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101875 (1999 NA9)
Classification: Main-belt Asteroid          SPK-ID: 2101875
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859225306043081 3.2304e-08  
a 2.254194318174469 7.5391e-09 au
q 1.835088806065619 7.3662e-08 au
i 6.878218099347617 3.6519e-06 deg
node 122.0178810034233 3.3813e-05 deg
peri 156.9511882781603 3.564e-05 deg
M 78.53181241962999 1.0682e-05 deg
tp 2458730.832522429231
(2019-Sep-04.33252243)
3.667e-05 TDB
period 1236.190645986041
3.38
6.2016e-06
1.698e-08
d
yr
n .291217217319136 1.4609e-09 deg/d
Q 2.67329983028332 8.9408e-09 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      9453 days (25.88 yr)  
   first obs. used      1994-12-09  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:03  

Additional Information
 Earth MOID = .820894 au 
 Jupiter MOID = 2.46966 au 
 T_jup = 3.592 
[ 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 16.0   n/a MPO432545  

101875 (1999 NA9)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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