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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113207420385305 6.6385e-08  
a 2.302079881417364 1.5289e-08 AU
q 2.04581064078601 1.5282e-07 AU
i 8.39592680814282 7.251e-06 deg
node 136.2217817045809 4.4557e-05 deg
peri 215.1550862868573 5.5598e-05 deg
M 224.3576450268052 3.7125e-05 deg
tp 2457281.197464600536
(2015-Sep-15.69746460)
0.00013439 JED
period 1275.78946333091
3.49
1.271e-05
3.48e-08
d
yr
n .2821782201117178 2.8112e-09 deg/d
Q 2.558349122048717 1.6991e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      9715 days (26.60 yr)  
   first obs. used      1987-09-01  
   last obs. used      2014-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53844  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:53:22  

Additional Information
 Earth MOID = 1.04335 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 13.8 mag n/a MPO256921  

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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