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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 195 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646463012575573 2.5166e-08  
a 1.122920698419507 7.6094e-10 au
q .9380359588191823 2.7792e-08 au
i 37.12099025844711 8.6769e-06 deg
node 156.8525778078703 2.4055e-06 deg
peri 249.4339912761322 1.2925e-05 deg
M 296.8335642132973 1.4909e-05 deg
tp 2459076.761602854234
(2020-Aug-15.26160285)
1.8059e-05 TDB
period 434.6323595054528
1.19
4.4179e-07
1.21e-09
d
yr
n .8282862334724148 8.4192e-10 deg/d
Q 1.307805438019832 8.8622e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1213  
   # delay obs. used      0  
   # Doppler obs. used      4  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1991-01-19  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-06 05:50:33  

Additional Information
 Earth MOID = .0230972 au 
 Jupiter MOID = 3.95864 au 
 T_jup = 5.364 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a PDS3 (MPC 30437)  
diameter diameter 1.602 km 0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 2.3896 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 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.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.075   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
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
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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