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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028984030190905 4.0609e-08  
a 3.049059835961215 1.6912e-08 au
q 2.735316448131156 1.3051e-07 au
i 3.726645219736172 4.0668e-06 deg
node 46.69856126295472 7.21e-05 deg
peri 357.8287820226681 7.679e-05 deg
M 286.856340213109 2.5842e-05 deg
tp 2459395.613195232715
(2021-Jun-30.11319523)
0.00013988 TDB
period 1944.676417589789
5.32
1.618e-05
4.43e-08
d
yr
n .1851207721468542 1.5402e-09 deg/d
Q 3.362803223791273 1.8653e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1263  
   data-arc span      10838 days (29.67 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:52  

Additional Information
 Earth MOID = 1.74441 au 
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457093.5 (2015-Mar-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068956524827769 4.1937e-08  
q 2.722057869594432 1.3564e-07 au
tp 2457438.051261196318
(2016-Feb-19.55126120)
0.00012785 TDB
node 46.87083986852311 7.163e-05 deg
peri 355.5871224612557 7.5803e-05 deg
i 3.742803968323784 4.0866e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1263  
   data-arc span      10838 days (29.67 yr)  
   first obs. used      1991-02-17  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:52  

Additional Information
 Jupiter MOID = 2.00783 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.758714121665609E-15 -5.66060871612536E-15 -2.332218783326207E-12 -7.953597563708228E-15 -4.091541484807324E-13 -9.710442848900114E-16
q -5.66060871612536E-15 1.839829508362001E-14 7.275954792081792E-12 2.476216350797154E-14 1.264992944970114E-12 3.253772882897435E-15
tp -2.332218783326207E-12 7.275954792081792E-12 1.634636646934051E-8 3.039103823142777E-11 3.205605772039532E-9 3.02354274598478E-12
node -7.953597563708228E-15 2.476216350797154E-14 3.039103823142777E-11 5.130878132686446E-9 -5.113430519515653E-9 -1.300992089231309E-10
peri -4.091541484807324E-13 1.264992944970114E-12 3.205605772039532E-9 -5.113430519515653E-9 5.746141964539826E-9 1.303880906048955E-10
i -9.710442848900114E-16 3.253772882897435E-15 3.02354274598478E-12 -1.300992089231309E-10 1.303880906048955E-10 1.670041592422217E-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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