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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 419 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5241769037084961 1.4152e-08  
a 1.576480528329174 1.561e-09 au
q .7501258462328535 2.292e-08 au
i 11.40119810089841 4.2939e-06 deg
node 338.9567365355436 7.4753e-06 deg
peri 305.7817717685114 8.1354e-06 deg
M 180.0670519228146 5.3212e-06 deg
tp 2459361.859551241356
(2021-May-27.35955124)
1.1219e-05 TDB
period 722.9884233936077
1.98
1.0739e-06
2.94e-09
d
yr
n .4979332840631248 7.3958e-10 deg/d
Q 2.402835210425495 2.3793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2331  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      7632 days (20.90 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45653  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-06 06:01:21  

Additional Information
 Earth MOID = .0628587 au 
 Jupiter MOID = 2.84926 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-August); 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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