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39415 Janeausten (4231 T-1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2039415
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037173191984722 4.8095e-08  
a 3.937093145719454 5.0774e-08 au
q 3.135039084638807 2.0596e-07 au
i 2.382744969534213 5.4213e-06 deg
node 123.4284743824075 0.00013101 deg
peri 162.7492591786715 0.00013197 deg
M 38.20997278261307 2.131e-05 deg
tp 2458697.643995205057
(2019-Aug-02.14399520)
0.00016525 TDB
period 2853.395430205364
7.81
5.5198e-05
1.511e-07
d
yr
n .1261654785695406 2.4406e-09 deg/d
Q 4.739147206800101 6.1118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      17277 days (47.30 yr)  
   first obs. used      1971-03-24  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59076  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:33:00  

Additional Information
 Earth MOID = 2.11874 au 
 Jupiter MOID = .453848 au 
 T_jup = 3.023 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456311.5 (2013-Jan-19.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2092156884590098 4.7303e-08  
q 3.10327354710462 2.0246e-07 au
tp 2455864.906771413914
(2011-Oct-30.40677141)
0.00014216 TDB
node 123.6554727667031 0.00013156 deg
peri 164.3725894627317 0.00013253 deg
i 2.380790621197379 5.4209e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      17277 days (47.30 yr)  
   first obs. used      1971-03-24  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59076  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:33:00  

Additional Information
 Jupiter MOID = .453848 au 
 T_jup = 3.023 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.237538560371978E-15 -9.419508371968889E-15 -2.798517185440796E-13 3.472244095994608E-15 -1.262159361501708E-14 6.184951255859686E-17
q -9.419508371968889E-15 4.099021928511243E-14 2.516060608225382E-12 -1.605268521908531E-14 2.30734061487619E-13 3.475018866512331E-16
tp -2.798517185440796E-13 2.516060608225382E-12 2.020889565145203E-8 -2.235557952400055E-11 2.340527803935149E-9 1.989755236362133E-12
node 3.472244095994608E-15 -1.605268521908531E-14 -2.235557952400055E-11 1.730908860921946E-8 -1.729646783772224E-8 1.230566043688232E-10
peri -1.262159361501708E-14 2.30734061487619E-13 2.340527803935149E-9 -1.729646783772224E-8 1.756509300338489E-8 -1.227119321676204E-10
i 6.184951255859686E-17 3.475018866512331E-16 1.989755236362133E-12 1.230566043688232E-10 -1.227119321676204E-10 2.938603374418349E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO365715  
diameter diameter 9.036 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.117   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

39415 Janeausten           Discovered 1971 Mar. 26 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Jane Austen (1775-1817) was one of the greatest English novelists. Her novel Pride and Prejudice has been made into a motion picture several times.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

[ show close-approach data ]
Alternate Designations
 4231 T-1 = 2001 DR90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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