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85941 (1999 DC9)
Classification: Main-belt Asteroid          SPK-ID: 2085941
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1748580042818807 4.1112e-08  
a 2.65762486603468 1.3316e-08 au
q 2.192917885829956 1.1257e-07 au
i 16.81249510151192 3.8941e-06 deg
node 111.8670031708001 1.5565e-05 deg
peri 94.67158705521672 1.9165e-05 deg
M 11.53967154123884 1.0242e-05 deg
tp 2459345.774084784143
(2021-May-11.27408478)
4.5041e-05 TDB
period 1582.482604678025
4.33
1.1894e-05
3.256e-08
d
yr
n .2274906523053037 1.7098e-09 deg/d
Q 3.122331846239405 1.5645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1430  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1999-02-10  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:45  

Additional Information
 Earth MOID = 1.26354 au 
 Jupiter MOID = 2.12072 au 
 T_jup = 3.305 
[ 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 14.69   n/a MPO637178  

85941 (1999 DC9)          Discovered 1999-Feb-18 by NEAT at Haleakala
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 DC9 = 2003 AX36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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