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 ]  
150251 (1999 JR99)
Classification: Main-belt Asteroid          SPK-ID: 2150251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130705665439677 3.6596e-08  
a 2.679558589084161 1.7448e-08 au
q 2.108623522420244 9.8103e-08 au
i 16.09620349945399 5.5776e-06 deg
node 170.2513654655517 1.5654e-05 deg
peri 79.21463959433289 2.1288e-05 deg
M 327.2648161905063 1.6793e-05 deg
tp 2459346.181899710380
(2021-May-11.68189971)
7.5644e-05 TDB
period 1602.113621873928
4.39
1.5648e-05
4.284e-08
d
yr
n .2247031640483292 2.1947e-09 deg/d
Q 3.250493655748079 2.1165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:44  

Additional Information
 Earth MOID = 1.16426 au 
 Jupiter MOID = 1.98722 au 
 T_jup = 3.289 
[ show covariance matrix ]

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 15.5   n/a MPO469594  

150251 (1999 JR99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 1999 JR99 = 2003 DT22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 09:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin