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99835 (2002 NQ20)
Classification: Main-belt Asteroid          SPK-ID: 2099835
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113747046007511 8.0971e-08  
a 2.588276344470989 2.5802e-08 au
q 2.30000783118042 2.0247e-07 au
i 12.08728642817876 8.2967e-06 deg
node 267.7157061649493 3.7127e-05 deg
peri 288.8899363660137 5.2115e-05 deg
M 171.5194217713311 3.7037e-05 deg
tp 2456675.855175615734
(2014-Jan-18.35517562)
0.00015417 JED
period 1520.948089051567
4.16
2.2743e-05
6.227e-08
d
yr
n .2366944687931386 3.5393e-09 deg/d
Q 2.876544857761557 2.8676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      5869 days (16.07 yr)  
   first obs. used      1999-10-14  
   last obs. used      2015-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55507  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 19:07:40  

Additional Information
 Earth MOID = 1.32871 au 
 Jupiter MOID = 2.22756 au 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO348125  

99835 (2002 NQ20)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

[ show close-approach data ]
Alternate Designations
 2002 NQ20 = 2001 BR53 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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