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100996 (1998 QB41)
Classification: Main-belt Asteroid          SPK-ID: 2100996
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397680932518442 5.0389e-08  
a 2.513394008801487 9.9643e-09 au
q 2.162101720600694 1.2585e-07 au
i 3.818185462284849 5.0514e-06 deg
node 182.8503768770373 4.7344e-05 deg
peri 178.6248537539776 4.8951e-05 deg
M 149.9406457687961 1.2218e-05 deg
tp 2458394.313631090045
(2018-Oct-02.81363109)
4.8123e-05 TDB
period 1455.423188880241
3.98
8.655e-06
2.37e-08
d
yr
n .2473507380880562 1.4709e-09 deg/d
Q 2.86468629700228 1.1357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      9384 days (25.69 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56417  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:57:56  

Additional Information
 Earth MOID = 1.15914 au 
 Jupiter MOID = 2.58859 au 
 T_jup = 3.444 
[ 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 15.8   n/a MPO453463  
diameter diameter 1.732 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100996 (1998 QB41)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QB41 = 1994 PD33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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