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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129765068055357 5.2966e-08  
a 2.263064265924346 1.0918e-08 au
q 1.969397577443027 1.1878e-07 au
i 5.124570360941144 5.1993e-06 deg
node 160.0121903665599 5.4347e-05 deg
peri 224.828362837953 5.8215e-05 deg
M 133.3797930987318 1.7924e-05 deg
tp 2456939.786120357581
(2014-Oct-09.28612036)
6.266e-05 JED
period 1243.494181674869
3.40
8.9986e-06
2.464e-08
d
yr
n .2895067828263691 2.095e-09 deg/d
Q 2.556730954405666 1.2335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1433  
   data-arc span      9249 days (25.32 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51076  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:02:28  

Additional Information
 Earth MOID = .974677 au 
 Jupiter MOID = 2.89426 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 13.6 mag n/a MPO263412  

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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