Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
74415 (1999 AR9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2074415
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437849908777074 1.2283e-07  
a 3.203948173668488 6.7128e-08 AU
q 2.743268514744917 4.1737e-07 AU
i 25.46297780982991 1.5053e-05 deg
node 337.6170366867984 2.3833e-05 deg
peri 37.79612960996184 5.0639e-05 deg
M 35.94749767414714 4.6922e-05 deg
tp 2456791.333170262725
(2014-May-13.83317026)
0.00027062 JED
period 2094.723237427833
5.74
6.5832e-05
1.802e-07
d
yr
n .1718604126634188 5.4011e-09 deg/d
Q 3.664627832592059 7.678e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      427  
   data-arc span      6616 days (18.11 yr)  
   first obs. used      1996-09-13  
   last obs. used      2014-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 15:13:14  

Additional Information
 Earth MOID = 1.773 AU 
 T_jup = 3.026 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a MPO266273  

74415 (1999 AR9)          Discovered 1999-Jan-10 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AR9 = 1999 FC63 = 2002 PW45 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-27 05:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin