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85904 (1999 CH70)
Classification: Main-belt Asteroid          SPK-ID: 2085904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07614418487177585 3.4944e-08  
a 2.626715120630066 1.265e-08 au
q 2.426706038879321 8.8471e-08 au
i 6.535295617075506 3.6001e-06 deg
node 256.7714740032566 3.7366e-05 deg
peri 211.8248651804699 4.7776e-05 deg
M 123.3742666719982 3.0393e-05 deg
tp 2458863.607053904281
(2020-Jan-15.10705390)
0.00012987 TDB
period 1554.955225018576
4.26
1.1233e-05
3.075e-08
d
yr
n .2315179203926591 1.6725e-09 deg/d
Q 2.826724202380811 1.3614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      8187 days (22.41 yr)  
   first obs. used      1999-01-15  
   last obs. used      2021-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55148  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:51:40  

Additional Information
 Earth MOID = 1.44654 au 
 Jupiter MOID = 2.29269 au 
 T_jup = 3.389 
[ 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 15.04   n/a MPO637178  
diameter diameter 3.854 km 0.500 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.019 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.130   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

85904 (1999 CH70)          Discovered 1999-Feb-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 CH70 = 2001 PP40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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