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249942 (2001 TB168)
Classification: Main-belt Asteroid          SPK-ID: 2249942
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708413062802896 5.1843e-08  
a 2.761645901292656 1.7028e-08 au
q 2.289842708032211 1.4675e-07 au
i 24.60189547483177 4.8822e-06 deg
node 244.936152144644 1.417e-05 deg
peri 213.5058876595883 2.6371e-05 deg
M 340.7427888845416 2.175e-05 deg
tp 2459090.168789388665
(2020-Aug-28.66878939)
0.00010167 TDB
period 1676.294868783288
4.59
1.5504e-05
4.245e-08
d
yr
n .2147593521307503 1.9863e-09 deg/d
Q 3.233449094553101 1.9937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      6675 days (18.28 yr)  
   first obs. used      2001-10-15  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:20  

Additional Information
 Earth MOID = 1.33216 au 
 Jupiter MOID = 2.13753 au 
 T_jup = 3.189 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457845.5 (2017-Apr-02.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694324510068577 5.2129e-08  
q 2.295473958841999 1.4784e-07 au
tp 2457414.835335304850
(2016-Jan-27.33533530)
9.6781e-05 TDB
node 244.9421615004054 1.4178e-05 deg
peri 213.7943733673037 2.6549e-05 deg
i 24.58327986764683 4.8829e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      6675 days (18.28 yr)  
   first obs. used      2001-10-15  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:20  

Additional Information
 Jupiter MOID = 2.13753 au 
 T_jup = 3.189 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.717455560067094E-15 -7.673429676719407E-15 3.269026199202537E-13 4.574663508393741E-14 2.597216287101405E-13 -1.095110513703279E-14
q -7.673429676719407E-15 2.185594009892443E-14 -4.914420627640488E-13 -1.267194528166476E-13 -6.257844013762762E-13 3.446045419157606E-14
tp 3.269026199202537E-13 -4.914420627640488E-13 9.366624534750724E-9 9.732978589851153E-12 2.202697419021478E-9 6.079990506359079E-11
node 4.574663508393741E-14 -1.267194528166476E-13 9.732978589851153E-12 2.010205327785583E-10 -1.762018643370494E-10 -3.922950208386639E-11
peri 2.597216287101405E-13 -6.257844013762762E-13 2.202697419021478E-9 -1.762018643370494E-10 7.048378007409161E-10 4.89290938708062E-11
i -1.095110513703279E-14 3.446045419157606E-14 6.079990506359079E-11 -3.922950208386639E-11 4.89290938708062E-11 2.384296817027798E-11

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 MPO503177  
diameter diameter 2.971 km 1.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249942 (2001 TB168)          Discovered 2001-Oct-15 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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