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JPL Small-Body Database Browser
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74900 (1999 TO124)
Classification: Main-belt Asteroid          SPK-ID: 2074900
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056854171792045 5.5831e-08  
a 2.435111948261086 1.437e-08 au
q 2.177756126131047 1.3289e-07 au
i 9.563315033511282 5.5655e-06 deg
node 323.3960165438173 2.7841e-05 deg
peri 246.7428040946206 3.5425e-05 deg
M 206.1647736719978 2.3167e-05 deg
tp 2459193.602996716565
(2020-Dec-10.10299672)
9.0404e-05 TDB
period 1387.959597515784
3.80
1.2286e-05
3.364e-08
d
yr
n .2593735441898596 2.2959e-09 deg/d
Q 2.692467770391124 1.5888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      9784 days (26.79 yr)  
   first obs. used      1993-01-25  
   last obs. used      2019-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57746  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:54  

Additional Information
 Earth MOID = 1.19478 au 
 Jupiter MOID = 2.34172 au 
 T_jup = 3.478 
[ 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 15.2   n/a MPO453162  
diameter diameter 2.302 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74900 (1999 TO124)          Discovered 1999-Oct-04 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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