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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028984438015051 4.69e-08  
a 3.04905985574438 2.0616e-08 au
q 2.735316341530642 1.4405e-07 au
i 3.726650739619455 5.1496e-06 deg
node 46.69856019483414 7.2354e-05 deg
peri 357.8287688613503 7.7466e-05 deg
M 286.8563473368739 2.6141e-05 deg
tp 2459395.613160596409
(2021-Jun-30.11316060)
0.00014117 TDB
period 1944.676436516208
5.32
1.9723e-05
5.4e-08
d
yr
n .18512077034518 1.8775e-09 deg/d
Q 3.362803369958117 2.2737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1991-02-17  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:47  

Additional Information
 Earth MOID = 1.7444 au 
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456394.5 (2013-Apr-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074551444681625 4.8733e-08  
q 2.719528962368305 1.5128e-07 au
tp 2455494.517905243683
(2010-Oct-25.01790524)
0.00013072 TDB
node 46.88591768792107 7.185e-05 deg
peri 355.5262436120514 7.6301e-05 deg
i 3.744116679347552 5.1724e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1991-02-17  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:47  

Additional Information
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.374932007407124E-15 -7.323057601970577E-15 -2.813436341130062E-12 -5.489081299432549E-15 -5.861236828176326E-13 3.52282638177575E-16
q -7.323057601970577E-15 2.288448827512382E-14 8.223609747454369E-12 1.854457300182447E-14 1.74444086147622E-12 -9.631686186732281E-16
tp -2.813436341130062E-12 8.223609747454369E-12 1.708876790540431E-8 2.580810278489463E-11 3.380541902996438E-9 -3.268210162072889E-12
node -5.489081299432549E-15 1.854457300182447E-14 2.580810278489463E-11 5.162386274836837E-9 -5.145597153887589E-9 -1.28625235385185E-10
peri -5.861236828176326E-13 1.74444086147622E-12 3.380541902996438E-9 -5.145597153887589E-9 5.821916223031905E-9 1.277080363162839E-10
i 3.52282638177575E-16 -9.631686186732281E-16 -3.268210162072889E-12 -1.28625235385185E-10 1.277080363162839E-10 2.67539291942776E-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. 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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