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39409 (2100 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2039409
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776158363208335 3.2392e-08  
a 2.29427590981653 7.1895e-09 au
q 1.886776175343726 7.4626e-08 au
i 6.020807324585776 4.2321e-06 deg
node 11.30918522999564 3.3596e-05 deg
peri 52.85904826840182 3.5802e-05 deg
M 151.2183260680023 1.1674e-05 deg
tp 2458467.326175810880
(2018-Dec-14.82617581)
4.0541e-05 TDB
period 1269.307640806494
3.48
5.9664e-06
1.634e-08
d
yr
n .2836191861031127 1.3332e-09 deg/d
Q 2.701775644289335 8.4665e-09 au
  Orbit Determination Parameters
   # obs. used (total)      922  
   data-arc span      17932 days (49.10 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:43:02  

Additional Information
 Earth MOID = .906717 au 
 Jupiter MOID = 2.63213 au 
 T_jup = 3.568 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456968.5 (2014-Nov-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766348127813962 3.2301e-08  
q 1.889682713343458 7.4354e-08 au
tp 2457197.762464338397
(2015-Jun-24.26246434)
4.0157e-05 TDB
node 11.32951833954782 3.3594e-05 deg
peri 52.93193178649646 3.5833e-05 deg
i 6.020853414540458 4.2312e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      922  
   data-arc span      17932 days (49.10 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:43:02  

Additional Information
 Jupiter MOID = 2.63213 au 
 T_jup = 3.568 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.043339990293166E-15 -2.393988979373509E-15 -2.430692016191179E-13 1.045116691444936E-14 -1.024534592681461E-13 -1.20507112062584E-15
q -2.393988979373509E-15 5.528477023724075E-15 5.713836538753414E-13 -2.409227864438824E-14 2.372672609033586E-13 2.977988447324551E-15
tp -2.430692016191179E-13 5.713836538753414E-13 1.612559226106195E-9 -1.24826447282965E-11 5.084892882402621E-10 7.666243372900063E-13
node 1.045116691444936E-14 -2.409227864438824E-14 -1.24826447282965E-11 1.128539232997478E-9 -1.125912307796143E-9 -1.612905281262139E-11
peri -1.024534592681461E-13 2.372672609033586E-13 5.084892882402621E-10 -1.125912307796143E-9 1.284001834620718E-9 1.628449854502101E-11
i -1.20507112062584E-15 2.977988447324551E-15 7.666243372900063E-13 -1.612905281262139E-11 1.628449854502101E-11 1.790331010658427E-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 15.7   n/a MPO459137  

39409 (2100 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2100 T-1 = 1999 FY = 2001 XO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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