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78699 (2002 TN172)
Classification: Main-belt Asteroid          SPK-ID: 2078699
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2788018914081787 3.4417e-08  
a 3.158577413040033 2.1145e-08 au
q 2.27796005612532 1.129e-07 au
i 25.16944532859692 5.4169e-06 deg
node 205.7018113945578 9.1073e-06 deg
peri 249.9411131480206 1.2849e-05 deg
M 9.595950878183039 9.0783e-06 deg
tp 2459145.846090872737
(2020-Oct-23.34609087)
5.1431e-05 TDB
period 2050.386411475693
5.61
2.0589e-05
5.637e-08
d
yr
n .1755766610552704 1.7631e-09 deg/d
Q 4.039194769954747 2.704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      8481 days (23.22 yr)  
   first obs. used      1997-10-29  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:14  

Additional Information
 Earth MOID = 1.41314 au 
 Jupiter MOID = 1.9074 au 
 T_jup = 3.002 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457233.5 (2015-Jul-30.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2771440826416529 3.4542e-08  
q 2.2849786778537 1.1333e-07 au
tp 2457098.615871354850
(2015-Mar-17.11587135)
4.5591e-05 TDB
node 205.7331475173857 9.1102e-06 deg
peri 250.3743301038377 1.2884e-05 deg
i 25.14887604536282 5.4144e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      8481 days (23.22 yr)  
   first obs. used      1997-10-29  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:14  

Additional Information
 Jupiter MOID = 1.9074 au 
 T_jup = 3.002 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.193182846825108E-15 -3.880014295145487E-15 -2.861201454274725E-13 3.384245964990949E-15 -4.48514894305943E-14 -4.484051688652289E-15
q -3.880014295145487E-15 1.284357143951448E-14 9.459198592543428E-13 -1.130722344540537E-14 1.501293394687062E-13 1.445016137903433E-14
tp -2.861201454274725E-13 9.459198592543428E-13 2.078502469631177E-9 -1.021132395631982E-11 4.279959819269073E-10 5.473907187014099E-13
node 3.384245964990949E-15 -1.130722344540537E-14 -1.021132395631982E-11 8.299556926376236E-11 -7.691603890859039E-11 8.560257755194626E-13
peri -4.48514894305943E-14 1.501293394687062E-13 4.279959819269073E-10 -7.691603890859039E-11 1.66001708154821E-10 -6.960056952665236E-13
i -4.484051688652289E-15 1.445016137903433E-14 5.473907187014099E-13 8.560257755194626E-13 -6.960056952665236E-13 2.931569105404394E-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 14.0   n/a MPO412655  
diameter diameter 10.127 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78699 (2002 TN172)          Discovered 2002-Oct-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 TN172 = 1999 GN63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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