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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .108674572645784 3.1213e-08  
a 2.417193410399356 1.0178e-08 au
q 2.154505949522 7.6209e-08 au
i 8.100476958005897 5.3455e-06 deg
node 10.649273378203 2.3768e-05 deg
peri 257.5933986615053 3.4628e-05 deg
M 344.743192816354 2.5912e-05 deg
tp 2459058.673699897335
(2020-Jul-28.17369990)
9.8847e-05 TDB
period 1372.668062914835
3.76
8.6697e-06
2.374e-08
d
yr
n .2622629678114217 1.6564e-09 deg/d
Q 2.679880871276711 1.1284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      7917 days (21.68 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:35  

Additional Information
 Earth MOID = 1.15661 au 
 Jupiter MOID = 2.41934 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456903.5 (2014-Sep-03.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092525685842231 3.1323e-08  
q 2.152549692411693 7.652e-08 au
tp 2456311.686212140738
(2013-Jan-19.18621214)
9.6862e-05 TDB
node 10.70846582641636 2.379e-05 deg
peri 257.124296159986 3.4468e-05 deg
i 8.09824642642573 5.3431e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      7917 days (21.68 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:35  

Additional Information
 Jupiter MOID = 2.41934 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.811546353106672E-16 -2.379738155463202E-15 -7.319115368567061E-13 -2.013705834476321E-15 -1.848507907064518E-13 1.719790152816471E-15
q -2.379738155463202E-15 5.855328656772864E-15 1.745677630965143E-12 4.973070816079065E-15 4.482838298466942E-13 -4.000136891643774E-15
tp -7.319115368567061E-13 1.745677630965143E-12 9.38221654397693E-9 9.589796008903765E-13 2.421735258145878E-9 3.397961741207065E-12
node -2.013705834476321E-15 4.973070816079065E-15 9.589796008903765E-13 5.659693990477109E-10 -5.595117256575142E-10 -1.247885924094278E-12
peri -1.848507907064518E-13 4.482838298466942E-13 2.421735258145878E-9 -5.595117256575142E-10 1.18801974800521E-9 2.142270507133784E-12
i 1.719790152816471E-15 -4.000136891643774E-15 3.397961741207065E-12 -1.247885924094278E-12 2.142270507133784E-12 2.854889799054549E-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 14.5   n/a MPO385115  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1960-Dec-19 17:36 00:02 Vesta 0.0427945102503162 0.0427850375092447 0.04280398344528 3.90296951080521 3.90296879842571 2437288.233246202 1.79101159232731 519.050683734396 33.7951998462473 -25.0721777085471 80685.4597760291 T 27 CATAB v2.0f-lin.ifort 2020-May-20 09:35:52 2020-May-20 09:35
1962-Oct-14 22:38 00:03 Ceres 0.0393485226223065 0.0393457321987034 0.0393513153586132 3.90200453937461 3.90200178783595 2437952.443357605 2.60572626562725 506.286203884512 34.4917044262732 74.6457246406139 163163.855650422 T 27 CATAB v2.0f-lin.ifort 2020-May-20 09:35:52 2020-May-20 09:35

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