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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026971860286801 4.0337e-08  
a 3.047181513998277 1.6517e-08 au
q 2.73424454719204 1.2989e-07 au
i 3.727059110408875 4.0253e-06 deg
node 46.6791596821096 7.1528e-05 deg
peri 358.1617912450977 7.6298e-05 deg
M 323.5939028144429 2.5963e-05 deg
tp 2459396.979632732123
(2021-Jul-01.47963273)
0.00014027 TDB
period 1942.879716632336
5.32
1.5797e-05
4.325e-08
d
yr
n .18529196476661 1.5065e-09 deg/d
Q 3.360118480804513 1.8213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      10905 days (29.86 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53232  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:40:54  

Additional Information
 Earth MOID = 1.74246 au 
 Jupiter MOID = 2.00944 au 
 T_jup = 3.227 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457254.5 (2015-Aug-20.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068056417429633 4.1785e-08  
q 2.722207618012636 1.3533e-07 au
tp 2457438.030934629985
(2016-Feb-19.53093463)
0.00012787 TDB
node 46.86711979888733 7.1054e-05 deg
peri 355.5810314715761 7.5275e-05 deg
i 3.742910577220268 4.0443e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      10905 days (29.86 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53232  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:40:54  

Additional Information
 Jupiter MOID = 2.00944 au 
 T_jup = 3.227 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.746000010736118E-15 -5.628239260709323E-15 -2.338557035409501E-12 -6.734807354667715E-15 -4.098109549200124E-13 -8.821252023249613E-16
q -5.628239260709323E-15 1.831413355893712E-14 7.28800527671407E-12 2.037247964825932E-14 1.2673190207542E-12 2.975889830815226E-15
tp -2.338557035409501E-12 7.28800527671407E-12 1.63503686286665E-8 2.593447719375966E-11 3.212232548111782E-9 2.786375388976246E-12
node -6.734807354667715E-15 2.037247964825932E-14 2.593447719375966E-11 5.048631375708178E-9 -5.032173405994134E-9 -1.35050896246239E-10
peri -4.098109549200124E-13 1.2673190207542E-12 3.212232548111782E-9 -5.032173405994134E-9 5.666295869713129E-9 1.352826028631087E-10
i -8.821252023249613E-16 2.975889830815226E-15 2.786375388976246E-12 -1.35050896246239E-10 1.352826028631087E-10 1.635645366721022E-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 14.46   n/a E2021B10  
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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