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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 439 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5241464949490027 1.3817e-08  
a 1.576209386756706 1.418e-09 au
q .7500447613824618 2.2332e-08 au
i 11.4020409707116 4.2707e-06 deg
node 338.9495074827468 7.4008e-06 deg
peri 305.8082621260617 8.0184e-06 deg
M 17.23562500024372 5.3002e-06 deg
tp 2459361.894603722680
(2021-May-27.39460372)
1.0595e-05 TDB
period 722.8019093974764
1.98
9.7539e-07
2.67e-09
d
yr
n .4980617722774058 6.7212e-10 deg/d
Q 2.402374012130951 2.1613e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2414  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      8184 days (22.41 yr)  
   first obs. used      1999-02-10  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 17:14:38  

Additional Information
 Earth MOID = .0633615 au 
 Jupiter MOID = 2.84831 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 16.81   n/a MPO636403  
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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