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173384 (2000 CW21)
Classification: Main-belt Asteroid          SPK-ID: 2173384
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01749887403481512 7.3832e-08  
a 2.529580337255057 1.3545e-08 au
q 2.485315529572486 1.8747e-07 au
i 7.69867983827423 6.1669e-06 deg
node 298.4063433846912 3.0754e-05 deg
peri 186.3231483393022 0.0001699 deg
M 29.13799000592041 0.00016329 deg
tp 2458881.559918630804
(2020-Feb-02.05991863)
0.00066654 TDB
period 1469.505250163464
4.02
1.1803e-05
3.231e-08
d
yr
n .2449804108967658 1.9677e-09 deg/d
Q 2.573845144937629 1.3783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      802  
   data-arc span      10775 days (29.50 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:27:30  

Additional Information
 Earth MOID = 1.50097 au 
 Jupiter MOID = 2.4539 au 
 T_jup = 3.439 
[ 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 15.7   n/a MPO266538  
diameter diameter 4.139 km 0.334 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173384 (2000 CW21)          Discovered 2000-Feb-02 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2000 CW21 = 2002 TB114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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