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46858 (1998 QB50)
Classification: Main-belt Asteroid          SPK-ID: 2046858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089828158941012 3.11e-08  
a 2.416746162874791 9.9386e-09 au
q 2.153362360743432 7.5878e-08 au
i 8.103564230374209 5.0317e-06 deg
node 10.60805362755172 2.3579e-05 deg
peri 257.2588383466974 3.3151e-05 deg
M 88.91299958154794 2.3455e-05 deg
tp 2459057.571769206115
(2020-Jul-27.07176921)
8.9282e-05 TDB
period 1372.287108297268
3.76
8.4651e-06
2.318e-08
d
yr
n .2623357734859781 1.6182e-09 deg/d
Q 2.68012996500615 1.1022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1583  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:56:07  

Additional Information
 Earth MOID = 1.15544 au 
 Jupiter MOID = 2.41585 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456988.5 (2014-Nov-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091375780100639 3.1217e-08  
q 2.153040989530109 7.6125e-08 au
tp 2456311.561128717113
(2013-Jan-19.06112872)
8.9572e-05 TDB
node 10.70446818219462 2.3616e-05 deg
peri 257.1240666748604 3.3079e-05 deg
i 8.098008837082865 5.0273e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1583  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:56:07  

Additional Information
 Jupiter MOID = 2.41585 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.744971568054702E-16 -2.360629074417938E-15 -6.784706782414281E-13 -6.478621591543614E-16 -1.727124697595722E-13 7.799767989596243E-16
q -2.360629074417938E-15 5.795041434144918E-15 1.534815797259365E-12 1.727354819014635E-15 3.986950334201475E-13 -1.741999844701122E-15
tp -6.784706782414281E-13 1.534815797259365E-12 8.023200620872485E-9 1.807330429071401E-13 2.080355230169137E-9 4.453872912792277E-12
node -6.478621591543614E-16 1.727354819014635E-15 1.807330429071401E-13 5.57717981332357E-10 -5.515600260439639E-10 2.448402678669523E-12
peri -1.727124697595722E-13 3.986950334201475E-13 2.080355230169137E-9 -5.515600260439639E-10 1.094198274539209E-9 -1.250337071577655E-12
i 7.799767989596243E-16 -1.741999844701122E-15 4.453872912792277E-12 2.448402678669523E-12 -1.250337071577655E-12 2.527362355424337E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.54   n/a E2021B10  

46858 (1998 QB50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QB50 = 1999 XA133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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