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JPL Small-Body Database Browser
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74921 (1999 TA145)
Classification: Main-belt Asteroid          SPK-ID: 2074921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221612971569509 3.8758e-08  
a 2.316616561081853 1.0185e-08 au
q 1.803224280993367 9.2435e-08 au
i 2.31020700700238 4.0811e-06 deg
node 273.3677848661048 0.00012056 deg
peri 353.0101898456451 0.00012103 deg
M 275.2853295117189 1.3004e-05 deg
tp 2458903.565002162286
(2020-Feb-24.06500216)
4.7569e-05 TDB
period 1287.892641847859
3.53
8.4934e-06
2.325e-08
d
yr
n .2795264048433996 1.8434e-09 deg/d
Q 2.830008841170339 1.2442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      13781 days (37.73 yr)  
   first obs. used      1981-07-02  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:15:08  

Additional Information
 Earth MOID = .78692 au 
 Jupiter MOID = 2.26295 au 
 T_jup = 3.546 
[ show covariance matrix ]

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 16.1   n/a MPO432302  

74921 (1999 TA145)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TA145 = 1981 ND1 = 2002 JW112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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