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JPL Small-Body Database Browser
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66990 (1999 XA103)
Classification: Main-belt Asteroid          SPK-ID: 2066990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243119342762089 4.4037e-08  
a 3.182845160003979 2.4278e-08 au
q 2.787179521662215 1.4301e-07 au
i 1.331502436072109 5.0824e-06 deg
node 24.87041299935244 0.00020217 deg
peri 95.522714450853 0.00020321 deg
M 197.0048071315649 2.3327e-05 deg
tp 2459939.561400333752
(2022-Dec-26.06140033)
0.00013955 TDB
period 2074.061806184826
5.68
2.3731e-05
6.497e-08
d
yr
n .1735724552308347 1.986e-09 deg/d
Q 3.578510798345743 2.7296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1025  
   data-arc span      7592 days (20.79 yr)  
   first obs. used      1998-09-17  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:07:23  

Additional Information
 Earth MOID = 1.80354 au 
 Jupiter MOID = 1.49656 au 
 T_jup = 3.186 
[ 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 14.0   n/a MPO347958  

66990 (1999 XA103)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XA103 = 1998 SN111 = 1998 SV21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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