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JPL Small-Body Database Browser
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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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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 412 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .524242549754651 1.4171e-08  
a 1.576515052818876 1.6381e-09 au
q .7500387818025204 2.2984e-08 au
i 11.40089319816056 4.4881e-06 deg
node 338.9699172129333 7.7491e-06 deg
peri 305.7568561214459 8.3582e-06 deg
M 340.9041598639384 5.0578e-06 deg
tp 2458638.851457998820
(2019-Jun-04.35145800)
1.0217e-05 TDB
period 723.0121733948807
1.98
1.1269e-06
3.085e-09
d
yr
n .4979169276080531 7.7603e-10 deg/d
Q 2.402991323835233 2.4968e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2301  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      7544 days (20.65 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4555  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-15 05:45:39  

Additional Information
 Earth MOID = .0631932 au 
 Jupiter MOID = 2.84721 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. 2019-January); 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

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