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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2410927923979867 7.0973e-08  
a 2.347074421714292 1.4618e-08 au
q 1.781211695417304 1.7453e-07 au
i 2.142288327790592 6.2441e-06 deg
node 352.9232852669259 0.00014801 deg
peri 12.05076488541706 0.00014879 deg
M 59.74461683578976 1.6329e-05 deg
tp 2457382.535885678251
(2015-Dec-26.03588568)
5.8135e-05 JED
period 1313.374916630554
3.60
1.227e-05
3.359e-08
d
yr
n .2741029963657105 2.5608e-09 deg/d
Q 2.912937148011281 1.8143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      9272 days (25.39 yr)  
   first obs. used      1990-08-16  
   last obs. used      2016-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51394  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 06:27:07  

Additional Information
 Earth MOID = .778254 au 
 Jupiter MOID = 2.54029 au 
 T_jup = 3.520 
[ 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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