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48973 (1998 QO39)
Classification: Main-belt Asteroid          SPK-ID: 2048973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2469417190887747 4.4778e-08  
a 2.326139290614132 8.4178e-09 au
q 1.751718455349935 1.0239e-07 au
i 4.077888302592786 4.8571e-06 deg
node 109.22816640 7.3493e-05 deg
peri 283.3531972668762 7.4211e-05 deg
M 263.5112486453719 1.0371e-05 deg
tp 2458947.817117397642
(2020-Apr-08.31711740)
3.8106e-05 TDB
period 1295.84185210988
3.55
7.0341e-06
1.926e-08
d
yr
n .2778116784959914 1.508e-09 deg/d
Q 2.900560125878328 1.0497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      9702 days (26.56 yr)  
   first obs. used      1991-09-30  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57928  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:16:56  

Additional Information
 Earth MOID = .762729 au 
 Jupiter MOID = 2.54257 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456147.5 (2012-Aug-08.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2481157720160802 4.5084e-08  
q 1.747999891344288 1.033e-07 au
tp 2456357.430983115353
(2013-Mar-05.93098312)
3.3899e-05 TDB
node 109.31974462189 7.3655e-05 deg
peri 283.2353600891304 7.4348e-05 deg
i 4.074955887065742 4.8527e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      9702 days (26.56 yr)  
   first obs. used      1991-09-30  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57928  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:16:56  

Additional Information
 Jupiter MOID = 2.54257 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.03258847380875E-15 -4.649750269226355E-15 2.104361162624467E-13 -3.371467293645952E-14 6.025036308290715E-14 -1.315206581567441E-15
q -4.649750269226355E-15 1.067172521670091E-14 -4.72935822455947E-13 7.756308227079693E-14 -1.38889872683432E-13 2.891459607861174E-15
tp 2.104361162624467E-13 -4.72935822455947E-13 1.14912539596312E-9 -3.275316742479563E-11 3.716955367462837E-10 -1.468716756141084E-12
node -3.371467293645952E-14 7.756308227079693E-14 -3.275316742479563E-11 5.425062242602848E-9 -5.419247222556402E-9 -1.525193534453532E-11
peri 6.025036308290715E-14 -1.38889872683432E-13 3.716955367462837E-10 -5.419247222556402E-9 5.527661103353381E-9 1.484257218912137E-11
i -1.315206581567441E-15 2.891459607861174E-15 -1.468716756141084E-12 -1.525193534453532E-11 1.484257218912137E-11 2.354838735568268E-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 16.1   n/a MPO439426  

48973 (1998 QO39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QO39 = 1991 SJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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