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 ]  
18391 (1992 PO1)
Classification: Main-belt Asteroid          SPK-ID: 2018391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2484585117737304 3.807e-08  
a 2.396475971418558 8.9482e-09 au
q 1.801051118058399 9.1748e-08 au
i 3.125667933141593 4.4761e-06 deg
node 299.1534401303146 6.6717e-05 deg
peri 20.55290911024155 6.7069e-05 deg
M 230.6402453165707 7.0403e-06 deg
tp 2459687.416764663025
(2022-Apr-17.91676466)
2.7405e-05 TDB
period 1355.05850105901
3.71
7.5895e-06
2.078e-08
d
yr
n .265671186682089 1.488e-09 deg/d
Q 2.991900824778718 1.1172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1131  
   data-arc span      10961 days (30.01 yr)  
   first obs. used      1991-03-17  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:43:13  

Additional Information
 Earth MOID = .786473 au 
 Jupiter MOID = 2.33033 au 
 T_jup = 3.484 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.29   n/a E2021B10  

18391 (1992 PO1)          Discovered 1992-Aug-08 by Elst, E. W. at Caussols
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 PO1 = 1999 JB29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-22 18:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin