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78836 (2003 QT39)
Classification: Main-belt Asteroid          SPK-ID: 2078836
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2238061548642721 4.1029e-08  
a 2.427950714183706 1.0071e-08 au
q 1.884560400642288 9.8614e-08 au
i 1.02128955825176 4.5439e-06 deg
node 243.3759246429766 0.00023315 deg
peri 34.41591841191784 0.00023331 deg
M 196.2096926091371 8.4332e-06 deg
tp 2459629.200671146841
(2022-Feb-18.70067115)
3.3749e-05 TDB
period 1381.841485117627
3.78
8.598e-06
2.354e-08
d
yr
n .2605219222878922 1.621e-09 deg/d
Q 2.971341027725124 1.2325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      15975 days (43.74 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:31:35  

Additional Information
 Earth MOID = .868234 au 
 Jupiter MOID = 2.16488 au 
 T_jup = 3.474 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456916.5 (2014-Sep-16.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242307407252244 4.0915e-08  
q 1.88316889088792 9.8338e-08 au
tp 2456866.743305097520
(2014-Jul-28.24330510)
3.1085e-05 TDB
node 243.4561013290662 0.00023344 deg
peri 34.4753577950822 0.00023359 deg
i 1.020210542137247 4.5436e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      15975 days (43.74 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:31:35  

Additional Information
 Jupiter MOID = 2.16488 au 
 T_jup = 3.474 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.674015942885642E-15 -4.011128634107247E-15 -1.833878646176509E-14 7.081366366537629E-15 -3.730587755845993E-14 -5.065352853176198E-16
q -4.011128634107247E-15 9.670441848720778E-15 1.482241585438146E-14 -1.538186967469968E-14 7.950910699297431E-14 1.2288703560458E-15
tp -1.833878646176509E-14 1.482241585438146E-14 9.662982199709393E-10 -8.687512284824518E-13 2.833948363454417E-10 -2.603084977918482E-13
node 7.081366366537629E-15 -1.538186967469968E-14 -8.687512284824518E-13 5.449192943207562E-8 -5.44829874364759E-8 2.445241991005097E-10
peri -3.730587755845993E-14 7.950910699297431E-14 2.833948363454417E-10 -5.44829874364759E-8 5.456646691804905E-8 -2.445483803544787E-10
i -5.065352853176198E-16 1.2288703560458E-15 -2.603084977918482E-13 2.445241991005097E-10 -2.445483803544787E-10 2.064393283882362E-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 16.2   n/a MPO449495  
diameter diameter 1.369 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.312   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78836 (2003 QT39)          Discovered 2003-Aug-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 QT39 = 1976 JW4 = 1999 NG23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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