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74290 (1998 SQ136)
Classification: Main-belt Asteroid          SPK-ID: 2074290
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07788395122693717 5.1178e-08  
a 2.360588928602496 1.1818e-08 au
q 2.176736935620371 1.2307e-07 au
i 7.578300661050901 4.9275e-06 deg
node 53.32441289214127 3.2099e-05 deg
peri 189.6192637564179 4.3539e-05 deg
M 9.539676898536531 2.9556e-05 deg
tp 2458565.395714280623
(2019-Mar-22.89571428)
0.00010873 TDB
period 1324.734893370914
3.63
9.9483e-06
2.724e-08
d
yr
n .271752485573884 2.0408e-09 deg/d
Q 2.54444092158462 1.2739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      7891 days (21.60 yr)  
   first obs. used      1997-06-02  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58808  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:07:29  

Additional Information
 Earth MOID = 1.16425 au 
 Jupiter MOID = 2.45257 au 
 T_jup = 3.536 
[ 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 15.0   n/a MPO337817  
diameter diameter 2.476 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.416   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74290 (1998 SQ136)          Discovered 1998-Sep-26 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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