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JPL Small-Body Database Browser
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172293 (2002 TD178)
Classification: Main-belt Asteroid          SPK-ID: 2172293
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153613487544321 6.7837e-08  
a 2.86074219207706 2.5729e-08 au
q 2.421293606986917 2.0128e-07 au
i 14.3866093874603 7.684e-06 deg
node 315.9589976393545 1.7891e-05 deg
peri 32.89519370829652 2.5408e-05 deg
M 262.0087914874749 1.7215e-05 deg
tp 2459481.562076767944
(2021-Sep-24.06207677)
8.6171e-05 TDB
period 1767.325357706186
4.84
2.3843e-05
6.528e-08
d
yr
n .2036976374668468 2.7481e-09 deg/d
Q 3.300190777167202 2.9682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      6046 days (16.55 yr)  
   first obs. used      2002-09-16  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:09:54  

Additional Information
 Earth MOID = 1.42545 au 
 Jupiter MOID = 2.12765 au 
 T_jup = 3.238 
[ 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 15.1   n/a MPO433106  
diameter diameter 4.715 km 1.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172293 (2002 TD178)          Discovered 2002-Oct-11 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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