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74100 (1998 QE26)
Classification: Main-belt Asteroid          SPK-ID: 2074100
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122822782460701 6.3444e-08  
a 2.747194968265671 1.8055e-08 au
q 2.409776838301244 1.8018e-07 au
i 11.54237415462004 6.9809e-06 deg
node 342.7761959694757 2.1634e-05 deg
peri 7.575182299853463 2.7946e-05 deg
M 276.2913428922243 1.9572e-05 deg
tp 2459387.223465158991
(2021-Jun-21.72346516)
9.229e-05 TDB
period 1663.154711441483
4.55
1.6396e-05
4.489e-08
d
yr
n .2164561105009781 2.1339e-09 deg/d
Q 3.084613098230097 2.0272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      7552 days (20.68 yr)  
   first obs. used      1998-08-23  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:36:05  

Additional Information
 Earth MOID = 1.40383 au 
 Jupiter MOID = 2.33253 au 
 T_jup = 3.307 
[ 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 14.6   n/a MPO432293  
diameter diameter 7.491 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74100 (1998 QE26)          Discovered 1998-Aug-25 by Visnjan at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QE26 = 1999 XR204 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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