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74636 (1999 RK52)
Classification: Main-belt Asteroid          SPK-ID: 2074636
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 .2073728070079497 4.4126e-08  
a 2.369143886622949 1.2596e-08 au
q 1.877847868648225 1.0459e-07 au
i 3.023765156984145 4.5995e-06 deg
node 57.65984815485744 8.3427e-05 deg
peri 270.3153205711658 8.4623e-05 deg
M 248.708537719621 1.9501e-05 deg
tp 2459412.260735995524
(2021-Jul-16.76073600)
7.4495e-05 TDB
period 1331.942827608283
3.65
1.0622e-05
2.908e-08
d
yr
n .2702818713671351 2.1555e-09 deg/d
Q 2.860439904597674 1.5208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      1999-09-03  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:56  

Additional Information
 Earth MOID = .869514 au 
 Jupiter MOID = 2.49047 au 
 T_jup = 3.515 
[ 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 15.9   n/a MPO459337  
diameter diameter 1.632 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.241   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74636 (1999 RK52)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RK52 = 2002 GK164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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