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26927 (1997 CD4)
Classification: Main-belt Asteroid          SPK-ID: 2026927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345842763163446 2.7734e-08  
a 2.323822558309612 6.3083e-09 au
q 2.011072581011916 6.462e-08 au
i 2.333546110057775 3.3754e-06 deg
node 208.2924687065218 6.816e-05 deg
peri 145.5426778430178 6.9087e-05 deg
M .1942583631330905 1.1234e-05 deg
tp 2458999.801799595717
(2020-May-30.30179960)
4.0378e-05 TDB
period 1293.906432072601
3.54
5.2687e-06
1.442e-08
d
yr
n .2782272280873864 1.1329e-09 deg/d
Q 2.636572535607308 7.1573e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1756  
   data-arc span      9174 days (25.12 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:26:12  

Additional Information
 Earth MOID = 1.00654 au 
 Jupiter MOID = 2.7872 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457206.5 (2015-Jul-03.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354352823644203 2.7744e-08  
q 2.008971932459335 6.4699e-08 au
tp 2457706.782186745524
(2016-Nov-14.28218675)
3.9665e-05 TDB
node 208.3339646451969 6.8116e-05 deg
peri 145.8246440533752 6.9031e-05 deg
i 2.334102153703923 3.3772e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1756  
   data-arc span      9174 days (25.12 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:26:12  

Additional Information
 Jupiter MOID = 2.7872 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.6971906735589E-16 -1.788627290608884E-15 1.497637495068333E-13 -5.983338543422176E-15 4.908576287192275E-14 -6.761497966637103E-17
q -1.788627290608884E-15 4.185921993112934E-15 -3.469126563443751E-13 1.360302925942274E-14 -1.170834103916084E-13 2.140882631406772E-16
tp 1.497637495068333E-13 -3.469126563443751E-13 1.573344373552269E-9 -7.859101078625392E-12 4.500756681097174E-10 2.246027395645629E-13
node -5.983338543422176E-15 1.360302925942274E-14 -7.859101078625392E-12 4.639813989907865E-9 -4.63770790700265E-9 -7.759008155949221E-12
peri 4.908576287192275E-14 -1.170834103916084E-13 4.500756681097174E-10 -4.63770790700265E-9 4.765295929281487E-9 7.81307481942617E-12
i -6.761497966637103E-17 2.140882631406772E-16 2.246027395645629E-13 -7.759008155949221E-12 7.81307481942617E-12 1.14057828075461E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO435951  

26927 (1997 CD4)          Discovered 1997-Feb-03 by JPL/GEODSS NEAT at Haleakala
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 CD4 = 1999 XP87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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