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7997 (1985 CN1)
Classification: Main-belt Asteroid          SPK-ID: 2007997
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09972777533959953 6.7719e-08  
a 2.299627515998359 1.1265e-08 au
q 2.070290779718113 1.5594e-07 au
i 3.171436726964677 6.7809e-06 deg
node 12.90893112322764 9.5382e-05 deg
peri 144.2028677209136 9.9069e-05 deg
M 5.645933926947871 2.6126e-05 deg
tp 2457580.523566114048
(2016-Jul-11.02356611)
9.2388e-05 JED
period 1273.751392062496
3.49
9.3594e-06
2.562e-08
d
yr
n .2826297205587955 2.0767e-09 deg/d
Q 2.528964252278604 1.2388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1168  
   data-arc span      13912 days (38.09 yr)  
   first obs. used      1978-03-06  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5216  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:00:50  

Additional Information
 Earth MOID = 1.07931 au 
 Jupiter MOID = 2.45352 au 
 T_jup = 3.584 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO302114  

7997 (1985 CN1)          Discovered 1985-Feb-13 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 CN1 = 1978 EC = 1978 ER6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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