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390515 (1994 TQ5)
Classification: Main-belt Asteroid          SPK-ID: 2390515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124563034176245 5.9944e-08  
a 2.628971050035652 3.5502e-08 au
q 2.301498439281702 1.606e-07 au
i 11.34927891047369 1.1392e-05 deg
node 17.72870809288425 4.1174e-05 deg
peri 230.5217625741055 7.6502e-05 deg
M 115.2500288615632 5.7069e-05 deg
tp 2458502.056801160359
(2019-Jan-18.55680116)
0.00025012 TDB
period 1556.958842915443
4.26
3.1538e-05
8.635e-08
d
yr
n .2312199848044097 4.6836e-09 deg/d
Q 2.956443660789601 3.9924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      9038 days (24.74 yr)  
   first obs. used      1994-10-04  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68776  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:07:06  

Additional Information
 Earth MOID = 1.30754 au 
 Jupiter MOID = 2.10231 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456988.5 (2014-Nov-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1239016797201865 5.9701e-08  
q 2.303979757776974 1.6013e-07 au
tp 2456946.126905405058
(2014-Oct-15.62690540)
0.00026541 TDB
node 17.77632122218269 4.1145e-05 deg
peri 230.9412883596886 7.6841e-05 deg
i 11.35317850865094 1.1394e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      9038 days (24.74 yr)  
   first obs. used      1994-10-04  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68776  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:07:06  

Additional Information
 Jupiter MOID = 2.10231 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.564224051275188E-15 -9.373439481174432E-15 -4.335060426569605E-12 2.506757731297585E-14 -1.076535984155154E-12 1.640150424417712E-15
q -9.373439481174432E-15 2.564199694116814E-14 7.5347709455331E-12 -5.29433210704757E-14 1.902279522350396E-12 1.567254481114982E-15
tp -4.335060426569605E-12 7.5347709455331E-12 7.044150922791805E-8 -2.557642903476272E-10 1.729029001326134E-8 -7.114147869217946E-11
node 2.506757731297585E-14 -5.29433210704757E-14 -2.557642903476272E-10 1.692875521060716E-9 -1.720671752505109E-9 -2.095415139557561E-10
peri -1.076535984155154E-12 1.902279522350396E-12 1.729029001326134E-8 -1.720671752505109E-9 5.904568546484879E-9 1.888962562183889E-10
i 1.640150424417712E-15 1.567254481114982E-15 -7.114147869217946E-11 -2.095415139557561E-10 1.888962562183889E-10 1.298312659664486E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO476838  
diameter diameter 2.198 km 0.687 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390515 (1994 TQ5)          Discovered 1994-Oct-04 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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