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74822 (1999 TA15)
Classification: Main-belt Asteroid          SPK-ID: 2074822
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437664929154963 6.932e-08  
a 2.309025368413773 1.0356e-08 au
q 1.977064889144013 1.6083e-07 au
i 6.604965834350043 6.623e-06 deg
node 173.3014207571433 4.2246e-05 deg
peri 197.3281263012997 4.4405e-05 deg
M 327.74701930639 1.6346e-05 deg
tp 2459115.317699033488
(2020-Sep-22.81769903)
5.8639e-05 TDB
period 1281.567494326034
3.51
8.6222e-06
2.361e-08
d
yr
n .2809060011227275 1.8899e-09 deg/d
Q 2.640985847683533 1.1845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      10617 days (29.07 yr)  
   first obs. used      1991-05-08  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Earth MOID = .977324 au 
 Jupiter MOID = 2.82138 au 
 T_jup = 3.563 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456461.5 (2013-Jun-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435680260400286 6.9267e-08  
q 1.977372934992903 1.6071e-07 au
tp 2456552.506291116535
(2013-Sep-17.00629112)
5.113e-05 TDB
node 173.4192968230255 4.23e-05 deg
peri 197.3334481781495 4.4474e-05 deg
i 6.599788091670908 6.6216e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      10617 days (29.07 yr)  
   first obs. used      1991-05-08  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Jupiter MOID = 2.82138 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.797943494351356E-15 -1.111568477368383E-14 1.115641905663232E-12 4.370561465428782E-14 2.460858451666488E-13 4.570426453719981E-15
q -1.111568477368383E-14 2.582865953440068E-14 -2.426989988444259E-12 -1.029522838825196E-13 -5.306019583921576E-13 -1.050366635109149E-14
tp 1.115641905663232E-12 -2.426989988444259E-12 2.61425901861955E-9 1.013386834874011E-12 7.250660407977396E-10 5.358453288144121E-13
node 4.370561465428782E-14 -1.029522838825196E-13 1.013386834874011E-12 1.789331147195137E-9 -1.77678482209119E-9 1.52642416553657E-10
peri 2.460858451666488E-13 -5.306019583921576E-13 7.250660407977396E-10 -1.77678482209119E-9 1.977907388638263E-9 -1.515249143607635E-10
i 4.570426453719981E-15 -1.050366635109149E-14 5.358453288144121E-13 1.52642416553657E-10 -1.515249143607635E-10 4.384520283801177E-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 15.6   n/a MPO474634  
rotation period rot_per 2.412 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

74822 (1999 TA15)          Discovered 1999-Oct-12 by Juels, C. W. at Fountain Hills
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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