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JPL Small-Body Database Browser
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74937 (1999 TO172)
Classification: Main-belt Asteroid          SPK-ID: 2074937
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1171224706901564 6.2914e-08  
a 2.29060593205748 1.3579e-08 au
q 2.022324505917379 1.4344e-07 au
i 5.30866853717532 4.0776e-06 deg
node 273.9797027221974 6.9148e-05 deg
peri 284.7993779314577 7.2044e-05 deg
M 57.28452470865239 1.8514e-05 deg
tp 2458399.007534119135
(2018-Oct-07.50753412)
6.5048e-05 TDB
period 1266.263237515438
3.47
1.126e-05
3.083e-08
d
yr
n .2843010752695969 2.528e-09 deg/d
Q 2.55888735819758 1.5169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      7259 days (19.87 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55413  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:44:13  

Additional Information
 Earth MOID = 1.02775 au 
 Jupiter MOID = 2.43108 au 
 T_jup = 3.584 
[ 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 MPO436307  

74937 (1999 TO172)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TO172 = 2001 FS118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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