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227868 (2007 DQ112)
Classification: Main-belt Asteroid          SPK-ID: 2227868
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1189867703541422 6.0049e-08  
a 2.583743445015716 2.2755e-08 au
q 2.276312157069611 1.6695e-07 au
i 2.555425030355655 4.564e-06 deg
node 101.4476212559132 0.00014825 deg
peri 319.6133446572713 0.00015139 deg
M 232.8708901205947 3.5248e-05 deg
tp 2459736.191819116898
(2022-Jun-05.69181912)
0.00015362 TDB
period 1516.954339293495
4.15
2.004e-05
5.487e-08
d
yr
n .2373176243179911 3.1351e-09 deg/d
Q 2.891174732961821 2.5463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1998-01-23  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:28  

Additional Information
 Earth MOID = 1.28919 au 
 Jupiter MOID = 2.39583 au 
 T_jup = 3.412 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457314.5 (2015-Oct-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1202900163991171 5.9596e-08  
q 2.270975965177182 1.6536e-07 au
tp 2456707.421083030707
(2014-Feb-18.92108303)
0.0001269 TDB
node 101.4523907256502 0.00014829 deg
peri 320.1380414497152 0.00015139 deg
i 2.555707869423976 4.5651e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1998-01-23  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:28  

Additional Information
 Jupiter MOID = 2.39583 au 
 T_jup = 3.412 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.55167915680772E-15 -9.803878026763836E-15 -4.512385773475354E-12 -1.56572195457025E-14 -1.138157798742959E-12 -1.730415095682746E-15
q -9.803878026763836E-15 2.734478656230844E-14 1.301845202491051E-11 4.523774651380542E-14 3.294430296546131E-12 5.086570536305579E-15
tp -4.512385773475354E-12 1.301845202491051E-11 1.61038123740397E-8 6.058055673215082E-11 3.917953034155193E-9 3.303815112922001E-12
node -1.56572195457025E-14 4.523774651380542E-14 6.058055673215082E-11 2.199130301387977E-8 -2.195467624558203E-8 -7.656829106107124E-12
peri -1.138157798742959E-12 3.294430296546131E-12 3.917953034155193E-9 -2.195467624558203E-8 2.291761831679312E-8 8.503331562668026E-12
i -1.730415095682746E-15 5.086570536305579E-15 3.303815112922001E-12 -7.656829106107124E-12 8.503331562668026E-12 2.083985550492127E-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 16.90   n/a E2021B55  

227868 (2007 DQ112)          Discovered 2007-Feb-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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