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 ]  
23489 (1991 PU16)
Classification: Main-belt Asteroid          SPK-ID: 2023489
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .121480313671161 5.0182e-08  
a 2.372654752655258 1.4347e-08 AU
q 2.084423909069326 1.1909e-07 AU
i 3.25985666382739 6.247e-06 deg
node 21.04740525797848 8.1244e-05 deg
peri 303.197931678985 8.5399e-05 deg
M 151.9378359472704 2.7567e-05 deg
tp 2456437.104096532472
(2013-May-24.60409653)
0.00010132 JED
period 1334.90466007887
3.65
1.2108e-05
3.315e-08
d
yr
n .2696821808822887 2.446e-09 deg/d
Q 2.66088559624119 1.6089e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47275  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:14:52  

Additional Information
 Earth MOID = 1.07531 AU 
 T_jup = 3.531 
[ 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 14.6 mag n/a MPO266078  

23489 (1991 PU16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PU16 = 1995 VB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-May-23 14:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin