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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 205 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646591433956878 1.6927e-08  
a 1.122933326818582 5.2831e-10 au
q .9380320871341644 1.8751e-08 au
i 37.12159215512074 1.4909e-06 deg
node 156.8519236559566 1.8321e-06 deg
peri 249.4467371535093 7.2515e-06 deg
M 102.4807497647365 1.0015e-05 deg
tp 2459076.771662644648
(2020-Aug-15.27166264)
1.2013e-05 TDB
period 434.6396913584401
1.19
3.0673e-07
8.398e-10
d
yr
n .8282722612719555 5.8452e-10 deg/d
Q 1.307834566503 6.153e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1251  
   # delay obs. used      0  
   # Doppler obs. used      4  
   data-arc span      11103 days (30.40 yr)  
   first obs. used      1991-01-19  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-14 06:27:19  

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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