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276049 (2002 CE26)
Classification: Apollo [NEO]          SPK-ID: 2276049
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 168 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5608180658279002 1.361e-08  
a 2.23271468921143 4.1471e-10 au
q .9805679556623347 3.0366e-08 au
i 47.29383366487743 8.6944e-06 deg
node 161.9059827607706 1.4003e-06 deg
peri 228.0239629768586 5.7828e-06 deg
M 245.5790196525504 9.5226e-07 deg
tp 2459387.803511910583
(2021-Jun-22.30351191)
3.2664e-06 TDB
period 1218.563797167447
3.34
3.3951e-07
9.295e-10
d
yr
n .295429751677196 8.2311e-11 deg/d
Q 3.484861422760526 6.4729e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   # delay obs. used      7  
   # Doppler obs. used      0  
   data-arc span      6686 days (18.31 yr)  
   first obs. used      2001-12-26  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-16 06:37:33  

Additional Information
 Earth MOID = .0973923 au 
 Jupiter MOID = 2.58906 au 
 T_jup = 3.066 
[ 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 16.4   n/a MPO476181  
magnitude slope G -0.25   .05 Pravec et al., Icarus 181 (2006), 63-93.  
diameter diameter 3.5 km 0.4 Shepard et al. 2006, Icarus 184, 198-210. Spheroidal. Secondary: ~0.3 km diameter
bulk density density 0.9 g/cm^3 +0.5-0.4 Shepard et al. 2006, Icarus 184, 198-210. Porosity ~20%.
rotation period rot_per 3.2931 h 0.0003 Shepard et al. 2006, Icarus 184, 198-210.
pole direction pole 327/-35   10/15 Shepard et al. 2006, Icarus 184, 198-210. Shepard et al. gives original J2000 ecliptic angles lamba=317 +/-10, beta= -20 +/-15
geometric albedo albedo .07   +0.05/-0.2 Shepard et al. 2006, Icarus 184, 198-210. Consistent with standard C-class taxonomy and thermal model. Radar albedo: 0.24 +0.06/-0.05
Tholen spectral type spec_T C   n/a Shepard et al. 2006, Icarus 184, 198-210. No evidence of hydration.

276049 (2002 CE26)          Discovered 2002-Feb-10 by LINEAR at Socorro
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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