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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01767098031628513 7.4557e-08  
a 2.529815271094869 1.6377e-08 au
q 2.485110955235514 1.8885e-07 au
i 7.697914344197433 6.2863e-06 deg
node 298.4083924998072 3.6442e-05 deg
peri 186.9282121417523 0.00018105 deg
M 290.5719587329169 0.00017499 deg
tp 2458883.941902121966
(2020-Feb-04.44190212)
0.000715 TDB
period 1469.709974552978
4.02
1.4271e-05
3.907e-08
d
yr
n .2449462861606395 2.3785e-09 deg/d
Q 2.574519586954224 1.6666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      10318 days (28.25 yr)  
   first obs. used      1990-10-24  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5303  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:02:49  

Additional Information
 Earth MOID = 1.50111 au 
 Jupiter MOID = 2.45455 au 
 T_jup = 3.439 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456796.5 (2014-May-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01670778535777102 7.6253e-08  
q 2.487477726187052 1.9289e-07 au
tp 2457424.445637216482
(2016-Feb-05.94563722)
0.00072679 TDB
node 298.4978767925261 3.6399e-05 deg
peri 189.3098960914127 0.00018449 deg
i 7.702352807470408 6.2909e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      10318 days (28.25 yr)  
   first obs. used      1990-10-24  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5303  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:02:49  

Additional Information
 Jupiter MOID = 2.45455 au 
 T_jup = 3.439 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.81456777744418E-15 -1.465757652376446E-14 2.994688284465471E-11 1.333476877130731E-14 7.5694893897726E-12 1.317114234753954E-14
q -1.465757652376446E-14 3.720845534810836E-14 -7.338737775519103E-11 -3.346226976101645E-14 -1.859132685799699E-11 -3.19314803259243E-14
tp 2.994688284465471E-11 -7.338737775519103E-11 5.282264619910435E-7 -2.225612227187848E-11 1.314561376149151E-7 1.213566500197808E-10
node 1.333476877130731E-14 -3.346226976101645E-14 -2.225612227187848E-11 1.324885715701885E-9 -1.317606266814722E-9 7.262167045986232E-11
peri 7.5694893897726E-12 -1.859132685799699E-11 1.314561376149151E-7 -1.317606266814722E-9 3.403557394824593E-8 -4.172622965383796E-11
i 1.317114234753954E-14 -3.19314803259243E-14 1.213566500197808E-10 7.262167045986232E-11 -4.172622965383796E-11 3.957494263393874E-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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