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227859 (2007 DW76)
Classification: Main-belt Asteroid          SPK-ID: 2227859
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06762081078150942 4.9592e-08  
a 2.368742030179468 1.4041e-08 au
q 2.208565773566494 1.2363e-07 au
i 8.723973956981876 3.7246e-06 deg
node 143.7574239786479 3.8598e-05 deg
peri 317.9546475910177 5.5913e-05 deg
M 25.34980412981889 3.8488e-05 deg
tp 2459302.733612753073
(2021-Mar-29.23361275)
0.00014252 TDB
period 1331.603953861985
3.65
1.184e-05
3.242e-08
d
yr
n .2703506541535189 2.4039e-09 deg/d
Q 2.528918286792443 1.4991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      10113 days (27.69 yr)  
   first obs. used      1993-05-24  
   last obs. used      2021-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:26  

Additional Information
 Earth MOID = 1.23333 au 
 Jupiter MOID = 2.54364 au 
 T_jup = 3.527 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457893.5 (2017-May-20.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06662185839786482 4.9629e-08  
q 2.210721753490598 1.2353e-07 au
tp 2457968.116543684547
(2017-Aug-02.61654368)
0.00014766 TDB
node 143.8369504791737 3.8634e-05 deg
peri 317.0780059774482 5.6408e-05 deg
i 8.719783444242474 3.722e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      10113 days (27.69 yr)  
   first obs. used      1993-05-24  
   last obs. used      2021-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:26  

Additional Information
 Jupiter MOID = 2.54364 au 
 T_jup = 3.527 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.463002231503738E-15 -6.102159677120877E-15 -2.269317048158369E-12 2.661798224987642E-15 -6.216726990115514E-13 -4.746553506536363E-15
q -6.102159677120877E-15 1.525852188450556E-14 4.86006004484797E-12 -5.405816246819729E-15 1.323091500502633E-12 1.200017449118519E-14
tp -2.269317048158369E-12 4.86006004484797E-12 2.180494846085406E-8 -5.975702982602379E-12 6.113109998242758E-9 7.385930958744483E-12
node 2.661798224987642E-15 -5.405816246819729E-15 -5.975702982602379E-12 1.492549402876688E-9 -1.476739532954741E-9 -2.30741641457919E-11
peri -6.216726990115514E-13 1.323091500502633E-12 6.113109998242758E-9 -1.476739532954741E-9 3.181813825442324E-9 2.478677227849052E-11
i -4.746553506536363E-15 1.200017449118519E-14 7.385930958744483E-12 -2.30741641457919E-11 2.478677227849052E-11 1.385296407934605E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.64   n/a MPCxxxxx  

227859 (2007 DW76)          Discovered 2007-Feb-22 by LONEOS at Anderson Mesa
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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