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JPL Small-Body Database Browser
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49821 (1999 XA70)
Classification: Main-belt Asteroid          SPK-ID: 2049821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06082128156518036 4.913e-08  
a 2.19473351996957 8.3644e-09 au
q 2.061247014590961 1.0607e-07 au
i 1.61151896941014 4.093e-06 deg
node 111.2307305212165 0.00017811 deg
peri 102.2022039633782 0.00018085 deg
M 215.0247843088187 3.1122e-05 deg
tp 2459078.758155544723
(2020-Aug-17.25815554)
0.00010303 TDB
period 1187.602551065377
3.25
6.7892e-06
1.859e-08
d
yr
n .303131716648007 1.7329e-09 deg/d
Q 2.328220025348178 8.8732e-09 au
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      9573 days (26.21 yr)  
   first obs. used      1992-09-28  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59836  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:52:24  

Additional Information
 Earth MOID = 1.05524 au 
 Jupiter MOID = 2.63337 au 
 T_jup = 3.667 
[ 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 16.2   n/a MPO302341  

49821 (1999 XA70)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XA70 = 1992 ST11 = 1994 CK19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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