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227895 (2007 EY112)
Classification: Main-belt Asteroid          SPK-ID: 2227895
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06960967758349523 4.1132e-08  
a 3.041417297429949 2.7354e-08 au
q 2.829705219958985 1.1714e-07 au
i 10.84750511022577 5.0698e-06 deg
node 205.2566318309543 2.1085e-05 deg
peri 141.9107615795377 4.5205e-05 deg
M 67.29443060450956 3.828e-05 deg
tp 2458838.349519077967
(2019-Dec-20.84951908)
0.00020579 TDB
period 1937.369436976782
5.30
2.6137e-05
7.156e-08
d
yr
n .1858189734642306 2.5069e-09 deg/d
Q 3.253129374900914 2.9259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7290 days (19.96 yr)  
   first obs. used      2001-02-22  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52078  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:34  

Additional Information
 Earth MOID = 1.83185 au 
 Jupiter MOID = 2.07574 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457939.5 (2017-Jul-05.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07209372163009845 4.1504e-08  
q 2.823175751667039 1.187e-07 au
tp 2458829.107639702674
(2019-Dec-11.60763970)
0.00019705 TDB
node 205.3183188712929 2.1033e-05 deg
peri 140.3284579166593 4.3679e-05 deg
i 10.85882270735915 5.0751e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7290 days (19.96 yr)  
   first obs. used      2001-02-22  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52078  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:34  

Additional Information
 Jupiter MOID = 2.07574 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.722546384532656E-15 -4.831285234559417E-15 1.196911479810922E-12 -2.90864531437916E-15 1.646764241905534E-13 -2.076470104748682E-15
q -4.831285234559417E-15 1.408953837601544E-14 -3.199039417573699E-12 8.523034952762522E-15 -4.787950462906367E-13 6.925551215504688E-15
tp 1.196911479810922E-12 -3.199039417573699E-12 3.882891240116158E-8 1.424077943642375E-11 7.542231174668588E-9 -3.680174535800814E-13
node -2.90864531437916E-15 8.523034952762522E-15 1.424077943642375E-11 4.424006971750737E-10 -4.312320912404283E-10 1.655495466247665E-11
peri 1.646764241905534E-13 -4.787950462906367E-13 7.542231174668588E-9 -4.312320912404283E-10 1.907829439191065E-9 -1.635273259126244E-11
i -2.076470104748682E-15 6.925551215504688E-15 -3.680174535800814E-13 1.655495466247665E-11 -1.635273259126244E-11 2.575703818052906E-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 15.84   n/a MPCxxxxx  

227895 (2007 EY112)          Discovered 2007-Mar-11 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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