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103152 (1999 XR220)
Classification: Main-belt Asteroid          SPK-ID: 2103152
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2892810668146114 4.0294e-08  
a 2.55942974928913 9.7002e-09 au
q 1.819035180977717 1.0694e-07 au
i 5.00237419692497 4.8451e-06 deg
node 125.4094201121931 3.7169e-05 deg
peri 253.8971418255931 3.8919e-05 deg
M 71.26314741620723 1.3754e-05 deg
tp 2458904.442719117373
(2020-Feb-24.94271912)
5.5777e-05 TDB
period 1495.592392169679
4.09
8.5024e-06
2.328e-08
d
yr
n .2407072955738579 1.3684e-09 deg/d
Q 3.299824317600543 1.2506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      8252 days (22.59 yr)  
   first obs. used      1998-06-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:28  

Additional Information
 Earth MOID = .827546 au 
 Jupiter MOID = 2.17802 au 
 T_jup = 3.371 
[ 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 15.6   n/a MPO449622  

103152 (1999 XR220)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XR220 = 1998 MZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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