/a MPO637234  
rotation period rot_per 10.10 h n/a LCDB (Rev. 2020-October); 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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