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7057 (1990 QL2)
Classification: Main-belt Asteroid          SPK-ID: 2007057
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302148572652123 5.299e-08  
a 2.262313364777628 9.4623e-09 au
q 1.967726552893928 1.1881e-07 au
i 5.124804816560975 5.1545e-06 deg
node 160.0126758445336 4.8963e-05 deg
peri 224.8836876471198 5.1788e-05 deg
M 191.2090089484701 1.603e-05 deg
tp 2458183.239330871426
(2018-Mar-05.73933087)
5.5661e-05 JED
period 1242.875332426174
3.40
7.7976e-06
2.135e-08
d
yr
n .2896509332897102 1.8172e-09 deg/d
Q 2.556900176661329 1.0694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1628  
   data-arc span      9368 days (25.65 yr)  
   first obs. used      1990-08-22  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4977  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:57:51  

Additional Information
 Earth MOID = .973356 au 
 Jupiter MOID = 2.89273 au 
 T_jup = 3.602 
[ 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 13.7 mag n/a MPO365333  

7057 (1990 QL2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 QL2 = 1992 EK 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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