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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
66431 (1999 NX45)
Classification: Main-belt Asteroid          SPK-ID: 2066431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508668526732004 3.7473e-08  
a 2.431981680019506 1.3311e-08 au
q 2.06507625819608 9.3324e-08 au
i 7.352256661980315 3.8069e-06 deg
node 156.0986110213653 4.7712e-05 deg
peri 151.5913059193713 5.2064e-05 deg
M 163.1030742374463 2.3972e-05 deg
tp 2458372.877475186858
(2018-Sep-11.37747519)
8.9424e-05 TDB
period 1385.284182956603
3.79
1.1373e-05
3.114e-08
d
yr
n .259874475164839 2.1336e-09 deg/d
Q 2.798887101842931 1.5319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      9483 days (25.96 yr)  
   first obs. used      1994-02-06  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:56:57  

Additional Information
 Earth MOID = 1.05402 au 
 Jupiter MOID = 2.46858 au 
 T_jup = 3.480 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456762.5 (2014-Apr-15.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519065248521022 3.7304e-08  
q 2.061884868893833 9.291e-08 au
tp 2456988.451058966012
(2014-Nov-26.95105897)
8.3256e-05 TDB
node 156.1534210957465 4.7676e-05 deg
peri 151.6577838518684 5.197e-05 deg
i 7.355596447304556 3.8093e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      9483 days (25.96 yr)  
   first obs. used      1994-02-06  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:56:57  

Additional Information
 Jupiter MOID = 2.46858 au 
 T_jup = 3.480 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.391565748869574E-15 -3.44094394374209E-15 -1.243310225894222E-12 -9.934876859970695E-15 -3.119383323817176E-13 -2.457133422558056E-15
q -3.44094394374209E-15 8.632321021105193E-15 3.419443038625553E-12 2.930102084576698E-14 8.480542257719175E-13 6.848875990502662E-15
tp -1.243310225894222E-12 3.419443038625553E-12 6.931594231796873E-9 5.808957668429258E-11 1.773003879864369E-9 9.191792781496527E-12
node -9.934876859970695E-15 2.930102084576698E-14 5.808957668429258E-11 2.272961297964805E-9 -2.238973368548686E-9 1.013352918185246E-12
peri -3.119383323817176E-13 8.480542257719175E-13 1.773003879864369E-9 -2.238973368548686E-9 2.70084807998266E-9 1.301910430930907E-12
i -2.457133422558056E-15 6.848875990502662E-15 9.191792781496527E-12 1.013352918185246E-12 1.301910430930907E-12 1.451079893034804E-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 16.0   n/a MPO453060  

66431 (1999 NX45)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-02 19:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin