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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0174988733586099 7.392e-08  
a 2.529580339302866 1.3933e-08 au
q 2.485315533294975 1.8777e-07 au
i 7.698680229403464 6.1837e-06 deg
node 298.4063380498261 3.1565e-05 deg
peri 186.3231656309855 0.00017133 deg
M 29.13797716292411 0.0001647 deg
tp 2458881.559970910958
(2020-Feb-02.05997091)
0.00067228 TDB
period 1469.505251947909
4.02
1.2141e-05
3.324e-08
d
yr
n .244980410599282 2.0241e-09 deg/d
Q 2.573845145310756 1.4177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      10695 days (29.28 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:03:12  

Additional Information
 Earth MOID = 1.50097 au 
 Jupiter MOID = 2.4539 au 
 T_jup = 3.439 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457099.5 (2015-Mar-18.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01683218675420796 7.6173e-08  
q 2.486569522842789 1.9327e-07 au
tp 2457427.179731392354
(2016-Feb-08.67973139)
0.00065934 TDB
node 298.4961085453363 3.1537e-05 deg
peri 190.0248641884597 0.00016813 deg
i 7.70231080765348 6.1871e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      10695 days (29.28 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:03:12  

Additional Information
 Jupiter MOID = 2.4539 au 
 T_jup = 3.439 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.802249957663134E-15 -1.468515973635423E-14 2.708945800889431E-11 2.253166112408147E-15 6.893439972719696E-12 1.144045070531282E-14
q -1.468515973635423E-14 3.735322675242983E-14 -6.851169415872917E-11 -5.680517177841644E-15 -1.744652852554331E-11 -2.830550559931639E-14
tp 2.708945800889431E-11 -6.851169415872917E-11 4.347324170100416E-7 -5.085271468061587E-11 1.08897018549903E-7 9.020273527084097E-11
node 2.253166112408147E-15 -5.680517177841644E-15 -5.085271468061587E-11 9.945767111469638E-10 -9.977371957992212E-10 5.400015009782581E-11
peri 6.893439972719696E-12 -1.744652852554331E-11 1.08897018549903E-7 -9.977371957992212E-10 2.826896985318485E-8 -3.08363195135762E-11
i 1.144045070531282E-14 -2.830550559931639E-14 9.020273527084097E-11 5.400015009782581E-11 -3.08363195135762E-11 3.827977582806746E-11

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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