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7785 (1994 QW)
Classification: Main-belt Asteroid          SPK-ID: 2007785
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112027064503517 5.9123e-08  
a 2.302396586126594 1.0215e-08 au
q 2.046363854427267 1.3714e-07 au
i 8.395879444683505 5.7952e-06 deg
node 136.218639092141 3.6271e-05 deg
peri 214.9969224884583 4.2242e-05 deg
M 33.77791115955663 2.1442e-05 deg
tp 2457280.771121585513
(2015-Sep-15.27112159)
7.5928e-05 JED
period 1276.052744221295
3.49
8.492e-06
2.325e-08
d
yr
n .2821199998434926 1.8775e-09 deg/d
Q 2.558429317825921 1.1351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      10328 days (28.28 yr)  
   first obs. used      1987-09-01  
   last obs. used      2015-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50341  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:04:57  

Additional Information
 Earth MOID = 1.04313 au 
 Jupiter MOID = 2.81561 au 
 T_jup = 3.568 
[ 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 13.9 mag n/a MPO347588  

7785 (1994 QW)          Discovered 1994-Aug-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 QW = 1987 RG2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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