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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 200 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646591433647595 1.6957e-08  
a 1.122933326814187 5.2976e-10 au
q .938032087165223 1.8784e-08 au
i 37.12159216813906 1.4916e-06 deg
node 156.8519236694519 1.8327e-06 deg
peri 249.4467371142715 7.2665e-06 deg
M 102.4807498043698 1.0039e-05 deg
tp 2459076.771662597524
(2020-Aug-15.27166260)
1.2042e-05 TDB
period 434.6396913558882
1.19
3.0757e-07
8.421e-10
d
yr
n .8282722612768185 5.8612e-10 deg/d
Q 1.30783456646315 6.1699e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1231  
   # delay obs. used      0  
   # Doppler obs. used      4  
   data-arc span      10941 days (29.95 yr)  
   first obs. used      1991-01-19  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41562  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:04:06  

Additional Information
 Earth MOID = .0213163 au 
 Jupiter MOID = 3.95786 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 17.33   n/a E2021B10  
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. 2020-October); 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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