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59878 (1999 RF117)
Classification: Main-belt Asteroid          SPK-ID: 2059878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1236641620165273 4.4271e-08  
a 2.380158898411561 1.0943e-08 au
q 2.085818542773315 1.0466e-07 au
i 6.171121768386259 4.6386e-06 deg
node 187.9637574142156 3.363e-05 deg
peri 166.1547121354766 3.6912e-05 deg
M 212.269099034528 1.7472e-05 deg
tp 2459550.897179348523
(2021-Dec-02.39717935)
6.7167e-05 TDB
period 1341.242646396494
3.67
9.2494e-06
2.532e-08
d
yr
n .268407808957767 1.851e-09 deg/d
Q 2.674499254049808 1.2296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      10573 days (28.95 yr)  
   first obs. used      1991-05-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55656  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:50:26  

Additional Information
 Earth MOID = 1.08168 au 
 Jupiter MOID = 2.76153 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457001.5 (2014-Dec-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231535921403518 4.424e-08  
q 2.087275421186825 1.0458e-07 au
tp 2456864.823248369544
(2014-Jul-26.32324837)
5.8913e-05 TDB
node 188.0043148252321 3.3672e-05 deg
peri 165.4681481280102 3.6967e-05 deg
i 6.165588872999157 4.6371e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      10573 days (28.95 yr)  
   first obs. used      1991-05-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55656  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:50:26  

Additional Information
 Jupiter MOID = 2.76153 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.957138365844186E-15 -4.607364919931867E-15 4.621855068283922E-13 1.208294206626093E-14 6.995452521297513E-14 6.561464929634117E-16
q -4.607364919931867E-15 1.093782989843912E-14 -9.044872940097178E-13 -2.87687019461263E-14 -1.162768305435619E-13 -1.336736190678895E-15
tp 4.621855068283922E-13 -9.044872940097178E-13 3.47079039967439E-9 3.988585384038925E-12 9.073862665070203E-10 -3.560491897733968E-13
node 1.208294206626093E-14 -2.87687019461263E-14 3.988585384038925E-12 1.133805312502594E-9 -1.1258775981348E-9 -1.762270007828754E-11
peri 6.995452521297513E-14 -1.162768305435619E-13 9.073862665070203E-10 -1.1258775981348E-9 1.366593382959138E-9 1.738926755144223E-11
i 6.561464929634117E-16 -1.336736190678895E-15 -3.560491897733968E-13 -1.762270007828754E-11 1.738926755144223E-11 2.150237461089118E-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 15.7   n/a MPO417239  
diameter diameter 2.009 km 0.382 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.252   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59878 (1999 RF117)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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