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JPL Small-Body Database Browser
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74917 (1999 TT143)
Classification: Main-belt Asteroid          SPK-ID: 2074917
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583118996235058 3.909e-08  
a 2.356106763028439 1.3819e-08 au
q 1.983107025657618 9.0815e-08 au
i 5.460312345830702 4.5089e-06 deg
node 237.335815245099 5.0447e-05 deg
peri 28.72049593994086 5.3024e-05 deg
M 233.4662420887246 1.8679e-05 deg
tp 2459064.795827957958
(2020-Aug-03.29582796)
7.0398e-05 TDB
period 1320.963676602942
3.62
1.1622e-05
3.182e-08
d
yr
n .2725283112445562 2.3977e-09 deg/d
Q 2.72910650039926 1.6007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1998-04-01  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56053  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:16:43  

Additional Information
 Earth MOID = .969017 au 
 Jupiter MOID = 2.34681 au 
 T_jup = 3.531 
[ 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 16.0   n/a MPO432302  

74917 (1999 TT143)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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