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249295 (2008 TS122)
Classification: Main-belt Asteroid          SPK-ID: 2249295
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483901327169694 7.0611e-08  
a 3.09807190917786 3.0218e-08 au
q 2.638348607408242 2.1617e-07 au
i 4.828886220881097 7.6517e-06 deg
node 187.7890639604642 7.2455e-05 deg
peri 197.0400252826328 7.708e-05 deg
M 51.19109671590446 2.2347e-05 deg
tp 2458717.277598491914
(2019-Aug-21.77759849)
0.00012372 TDB
period 1991.753861198941
5.45
2.9141e-05
7.978e-08
d
yr
n .1807452251069302 2.6445e-09 deg/d
Q 3.557795210947477 3.4702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6639 days (18.18 yr)  
   first obs. used      2002-08-17  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:18:55  

Additional Information
 Earth MOID = 1.64253 au 
 Jupiter MOID = 1.89515 au 
 T_jup = 3.200 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457478.5 (2016-Mar-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445821981519942 6.9511e-08  
q 2.656738858049598 2.1081e-07 au
tp 2456715.809349668842
(2014-Feb-27.30934967)
0.00013675 TDB
node 187.8083587606304 7.2492e-05 deg
peri 196.0874000985524 7.7563e-05 deg
i 4.819141788915856 7.6418e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6639 days (18.18 yr)  
   first obs. used      2002-08-17  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:18:55  

Additional Information
 Jupiter MOID = 1.89515 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.831787576256525E-15 -1.454104410479943E-14 1.182287375492505E-12 -2.952919434152715E-16 3.245014286145477E-13 -4.855503602874336E-15
q -1.454104410479943E-14 4.444086842171648E-14 -4.585155550721453E-12 -9.662095539925429E-15 -1.116871251106487E-12 1.392597804617931E-14
tp 1.182287375492505E-12 -4.585155550721453E-12 1.870025330139085E-8 5.531347572394601E-11 3.789855218182859E-9 4.710490120946041E-12
node -2.952919434152715E-16 -9.662095539925429E-15 5.531347572394601E-11 5.255161993582084E-9 -5.226522818458601E-9 1.217526429463243E-10
peri 3.245014286145477E-13 -1.116871251106487E-12 3.789855218182859E-9 -5.226522818458601E-9 6.016030401713076E-9 -1.204171388731983E-10
i -4.855503602874336E-15 1.392597804617931E-14 4.710490120946041E-12 1.217526429463243E-10 -1.204171388731983E-10 5.839657286146908E-11

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 15.9   n/a MPO454847  
diameter diameter 4.272 km 1.651 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249295 (2008 TS122)          Discovered 2008-Oct-07 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 TS122 = 2005 EC294 = 2005 FR13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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