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74146 (1998 QS84)
Classification: Main-belt Asteroid          SPK-ID: 2074146
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2829786958702412 4.4533e-08  
a 2.635739402017388 1.2064e-08 au
q 1.889881303380698 1.2241e-07 au
i 10.71746059289847 4.6139e-06 deg
node 229.107584663239 2.1542e-05 deg
peri 80.35800616873793 2.4453e-05 deg
M 314.4583114457492 7.8643e-06 deg
tp 2458798.223713512191
(2019-Nov-10.72371351)
3.4427e-05 TDB
period 1562.975355636983
4.28
1.0731e-05
2.938e-08
d
yr
n .2303299272772499 1.5814e-09 deg/d
Q 3.381597500654077 1.5478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      9064 days (24.82 yr)  
   first obs. used      1994-11-06  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47653  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:43:22  

Additional Information
 Earth MOID = .910442 au 
 Jupiter MOID = 2.03364 au 
 T_jup = 3.316 
[ 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 15.1   n/a MPO436301  
diameter diameter 5.223 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74146 (1998 QS84)          Discovered 1998-Aug-24 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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