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173855 (2001 TO169)
Classification: Main-belt Asteroid          SPK-ID: 2173855
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1071627747416554 4.9854e-08  
a 3.02413994481897 3.0977e-08 au
q 2.700064717125092 1.5026e-07 au
i 8.930145906851065 5.5219e-06 deg
node 273.471609468178 3.6384e-05 deg
peri 128.5146535667962 4.5789e-05 deg
M 230.2935141891238 3.0663e-05 deg
tp 2459892.586608693130
(2022-Nov-09.08660869)		 0.00016935 TDB
period 1920.884507601352
5.26		 2.9514e-05
8.08e-08		 d
yr
n .187413662078799 2.8796e-09 deg/d
Q 3.348215172512848 3.4296e-08 au
   Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      7293 days (19.97 yr)  
   first obs. used      2000-07-05  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:58:50  

Additional Information
 Earth MOID = 1.71959 au 
 Jupiter MOID = 2.03011 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457511.5 (2016-May-03.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1078808384620239 4.9769e-08  
q 2.697643810018986 1.4979e-07 au
tp 2457976.382659074165
(2017-Aug-10.88265907)		 0.00015403 TDB
node 273.4828948173167 3.6387e-05 deg
peri 129.2701172565448 4.5697e-05 deg
i 8.930201958179413 5.5219e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      7293 days (19.97 yr)  
   first obs. used      2000-07-05  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:58:50  

Additional Information
 Jupiter MOID = 2.03011 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.47698202429278E-15 -7.325936233789519E-15 -2.817852340508024E-13 9.403267906081182E-15 -5.843838167553369E-14 1.403048041277989E-16
q -7.325936233789519E-15 2.243573728368502E-14 2.576614588832655E-12 -2.780403888480745E-14 4.505240760852181E-13 3.328674090378924E-16
tp -2.817852340508024E-13 2.576614588832655E-12 2.372474205017318E-8 -7.732970183979382E-12 4.296251285243893E-9 3.701127531258425E-12
node 9.403267906081182E-15 -2.780403888480745E-14 -7.732970183979382E-12 1.32404982603277E-9 -1.309284095712807E-9 3.830096902189855E-12
peri -5.843838167553369E-14 4.505240760852181E-13 4.296251285243893E-9 -1.309284095712807E-9 2.088252510948468E-9 -3.18569976447612E-12
i 1.403048041277989E-16 3.328674090378924E-16 3.701127531258425E-12 3.830096902189855E-12 -3.18569976447612E-12 3.049146450933158E-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 15.52   n/a E2021B55  

173855 (2001 TO169)          Discovered 2001-Oct-15 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 TO169 = 2000 NK8 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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