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59857 (1999 RF93)
Classification: Main-belt Asteroid          SPK-ID: 2059857
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028984014377117 4.0492e-08  
a 3.049059834894156 1.681e-08 au
q 2.735316451995614 1.3028e-07 au
i 3.726644526302786 4.0383e-06 deg
node 46.69855417372148 7.1906e-05 deg
peri 357.8287893632009 7.6608e-05 deg
M 286.8563402935732 2.5842e-05 deg
tp 2459395.613194590645
(2021-Jun-30.11319459)		 0.00013988 TDB
period 1944.676416568941
5.32		 1.6082e-05
4.403e-08		 d
yr
n .1851207722440323 1.5309e-09 deg/d
Q 3.362803217792698 1.8539e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1275  
   data-arc span      10863 days (29.74 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:42:10  

Additional Information
 Earth MOID = 1.74441 au 
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068436955461866 4.1817e-08  
q 2.722139111024759 1.3538e-07 au
tp 2457438.061591428579
(2016-Feb-19.56159143)		 0.00012791 TDB
node 46.86859231719931 7.1436e-05 deg
peri 355.5884114914586 7.5625e-05 deg
i 3.742847114324731 4.0583e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1275  
   data-arc span      10863 days (29.74 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:42:10  

Additional Information
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.748632190952477E-15 -5.63402118702474E-15 -2.331676407803156E-12 -7.710122267937772E-15 -4.080796701240767E-13 -9.317860220006325E-16
q -5.63402118702474E-15 1.832759806289577E-14 7.274344099473296E-12 2.378122036934762E-14 1.262485256046917E-12 3.133632426951522E-15
tp -2.331676407803156E-12 7.274344099473296E-12 1.636183846897879E-8 2.944474796936496E-11 3.209412481302848E-9 2.929843564941242E-12
node -7.710122267937772E-15 2.378122036934762E-14 2.944474796936496E-11 5.103053886495128E-9 -5.085833786460914E-9 -1.32629372952402E-10
peri -4.080796701240767E-13 1.262485256046917E-12 3.209412481302848E-9 -5.085833786460914E-9 5.719156837947117E-9 1.328938898891583E-10
i -9.317860220006325E-16 3.133632426951522E-15 2.929843564941242E-12 -1.32629372952402E-10 1.328938898891583E-10 1.64701576285873E-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 14.4   n/a MPO436200  
diameter diameter 8.572 km 1.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.112 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.046   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

59857 (1999 RF93)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RF93 = 2000 YV53 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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