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266591 (2008 HX68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266591
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451386625873513 6.6706e-08  
a 3.948512081998225 8.1521e-08 au
q 2.980579111007182 2.6542e-07 au
i 8.980721148327895 9.5514e-06 deg
node 187.4364807803947 5.0603e-05 deg
peri 121.7996077609563 5.4956e-05 deg
M 197.3107223831543 1.8963e-05 deg
tp 2460691.605249567451
(2025-Jan-16.10524957)
0.00017022 TDB
period 2865.818182205793
7.85
8.8752e-05
2.43e-07
d
yr
n .1256185763058114 3.8903e-09 deg/d
Q 4.916445052989268 1.0151e-07 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      6284 days (17.20 yr)  
   first obs. used      2001-08-25  
   last obs. used      2018-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:16:28  

Additional Information
 Earth MOID = 1.979 au 
 Jupiter MOID = .807229 au 
 T_jup = 2.986 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO427480  

266591 (2008 HX68)          Discovered 2008-Apr-30 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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