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22771 (1999 CU3)
Classification: Apollo [NEO]          SPK-ID: 2022771
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 436 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5241574884228184 1.3852e-08  
a 1.576434141203299 1.4752e-09 au
q .7501343810861952 2.2409e-08 au
i 11.40214630701925 4.272e-06 deg
node 338.9528573018583 7.4023e-06 deg
peri 305.7933366429917 8.0224e-06 deg
M 279.6349084618984 5.1876e-06 deg
tp 2459361.890184356500
(2021-May-27.39018436)
1.0642e-05 TDB
period 722.9565132865432
1.98
1.0148e-06
2.778e-09
d
yr
n .497955262016312 6.9896e-10 deg/d
Q 2.402733901320403 2.2484e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2393  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1999-02-10  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:11:55  

Additional Information
 Earth MOID = .0636576 au 
 Jupiter MOID = 2.84886 au 
 T_jup = 4.220 
[ 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 16.8   n/a MPO263548  
rotation period rot_per 3.7820 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2003) http://www.asu.cas.cz/~ppravec/neo.htm]
[Warner, B.D. (2015) Minor Planet Bull. 42, 172-183.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 223-237.]
SMASSII spectral type spec_B Sl   n/a Binzel et al. (2004) Icarus 170, 259-294  

22771 (1999 CU3)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

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