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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129592679645006 5.3026e-08  
a 2.261992823041314 1.0982e-08 AU
q 1.968855111765619 1.1897e-07 AU
i 5.123598919196165 5.3353e-06 deg
node 160.0182437144418 5.4698e-05 deg
peri 224.5732485022736 5.8634e-05 deg
M 17.8044641517301 1.8528e-05 deg
tp 2456939.044371060431
(2014-Oct-08.54437106)
6.4045e-05 JED
period 1242.611191760851
3.40
9.0491e-06
2.478e-08
d
yr
n .2897125041098813 2.1098e-09 deg/d
Q 2.55513053431701 1.2405e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      8984 days (24.60 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50379  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:27:06  

Additional Information
 Earth MOID = .975531 AU 
 T_jup = 3.603 
[ 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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