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120457 (1990 QZ2)
Classification: Main-belt Asteroid          SPK-ID: 2120457
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2411694613623153 7.176e-08  
a 2.347369955783764 1.4956e-08 au
q 1.781256007929312 1.7667e-07 au
i 2.142325711251924 6.2521e-06 deg
node 352.9251677180708 0.00014896 deg
peri 12.06755515672034 0.00014975 deg
M 4.910877412293912 1.6371e-05 deg
tp 2457382.580440406727
(2015-Dec-26.08044041)
5.9615e-05 JED
period 1313.622986684371
3.60
1.2555e-05
3.437e-08
d
yr
n .2740512336105295 2.6192e-09 deg/d
Q 2.913483903638216 1.8563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      9214 days (25.23 yr)  
   first obs. used      1990-08-16  
   last obs. used      2015-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51504  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 19:32:01  

Additional Information
 Earth MOID = .777596 au 
 Jupiter MOID = 2.53999 au 
 T_jup = 3.519 
[ 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 15.8 mag n/a MPO351696  

120457 (1990 QZ2)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1990 QZ2 = 2001 QF30 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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