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JPL Small-Body Database Browser
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154026 (2002 CW38)
Classification: Main-belt Asteroid          SPK-ID: 2154026
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05226346702589083 5.5641e-08  
a 2.766482201516483 2.1221e-08 au
q 2.621896250199812 1.5527e-07 au
i 2.810222757761142 4.893e-06 deg
node 77.70549248417883 0.00011273 deg
peri 142.7150589366994 0.00012444 deg
M 282.1285699458377 5.5452e-05 deg
tp 2459364.051463361333
(2021-May-29.55146336)
0.00026021 TDB
period 1680.700183867811
4.60
1.9339e-05
5.295e-08
d
yr
n .2141964423253222 2.4646e-09 deg/d
Q 2.911068152833153 2.233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      10283 days (28.15 yr)  
   first obs. used      1991-12-08  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:29:28  

Additional Information
 Earth MOID = 1.6139 au 
 Jupiter MOID = 2.05549 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05416996209163759 5.5119e-08  
q 2.615156753917993 1.5393e-07 au
tp 2457686.308065186537
(2016-Oct-24.80806519)
0.00024848 TDB
node 77.7734114064514 0.0001127 deg
peri 143.4404384409702 0.00012388 deg
i 2.811063941075406 4.8939e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      10283 days (28.15 yr)  
   first obs. used      1991-12-08  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:29:28  

Additional Information
 Jupiter MOID = 2.05549 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.038055924086745E-15 -8.41309891359579E-15 -4.468118103713296E-12 4.435206147861989E-15 -8.399764380390139E-13 -8.583216781416618E-16
q -8.41309891359579E-15 2.369361174164383E-14 1.360930548280921E-11 -1.467268436509312E-14 2.54655266611096E-12 2.773479074618731E-15
tp -4.468118103713296E-12 1.360930548280921E-11 6.17434705500807E-8 -6.580199726387189E-11 1.28039229037069E-8 6.914332286665686E-12
node 4.435206147861989E-15 -1.467268436509312E-14 -6.580199726387189E-11 1.270204522429981E-8 -1.269995652796229E-8 -6.247830808526846E-11
peri -8.399764380390139E-13 2.54655266611096E-12 1.28039229037069E-8 -1.269995652796229E-8 1.534650419899634E-8 6.378265837517488E-11
i -8.583216781416618E-16 2.773479074618731E-15 6.914332286665686E-12 -6.247830808526846E-11 6.378265837517488E-11 2.395071158136443E-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 15.5   n/a MPO453998  
rotation period rot_per 10.709 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

154026 (2002 CW38)          Discovered 2002-Feb-07 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2002 CW38 = 2002 AN153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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