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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646129450958697 3.7918e-08  
a 1.122767589316798 2.691e-09 AU
q .9379455097811702 4.1557e-08 AU
i 37.12235282710505 1.3961e-05 deg
node 156.8720974457421 2.7502e-06 deg
peri 249.4554936422311 1.4151e-05 deg
M 80.13450598108047 2.3736e-05 deg
tp 2456903.772426953794
(2014-Sep-03.27242695)
2.8352e-05 JED
period 434.5434700109785
1.19
1.5622e-06
4.277e-09
d
yr
n .8284556663362237 2.9784e-09 deg/d
Q 1.307589668852426 3.1339e-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      .64329  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:05:31  

Additional Information
 Earth MOID = .0235055 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. 2014-Mar-01) 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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