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7822 (1991 CS)
Classification: Apollo [NEO, PHA]          SPK-ID: 2007822
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 64 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646032339285573 3.6838e-08  
a 1.122771081817464 2.463e-09 AU
q .9379593307888447 4.0591e-08 AU
i 37.1215725604135 1.4758e-05 deg
node 156.8726104538746 2.874e-06 deg
peri 249.4445899080893 1.5235e-05 deg
M 274.4517922669457 2.2377e-05 deg
tp 2456903.762745818786
(2014-Sep-03.26274582)
2.7289e-05 JED
period 434.5454975604281
1.19
1.4299e-06
3.915e-09
d
yr
n .8284518008380427 2.726e-09 deg/d
Q 1.307582832846083 2.8684e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      416  
   # delay obs. used      0  
   # Doppler obs. used      4  
   data-arc span      7020 days (19.22 yr)  
   first obs. used      1991-01-19  
   last obs. used      2010-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 09:20:21  

Additional Information
 Earth MOID = .0217898 AU 
 T_jup = 5.365 
[ 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 17.4 mag n/a PDS3 (MPC 30437)  
rotation period rot_per 2.389 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Krugly, Yu.N.; Bel'skaya, I.N.; Shevchenko, V.G.; et al. (2002) Icarus 158, 294-304.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7822 (1991 CS)          Discovered 1991-Feb-13 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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