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305777 (2009 DO47)
Classification: Main-belt Asteroid          SPK-ID: 2305777
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131991973145378 4.9009e-08  
a 2.353949098109685 1.8279e-08 au
q 1.85208903987342 1.1506e-07 au
i 9.44772844855318 7.424e-06 deg
node 343.6223472391506 3.1212e-05 deg
peri 96.85572115197515 3.5124e-05 deg
M 152.3551129725755 1.7557e-05 deg
tp 2458642.224510847656
(2019-Jun-07.72451085)
6.1419e-05 TDB
period 1319.149532782801
3.61
1.5365e-05
4.207e-08
d
yr
n .2729031023803381 3.1787e-09 deg/d
Q 2.85580915634595 2.2176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      8149 days (22.31 yr)  
   first obs. used      1998-01-24  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:28  

Additional Information
 Earth MOID = .895207 au 
 Jupiter MOID = 2.44708 au 
 T_jup = 3.507 
[ 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 17.36   n/a E2021B25  

305777 (2009 DO47)          Discovered 2009-Jan-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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