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100975 (1998 QB25)
Classification: Main-belt Asteroid          SPK-ID: 2100975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898008936308338 4.185e-08  
a 2.328852983436168 8.7088e-09 au
q 1.88683460604515 9.8508e-08 au
i 3.17849786162017 5.0447e-06 deg
node 148.7714095054862 8.8149e-05 deg
peri 174.5534037086138 8.9159e-05 deg
M 106.6326730073728 1.4538e-05 deg
tp 2458815.997354903100
(2019-Nov-28.49735490)
5.1616e-05 TDB
period 1298.110122638616
3.55
7.2815e-06
1.994e-08
d
yr
n .2773262404488786 1.5556e-09 deg/d
Q 2.770871360827186 1.0362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      430  
   data-arc span      10702 days (29.30 yr)  
   first obs. used      1991-10-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:37  

Additional Information
 Earth MOID = .87261 au 
 Jupiter MOID = 2.55128 au 
 T_jup = 3.546 
[ 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 16.6   n/a MPO337988  
diameter diameter 3.359 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100975 (1998 QB25)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QB25 = 2002 WR9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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