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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112770199714053 5.9691e-08  
a 2.302383892552514 1.4579e-08 AU
q 2.046181474159106 1.3853e-07 AU
i 8.395956459725188 6.2431e-06 deg
node 136.2195746128905 4.1466e-05 deg
peri 215.0902453819873 5.1707e-05 deg
M 280.8563316957892 3.5361e-05 deg
tp 2457281.029610969257
(2015-Sep-15.52961097)
0.00012693 JED
period 1276.04219153384
3.49
1.212e-05
3.318e-08
d
yr
n .2821223329357703 2.6797e-09 deg/d
Q 2.558586310945922 1.6202e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      9800 days (26.83 yr)  
   first obs. used      1987-09-01  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50794  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:17:54  

Additional Information
 Earth MOID = 1.04537 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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