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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170370255277797 8.6765e-09  
a 2.204352863106465 5.3848e-09 au
q 1.725926674484193 2.0411e-08 au
i 5.188044048201664 8.806e-07 deg
node 326.9195645816022 6.6212e-06 deg
peri 351.3323377286736 8.0046e-06 deg
M 49.87569849042416 5.1043e-06 deg
tp 2459034.882360486678
(2020-Jul-04.38236049)
1.7041e-05 TDB
period 1195.418851853131
3.27
4.3802e-06
1.199e-08
d
yr
n .3011496760670373 1.1035e-09 deg/d
Q 2.682779051728737 6.5535e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2888  
   data-arc span      22762 days (62.32 yr)  
   first obs. used      1958-11-11  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44737  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:00:01  

Additional Information
 Earth MOID = .711041 au 
 Jupiter MOID = 2.62412 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 13.73   n/a E2021B10  
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. 2020-October); 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]
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) 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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