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74866 (1999 TA93)
Classification: Main-belt Asteroid          SPK-ID: 2074866
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358045221074628 4.2008e-08  
a 2.272257790026235 9.9941e-09 au
q 1.963674906746763 9.8048e-08 au
i 6.7657970755726 3.6075e-06 deg
node 65.90576735170825 3.6438e-05 deg
peri 278.4357716432344 3.8863e-05 deg
M 30.11236204223439 1.3023e-05 deg
tp 2458895.852911246048
(2020-Feb-16.35291125)
4.5173e-05 TDB
period 1251.079270984595
3.43
8.254e-06
2.26e-08
d
yr
n .2877515504806351 1.8984e-09 deg/d
Q 2.580840673305708 1.1351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:23:12  

Additional Information
 Earth MOID = .970195 au 
 Jupiter MOID = 2.81222 au 
 T_jup = 3.590 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456712.5 (2014-Feb-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355586593547608 4.1853e-08  
q 1.965027192006008 9.7646e-08 au
tp 2456393.220763246287
(2013-Apr-10.72076325)
4.664e-05 TDB
node 65.9819051261055 3.6393e-05 deg
peri 278.4689939690808 3.8854e-05 deg
i 6.769543365592552 3.6092e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:23:12  

Additional Information
 Jupiter MOID = 2.81222 au 
 T_jup = 3.590 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.751652465086859E-15 -4.071659463926849E-15 1.43725440416288E-13 -1.107835853919577E-15 -1.31838994960255E-15 -4.18311565588915E-15
q -4.071659463926849E-15 9.534670734471484E-15 -4.262472211249013E-13 4.060497999204192E-15 -2.117065138968373E-14 9.909894815253689E-15
tp 1.43725440416288E-13 -4.262472211249013E-13 2.175328826704535E-9 -4.995969435158812E-13 6.511111565443783E-10 -3.09965135843817E-13
node -1.107835853919577E-15 4.060497999204192E-15 -4.995969435158812E-13 1.32445512284323E-9 -1.314928871687197E-9 -1.211683301422099E-11
peri -1.31838994960255E-15 -2.117065138968373E-14 6.511111565443783E-10 -1.314928871687197E-9 1.509618626565133E-9 1.206801665493873E-11
i -4.18311565588915E-15 9.909894815253689E-15 -3.09965135843817E-13 -1.211683301422099E-11 1.206801665493873E-11 1.302627196824362E-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 MPO436307  

74866 (1999 TA93)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TA93 = 1998 HE35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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