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15491 (1999 CW85)
Classification: Main-belt Asteroid          SPK-ID: 2015491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172454953625487 3.3505e-08  
a 2.204905798308108 6.7175e-09 au
q 1.725899945926907 7.3677e-08 au
i 5.187752689940234 3.9218e-06 deg
node 326.919964620395 4.0784e-05 deg
peri 351.3404310038255 4.2015e-05 deg
M 349.6426101774289 1.1295e-05 deg
tp 2459034.905772042779
(2020-Jul-04.40577204)
3.7568e-05 TDB
period 1195.868664555654
3.27
5.465e-06
1.496e-08
d
yr
n .3010364019645623 1.3757e-09 deg/d
Q 2.683911650689309 8.1768e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      22546 days (61.73 yr)  
   first obs. used      1958-11-11  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47913  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:59:39  

Additional Information
 Earth MOID = .712994 au 
 Jupiter MOID = 2.62327 au 
 T_jup = 3.626 
[ 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 13.7   n/a MPO473975  
diameter diameter 4.924 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.902 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.441   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15491 (1999 CW85)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CW85 = 1958 VE = 1984 QS1 = 1984 SC3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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