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74755 (1999 RL199)
Classification: Main-belt Asteroid          SPK-ID: 2074755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2264816395099804 4.4295e-08  
a 2.389817623585483 1.36e-08 au
q 1.848567810065997 1.0827e-07 au
i 4.58796399830745 4.7154e-06 deg
node 289.2269428712248 6.5778e-05 deg
peri 14.95122365119283 6.68e-05 deg
M 151.0319992520622 1.45e-05 deg
tp 2458034.375387219449
(2017-Oct-07.87538722)
5.2058e-05 TDB
period 1349.415101503503
3.69
1.1519e-05
3.154e-08
d
yr
n .2667822522505433 2.2773e-09 deg/d
Q 2.931067437104969 1.668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      595  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1998-04-01  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55603  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:42:42  

Additional Information
 Earth MOID = .832983 au 
 Jupiter MOID = 2.31473 au 
 T_jup = 3.493 
[ 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 15.7   n/a MPO417342  
diameter diameter 3.918 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74755 (1999 RL199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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