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249298 (2008 TR170)
Classification: Main-belt Asteroid          SPK-ID: 2249298
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1169734506978991 4.9136e-08  
a 3.126851347945253 4.1113e-08 au
q 2.76109275595672 1.5977e-07 au
i 15.78119824344382 7.8044e-06 deg
node 51.47932986570031 1.8882e-05 deg
peri 97.16350654997142 4.608e-05 deg
M 312.2539202628151 3.8352e-05 deg
tp 2459268.351755961804
(2021-Feb-22.85175596)
0.00021598 TDB
period 2019.57171514444
5.53
3.9831e-05
1.091e-07
d
yr
n .1782556159310504 3.5157e-09 deg/d
Q 3.492609939933786 4.5922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6320 days (17.30 yr)  
   first obs. used      2002-10-05  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48323  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:41  

Additional Information
 Earth MOID = 1.82694 au 
 Jupiter MOID = 1.69843 au 
 T_jup = 3.146 
[ 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 15.5   n/a MPO413152  
diameter diameter 2.745 km 0.496 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249298 (2008 TR170)          Discovered 2008-Oct-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 TR170 = 2002 TO344 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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