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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111435388815874 5.9122e-08  
a 2.302115306125843 1.0195e-08 au
q 2.046250064089548 1.371e-07 au
i 8.395942445035825 5.7952e-06 deg
node 136.2166421827278 3.6272e-05 deg
peri 214.9441705465935 4.225e-05 deg
M 90.26373785807436 2.1495e-05 deg
tp 2457280.610600613379
(2015-Sep-15.11060061)
7.5961e-05 JED
period 1275.818911468689
3.49
8.4752e-06
2.32e-08
d
yr
n .2821717069435642 1.8745e-09 deg/d
Q 2.557980548162138 1.1328e-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 = 1.04409 au 
 Jupiter MOID = 2.81687 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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