Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
46851 (1998 QN39)
Classification: Main-belt Asteroid          SPK-ID: 2046851
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 .1964736822258771 5.2893e-08  
a 2.464339052234797 1.4351e-08 au
q 1.980161284389198 1.2714e-07 au
i 2.773300346941 4.5426e-06 deg
node 49.6533293565915 8.6421e-05 deg
peri 278.9837939295542 8.8533e-05 deg
M 229.5844934415929 2.761e-05 deg
tp 2459512.389059654077
(2021-Oct-24.88905965)
0.00011211 TDB
period 1413.022625441686
3.87
1.2343e-05
3.379e-08
d
yr
n .2547729905509973 2.2255e-09 deg/d
Q 2.948516820080395 1.7171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7932 days (21.72 yr)  
   first obs. used      1998-07-31  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:34  

Additional Information
 Earth MOID = .971306 au 
 Jupiter MOID = 2.40372 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456063.5 (2012-May-16.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1975349514901777 5.2881e-08  
q 1.977162982223543 1.2734e-07 au
tp 2456682.619389061679
(2014-Jan-25.11938906)
9.1336e-05 TDB
node 49.75546578004567 8.6497e-05 deg
peri 278.3819050125431 8.8571e-05 deg
i 2.773295648861685 4.5385e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7932 days (21.72 yr)  
   first obs. used      1998-07-31  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:34  

Additional Information
 Jupiter MOID = 2.40372 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.796374666836998E-15 -6.708570694724772E-15 2.849467530294596E-12 -1.782225136367566E-14 5.46688144782902E-13 1.264802891498656E-15
q -6.708570694724772E-15 1.621538343773689E-14 -6.221093345764704E-12 4.238348275627821E-14 -1.188020307154734E-12 -2.977320991009632E-15
tp 2.849467530294596E-12 -6.221093345764704E-12 8.342329498162888E-9 -2.983733034336944E-11 1.752847492101943E-9 1.122345141487888E-12
node -1.782225136367566E-14 4.238348275627821E-14 -2.983733034336944E-11 7.481736415305613E-9 -7.478558529021013E-9 -8.045483481393281E-11
peri 5.46688144782902E-13 -1.188020307154734E-12 1.752847492101943E-9 -7.478558529021013E-9 7.84488992112113E-9 8.055284317329621E-11
i 1.264802891498656E-15 -2.977320991009632E-15 1.122345141487888E-12 -8.045483481393281E-11 8.055284317329621E-11 2.059811402188701E-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 15.4   n/a MPO266176  

46851 (1998 QN39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-14 16:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin