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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028984332824948 4.552e-08  
a 3.049059850818745 1.9839e-08 au
q 2.735316369184939 1.4101e-07 au
i 3.726649568587145 4.98e-06 deg
node 46.6985632564347 7.2307e-05 deg
peri 357.8287692014815 7.7322e-05 deg
M 286.8563456858084 2.6064e-05 deg
tp 2459395.613168557831
(2021-Jun-30.11316856)
0.00014084 TDB
period 1944.676431803887
5.32
1.8979e-05
5.196e-08
d
yr
n .1851207707937629 1.8067e-09 deg/d
Q 3.362803332452552 2.188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      10757 days (29.45 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:24:06  

Additional Information
 Earth MOID = 1.74441 au 
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
[ show covariance matrix ]

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. 2019-August); 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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