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70955 (1999 XX2)
Classification: Main-belt Asteroid          SPK-ID: 2070955
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382259928325884 4.5199e-08  
a 2.671966177492017 1.6873e-08 au
q 2.302630999793087 1.179e-07 au
i 12.62890315631673 6.0731e-06 deg
node 37.37425544381295 2.3065e-05 deg
peri 60.05765253863992 3.2935e-05 deg
M 215.5529304453416 2.3064e-05 deg
tp 2459640.604818329779
(2022-Mar-02.10481833)
0.0001038 TDB
period 1595.309169713016
4.37
1.5111e-05
4.137e-08
d
yr
n .2256615876311682 2.1375e-09 deg/d
Q 3.041301355190948 1.9205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      15229 days (41.69 yr)  
   first obs. used      1977-10-11  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:18:11  

Additional Information
 Earth MOID = 1.34726 au 
 Jupiter MOID = 2.25957 au 
 T_jup = 3.332 
[ 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 15.3   n/a MPO474589  

70955 (1999 XX2)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XX2 = 1986 UX3 = 4276 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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