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185678 (1995 TN1)
Classification: Main-belt Asteroid          SPK-ID: 2185678
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02207770185778265 4.0749e-08  
a 2.294564511724215 1.2481e-08 au
q 2.243905800540919 9.3163e-08 au
i 4.081894787255446 5.102e-06 deg
node 1.360292635804189 6.1951e-05 deg
peri 281.7808489418988 0.0001427 deg
M 116.9822472149287 0.00012603 deg
tp 2458587.959781230202
(2019-Apr-14.45978123)
0.00044572 TDB
period 1269.547151750856
3.48
1.0358e-05
2.836e-08
d
yr
n .2835656789143415 2.3136e-09 deg/d
Q 2.345223222907511 1.2756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      8784 days (24.05 yr)  
   first obs. used      1995-10-14  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 20:52:16  

Additional Information
 Earth MOID = 1.23194 au 
 Jupiter MOID = 2.66104 au 
 T_jup = 3.592 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0222827257564316 4.0896e-08  
q 2.243519832476592 9.3819e-08 au
tp 2457325.174060463468
(2015-Oct-29.67406046)
0.00044474 TDB
node 1.420828086103807 6.1898e-05 deg
peri 283.7416433508562 0.00014135 deg
i 4.084037289033991 5.1034e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      8784 days (24.05 yr)  
   first obs. used      1995-10-14  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 20:52:16  

Additional Information
 Jupiter MOID = 2.66104 au 
 T_jup = 3.592 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.672472627832643E-15 -3.803901958488004E-15 2.862989837318406E-12 -1.348775498185215E-15 8.15046856945998E-13 -8.623385729512994E-16
q -3.803901958488004E-15 8.801959381844685E-15 -8.843448049210418E-12 2.757361588404515E-15 -2.523351878351592E-12 1.967411622387931E-15
tp 2.862989837318406E-12 -8.843448049210418E-12 1.977911067814281E-7 -2.007521011679373E-11 5.653339002286829E-8 4.456919934263236E-12
node -1.348775498185215E-15 2.757361588404515E-15 -2.007521011679373E-11 3.831380538457989E-9 -3.826588784430496E-9 -4.132445156723096E-11
peri 8.15046856945998E-13 -2.523351878351592E-12 5.653339002286829E-8 -3.826588784430496E-9 1.998049394005715E-8 4.248243297628869E-11
i -8.623385729512994E-16 1.967411622387931E-15 4.456919934263236E-12 -4.132445156723096E-11 4.248243297628869E-11 2.604504131015932E-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 16.5   n/a MPO440033  

185678 (1995 TN1)          Discovered 1995-Oct-14 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1995 TN1 = 2002 TM7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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