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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09914598217815829 4.6332e-08  
a 2.299038361997499 6.4341e-09 au
q 2.071097945531993 1.0614e-07 au
i 3.170420675341314 4.9515e-06 deg
node 12.89409467454017 5.663e-05 deg
peri 143.8928846510985 5.9592e-05 deg
M 41.71947856563534 1.7953e-05 deg
tp 2458852.944933950748
(2020-Jan-04.44493395)
6.3438e-05 TDB
period 1273.261929536338
3.49
5.345e-06
1.463e-08
d
yr
n .2827383680049988 1.1869e-09 deg/d
Q 2.526978778463005 7.072e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1989  
   data-arc span      15443 days (42.28 yr)  
   first obs. used      1978-03-06  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:45:43  

Additional Information
 Earth MOID = 1.08119 au 
 Jupiter MOID = 2.45181 au 
 T_jup = 3.584 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO502228  
diameter diameter 3.661 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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