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74698 (1999 RZ142)
Classification: Main-belt Asteroid          SPK-ID: 2074698
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604875425449482 4.9336e-08  
a 2.353692211349234 9.5293e-09 au
q 1.975953932442611 1.1402e-07 au
i 4.630559520096088 5.693e-06 deg
node 174.6289982266494 4.6092e-05 deg
peri 138.3035888789721 4.8295e-05 deg
M 189.2312520616312 1.5436e-05 deg
tp 2459226.146220909377
(2021-Jan-11.64622091)
5.7842e-05 TDB
period 1318.933600243195
3.61
8.0098e-06
2.193e-08
d
yr
n .2729477813997766 1.6576e-09 deg/d
Q 2.731430490255857 1.1059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      891  
   data-arc span      7144 days (19.56 yr)  
   first obs. used      1999-09-03  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54558  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:22:07  

Additional Information
 Earth MOID = .96416 au 
 Jupiter MOID = 2.5422 au 
 T_jup = 3.534 
[ 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 MPO436305  
diameter diameter 1.735 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74698 (1999 RZ142)          Discovered 1999-Sep-09 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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