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74745 (1999 RZ191)
Classification: Main-belt Asteroid          SPK-ID: 2074745
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2699859158246122 4.5645e-08  
a 2.36048193593756 1.3411e-08 au
q 1.723185058676004 1.0897e-07 au
i 13.0929178157349 4.9474e-06 deg
node 91.96826454665126 2.1592e-05 deg
peri 204.2084325748115 2.2841e-05 deg
M 289.0698595704418 8.2718e-06 deg
tp 2459261.492343889124
(2021-Feb-15.99234389)		 3.1106e-05 TDB
period 1324.644829843458
3.63		 1.1289e-05
3.091e-08		 d
yr
n .2717709622152403 2.3162e-09 deg/d
Q 2.997778813199116 1.7032e-08 au
   Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      7535 days (20.63 yr)  
   first obs. used      1999-09-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:13  

Additional Information
 Earth MOID = .715083 au 
 Jupiter MOID = 2.22776 au 
 T_jup = 3.468 
[ 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 15.6   n/a MPO381766  
diameter diameter 5.058 km 0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74745 (1999 RZ191)          Discovered 1999-Sep-11 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RZ191 = 2000 YD114 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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