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181458 (2006 TH44)
Classification: Main-belt Asteroid          SPK-ID: 2181458
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1279396150262034 4.0202e-08  
a 2.249792629673225 1.0146e-08 au
q 1.961955026744043 8.9798e-08 au
i 2.503495371727254 4.5566e-06 deg
node 217.7342014571189 7.786e-05 deg
peri 9.903617523983698 7.9149e-05 deg
M 246.3984331359532 1.5825e-05 deg
tp 2459589.450184757433
(2022-Jan-09.95018476)
5.563e-05 TDB
period 1232.571613032837
3.37
8.338e-06
2.283e-08
d
yr
n .2920722789600779 1.9758e-09 deg/d
Q 2.537630232602407 1.1444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      8328 days (22.80 yr)  
   first obs. used      1998-04-22  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:41  

Additional Information
 Earth MOID = .950914 au 
 Jupiter MOID = 2.44271 au 
 T_jup = 3.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457559.5 (2016-Jun-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1279576087037863 4.0232e-08  
q 1.96187252327403 8.9853e-08 au
tp 2457125.226535774475
(2015-Apr-12.72653577)
4.8193e-05 TDB
node 217.7420720090382 7.7841e-05 deg
peri 10.06811286140899 7.913e-05 deg
i 2.50348227488151 4.5578e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      8328 days (22.80 yr)  
   first obs. used      1998-04-22  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:41  

Additional Information
 Jupiter MOID = 2.44271 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.618621147773603E-15 -3.597649837032067E-15 -8.383822986802125E-14 1.248447807304188E-14 -4.27011922534439E-14 -6.201926430677908E-17
q -3.597649837032067E-15 8.073512941410331E-15 3.179432488977588E-13 -2.775057295605799E-14 1.381558989428023E-13 2.430818531252237E-16
tp -8.383822986802125E-14 3.179432488977588E-13 2.322597872188996E-9 -4.256565370355269E-12 6.922239145555141E-10 4.576647276518843E-13
node 1.248447807304188E-14 -2.775057295605799E-14 -4.256565370355269E-12 6.059296858407782E-9 -6.054499754908409E-9 9.652467009835118E-13
peri -4.27011922534439E-14 1.381558989428023E-13 6.922239145555141E-10 -6.054499754908409E-9 6.261499249324581E-9 -8.190191897947037E-13
i -6.201926430677908E-17 2.430818531252237E-16 4.576647276518843E-13 9.652467009835118E-13 -8.190191897947037E-13 2.077375094818868E-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 16.82   n/a MPCxxxxx  
rotation period rot_per 2.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

181458 (2006 TH44)          Discovered 2006-Oct-12 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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