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 ]  
19109 (1981 EZ23)
Classification: Main-belt Asteroid          SPK-ID: 2019109
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0620143472701041 5.8978e-08  
a 2.628151173743692 1.7977e-08 au
q 2.465168094176819 1.5979e-07 au
i 2.916546726828939 6.2556e-06 deg
node 210.2591692254675 9.2277e-05 deg
peri 18.08803820911525 0.00010283 deg
M 118.5275539548597 4.856e-05 deg
tp 2458884.121660342710
(2020-Feb-04.62166034)
0.0002078 TDB
period 1556.230565146675
4.26
1.5967e-05
4.372e-08
d
yr
n .2313281900912093 2.3735e-09 deg/d
Q 2.791134253310565 1.9092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      15820 days (43.31 yr)  
   first obs. used      1977-04-24  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:46:00  

Additional Information
 Earth MOID = 1.45567 au 
 Jupiter MOID = 2.18215 au 
 T_jup = 3.397 
[ 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 15.9   n/a MPO467920  
diameter diameter 3.758 km 1.841 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19109 (1981 EZ23)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-04 06:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin