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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05226346520321141 5.508e-08  
a 2.766482200722857 2.0949e-08 au
q 2.621896254490074 1.5415e-07 au
i 2.810222867574208 4.8416e-06 deg
node 77.70549046666815 0.00011164 deg
peri 142.7150614118092 0.00012345 deg
M 282.1285697249294 5.5451e-05 deg
tp 2459364.051464236229
(2021-May-29.55146424)
0.00026021 TDB
period 1680.700183144593
4.60
1.9091e-05
5.227e-08
d
yr
n .2141964424174925 2.433e-09 deg/d
Q 2.91106814695564 2.2044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      10360 days (28.36 yr)  
   first obs. used      1991-12-08  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 00:50:02  

Additional Information
 Earth MOID = 1.6139 au 
 Jupiter MOID = 2.05549 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456970.5 (2014-Nov-09.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05416887213572714 5.4579e-08  
q 2.615197600037737 1.5288e-07 au
tp 2457686.081031078081
(2016-Oct-24.58103108)
0.00024837 TDB
node 77.77367055730571 0.00011161 deg
peri 143.3930257875633 0.00012288 deg
i 2.811025853880595 4.8425e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      10360 days (28.36 yr)  
   first obs. used      1991-12-08  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 00:50:02  

Additional Information
 Jupiter MOID = 2.05549 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.978864131268913E-15 -8.275083014933229E-15 -4.440535702289198E-12 3.664327222700183E-15 -8.292978521884049E-13 -8.307718257555906E-16
q -8.275083014933229E-15 2.337327876676256E-14 1.355330927427855E-11 -1.256166044720529E-14 2.523003104309523E-12 2.707123026611676E-15
tp -4.440535702289198E-12 1.355330927427855E-11 6.168917593966044E-8 -6.706550879994106E-11 1.279118872682665E-8 6.964822835693704E-12
node 3.664327222700183E-15 -1.256166044720529E-14 -6.706550879994106E-11 1.245736040467188E-8 -1.245582830298833E-8 -5.139675474356191E-11
peri -8.292978521884049E-13 2.523003104309523E-12 1.279118872682665E-8 -1.245582830298833E-8 1.509917398998024E-8 5.27241003382695E-11
i -8.307718257555906E-16 2.707123026611676E-15 6.964822835693704E-12 -5.139675474356191E-11 5.27241003382695E-11 2.344969394644651E-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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