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192685 (1999 TA8)
Classification: Main-belt Asteroid          SPK-ID: 2192685
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2727373053544269 8.0239e-08  
a 2.735368396127165 1.5155e-08 au
q 1.989331390615781 2.2452e-07 au
i 5.011529545631161 6.7166e-06 deg
node 138.4691579846064 6.4885e-05 deg
peri 225.6435797828505 6.5188e-05 deg
M 252.6177107613133 7.797e-06 deg
tp 2459693.392626912189
(2022-Apr-23.89262691)
3.8336e-05 TDB
period 1652.426549539987
4.52
1.3732e-05
3.76e-08
d
yr
n .217861423311202 1.8105e-09 deg/d
Q 3.481405401638549 1.9288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53042  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:17:10  

Additional Information
 Earth MOID = .989251 au 
 Jupiter MOID = 1.98475 au 
 T_jup = 3.292 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457480.5 (2016-Apr-02.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2717157685605213 8.0155e-08  
q 1.993139085134893 2.2405e-07 au
tp 2458041.124856424847
(2017-Oct-14.62485642)
3.1444e-05 TDB
node 138.4746713481829 6.489e-05 deg
peri 225.7594397905602 6.5201e-05 deg
i 5.010153031837038 6.7141e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53042  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:17:10  

Additional Information
 Jupiter MOID = 1.98475 au 
 T_jup = 3.292 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.424765579847585E-15 -1.794052392434707E-14 -8.622729187183734E-13 2.943119839292609E-14 -2.036492243613959E-13 -6.166372579576355E-15
q -1.794052392434707E-14 5.019640638345814E-14 2.478349625388684E-12 -8.28073846556438E-14 5.741980898298289E-13 1.741293565713978E-14
tp -8.622729187183734E-13 2.478349625388684E-12 9.886964157292521E-10 -5.031987262710433E-12 2.42787050474727E-10 1.318330638868352E-12
node 2.943119839292609E-14 -8.28073846556438E-14 -5.031987262710433E-12 4.210746046508072E-9 -4.195136618137124E-9 2.652527183520707E-10
peri -2.036492243613959E-13 5.741980898298289E-13 2.42787050474727E-10 -4.195136618137124E-9 4.251201791138531E-9 -2.639939524153112E-10
i -6.166372579576355E-15 1.741293565713978E-14 1.318330638868352E-12 2.652527183520707E-10 -2.639939524153112E-10 4.507867959833535E-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 15.85   n/a E2021B55  
diameter diameter 4.414 km 1.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192685 (1999 TA8)          Discovered 1999-Oct-07 by Crni Vrh at Crni Vrh
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1999 TA8 = 1990 UE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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