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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07768952796682815 5.0617e-08  
a 2.359406669480717 1.1708e-08 au
q 2.176105479046973 1.2139e-07 au
i 7.577120882851648 4.9101e-06 deg
node 53.30890351197905 3.2869e-05 deg
peri 189.229322456023 4.4358e-05 deg
M 118.6801666386271 3.0026e-05 deg
tp 2458564.106495573351
(2019-Mar-21.60649557)
0.00010998 TDB
period 1323.73981300479
3.62
9.8532e-06
2.698e-08
d
yr
n .2719567670801008 2.0243e-09 deg/d
Q 2.54270785991446 1.2618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1997-06-02  
   last obs. used      2019-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:47:27  

Additional Information
 Earth MOID = 1.16378 au 
 Jupiter MOID = 2.45306 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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