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JPL Small-Body Database Browser
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26375 (1999 DE9)
Classification: TransNeptunian Object          SPK-ID: 2026375
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4148535812572081 1.5168e-05  
a 55.23524746656591 0.0019264 au
q 32.32070724343291 0.00030684 au
i 7.635417530762892 3.4675e-05 deg
node 323.1199841333597 0.00021395 deg
peri 159.4472337144583 0.0017764 deg
M 30.07169845569809 0.0021675 deg
tp 2446475.482536590702
(1986-Feb-13.98253659)
0.25085 TDB
period 149941.8562430073
410.52
7.8443
0.02148
d
yr
n .002400930660859342 1.2561e-07 deg/d
Q 78.14978768969891 0.0027256 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      10963 days (30.02 yr)  
   first obs. used      1990-01-29  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .42416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:44:04  

Additional Information
 Earth MOID = 31.3376 au 
 Jupiter MOID = 27.032 au 
 T_jup = 5.971 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 4.8   n/a MPO468035  
rotation period rot_per 24. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.]

26375 (1999 DE9)          Discovered 1999-Feb-20 by Trujillo, C. A., Luu, J. at Kitt Peak
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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