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JPL Small-Body Database Browser
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160855 (2001 DH81)
Classification: Main-belt Asteroid          SPK-ID: 2160855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936823026213544 6.3525e-08  
a 2.574447975152398 1.7832e-08 au
q 2.075822963345999 1.7179e-07 au
i 13.64140721750931 5.7001e-06 deg
node 24.65096412522323 1.4632e-05 deg
peri 329.4431653801178 1.9095e-05 deg
M 326.9179157922994 9.8744e-06 deg
tp 2458739.148434039810
(2019-Sep-12.64843404)
4.1001e-05 TDB
period 1508.775442954501
4.13
1.5676e-05
4.292e-08
d
yr
n .2386040955803496 2.479e-09 deg/d
Q 3.073072986958798 2.1285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      7305 days (20.00 yr)  
   first obs. used      1999-11-01  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:42:51  

Additional Information
 Earth MOID = 1.08328 au 
 Jupiter MOID = 2.40381 au 
 T_jup = 3.362 
[ 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 14.9   n/a MPO407233  

160855 (2001 DH81)          Discovered 2001-Feb-26 by Kobayashi, T. at Oizumi
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 2001 DH81 = 2003 XQ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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