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JPL Small-Body Database Browser
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66234 (1999 CZ157)
Classification: Main-belt Asteroid          SPK-ID: 2066234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664569283546656 3.7176e-08  
a 2.171788345439146 6.343e-09 au
q 1.810279128420885 8.0801e-08 au
i 4.220783788659748 4.8511e-06 deg
node 325.6230684186571 3.9346e-05 deg
peri 321.5900344658035 4.1444e-05 deg
M 109.0771961965425 1.2434e-05 deg
tp 2458646.293815792889
(2019-Jun-11.79381579)
4.0498e-05 TDB
period 1169.027356412759
3.20
5.1214e-06
1.402e-08
d
yr
n .3079483110683439 1.3491e-09 deg/d
Q 2.533297562457408 7.3988e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1480  
   data-arc span      7598 days (20.80 yr)  
   first obs. used      1999-02-09  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:58:46  

Additional Information
 Earth MOID = .796287 au 
 Jupiter MOID = 2.63017 au 
 T_jup = 3.667 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO502574  
rotation period rot_per 2.929 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

66234 (1999 CZ157)          Discovered 1999-Feb-09 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 CZ157 = 1999 EU3 = 2000 OF47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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