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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1529212354615511 9.9555e-08  
a 2.40440299571806 2.3437e-08 au
q 2.0367187190654 2.4469e-07 au
i 11.73902351020295 8.4971e-06 deg
node 343.7469774598286 3.6223e-05 deg
peri 106.5775217171787 4.5861e-05 deg
M 326.3748919812609 2.6682e-05 deg
tp 2458727.695136248025
(2019-Sep-01.19513625)
0.00010146 TDB
period 1361.787418609044
3.73
1.9911e-05
5.451e-08
d
yr
n .2643584417659777 3.8652e-09 deg/d
Q 2.77208727237072 2.7021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      8961 days (24.53 yr)  
   first obs. used      1994-03-04  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57445  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:12:48  

Additional Information
 Earth MOID = 1.08843 au 
 Jupiter MOID = 2.44473 au 
 T_jup = 3.480 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1925-May-17 23:32 00:09 Amphi 0.00218418997287321 0.00216322173595928 0.0022056977164513 2.37771665803302 2.37771555109672 2424288.480790675 8.63724105957058 2019.62338003378 120.682891843995 58.5876623771488 2308.04631722456 T 8 CATAB v2.0e-lin.ifort 2018-Oct-03 12:12:50 2018-Dec-17 22:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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