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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112770182825775 5.9639e-08  
a 2.302383892140271 1.4567e-08 AU
q 2.046181477681066 1.3843e-07 AU
i 8.395956218813733 6.2213e-06 deg
node 136.2195763696491 4.1408e-05 deg
peri 215.0902444468557 5.1651e-05 deg
M 280.8563312609165 3.5354e-05 deg
tp 2457281.029612435346
(2015-Sep-15.52961244)
0.00012691 JED
period 1276.042191191126
3.49
1.211e-05
3.316e-08
d
yr
n .2821223330115416 2.6775e-09 deg/d
Q 2.558586306599476 1.6188e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      901  
   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      .50807  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:10:33  

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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