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212731 (2007 RF188)
Classification: Main-belt Asteroid          SPK-ID: 2212731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528655633186737 6.2721e-08  
a 2.404098605467643 1.741e-08 au
q 2.036594717869194 1.4469e-07 au
i 11.74010159463984 7.9888e-06 deg
node 343.7403750245052 2.575e-05 deg
peri 106.4991885386888 3.7911e-05 deg
M 72.19450667615217 2.6636e-05 deg
tp 2458727.458605089634
(2019-Aug-31.95860509)
9.9754e-05 TDB
period 1361.528829453186
3.73
1.479e-05
4.049e-08
d
yr
n .2644086501969866 2.8721e-09 deg/d
Q 2.771602493066093 2.0071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      9541 days (26.12 yr)  
   first obs. used      1994-03-04  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:49:31  

Additional Information
 Earth MOID = 1.08825 au 
 Jupiter MOID = 2.44425 au 
 T_jup = 3.480 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457675.5 (2016-Oct-14.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522062958510337 6.3092e-08  
q 2.039159200686307 1.4577e-07 au
tp 2457366.719825720031
(2015-Dec-10.21982572)
9.6587e-05 TDB
node 343.7791781506966 2.5732e-05 deg
peri 106.7912309668888 3.7942e-05 deg
i 11.74317158679098 7.9899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      9541 days (26.12 yr)  
   first obs. used      1994-03-04  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:49:31  

Additional Information
 Jupiter MOID = 2.44425 au 
 T_jup = 3.480 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.980580725207119E-15 -9.158870405027638E-15 3.578376747346286E-12 2.03284643622476E-14 1.044144220409392E-12 -2.46604182368674E-14
q -9.158870405027638E-15 2.124763950633507E-14 -8.383034394410259E-12 -4.657558921617946E-14 -2.437055819795828E-12 5.654531034053615E-14
tp 3.578376747346286E-12 -8.383034394410259E-12 9.329071755446398E-9 -4.698306592314369E-12 2.712880897717598E-9 -2.235162178315471E-11
node 2.03284643622476E-14 -4.657558921617946E-14 -4.698306592314369E-12 6.621555130128128E-10 -6.486853371840726E-10 -7.577196377955197E-11
peri 1.044144220409392E-12 -2.437055819795828E-12 2.712880897717598E-9 -6.486853371840726E-10 1.439606589153366E-9 6.787997260566502E-11
i -2.46604182368674E-14 5.654531034053615E-14 -2.235162178315471E-11 -7.577196377955197E-11 6.787997260566502E-11 6.383795242625848E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO454527  

212731 (2007 RF188)          Discovered 2007-Sep-09 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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