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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
19111 (1981 EM29)
Classification: Main-belt Asteroid          SPK-ID: 2019111
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002592067686035 3.192e-08  
a 2.310584948371015 9.7529e-09 au
q 2.078927534275862 7.3642e-08 au
i 5.762685212886656 4.3516e-06 deg
node 293.3666675202475 4.5463e-05 deg
peri 311.3706089905094 5.2927e-05 deg
M 114.0819038256446 2.656e-05 deg
tp 2458989.967195360400
(2020-May-20.46719536)
9.4682e-05 TDB
period 1282.866123043763
3.51
8.1224e-06
2.224e-08
d
yr
n .2806216436254894 1.7767e-09 deg/d
Q 2.542242362466167 1.0731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1037  
   data-arc span      14405 days (39.44 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57032  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:46:01  

Additional Information
 Earth MOID = 1.07064 au 
 Jupiter MOID = 2.49327 au 
 T_jup = 3.571 
[ 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 15.36   n/a E2021B10  
diameter diameter 1.911 km 0.397 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.484   0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19111 (1981 EM29)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EM29 = 2000 UB96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-19 00:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin