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JPL Small-Body Database Browser
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74935 (1999 TC172)
Classification: Main-belt Asteroid          SPK-ID: 2074935
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 .1484831195851895 4.0861e-08  
a 2.401113476352168 1.0917e-08 au
q 2.044588656905359 9.6632e-08 au
i 2.360245462234929 4.2119e-06 deg
node 187.1816600689515 9.8536e-05 deg
peri 238.4022057202969 0.00010017 deg
M 64.34998814798026 1.4951e-05 deg
tp 2458357.579914543797
(2018-Aug-27.07991454)
5.6387e-05 TDB
period 1358.993735369909
3.72
9.2679e-06
2.537e-08
d
yr
n .264901883379183 1.8066e-09 deg/d
Q 2.757638295798977 1.2538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      9581 days (26.23 yr)  
   first obs. used      1992-12-26  
   last obs. used      2019-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:46:09  

Additional Information
 Earth MOID = 1.05901 au 
 Jupiter MOID = 2.53226 au 
 T_jup = 3.509 
[ 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 16.2   n/a MPO432302  
diameter diameter 4.288 km 1.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.032   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

74935 (1999 TC172)          Discovered 1999-Oct-10 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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