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 ]  
24917 (1997 EH12)
Classification: Main-belt Asteroid          SPK-ID: 2024917
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04237676747492767 4.4593e-08  
a 2.282513905343167 6.7773e-09 au
q 2.185788344318151 1.0343e-07 au
i 5.992089802917495 3.916e-06 deg
node 216.1137677578366 3.6223e-05 deg
peri 324.0642752849822 5.2093e-05 deg
M 303.0891981424438 3.7886e-05 deg
tp 2459399.618118007360
(2021-Jul-04.11811801)
0.0001327 TDB
period 1259.559172300295
3.45
5.6099e-06
1.536e-08
d
yr
n .28581428162882 1.273e-09 deg/d
Q 2.379239466368183 7.0645e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      10873 days (29.77 yr)  
   first obs. used      1991-06-14  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:38:55  

Additional Information
 Earth MOID = 1.18874 au 
 Jupiter MOID = 2.58625 au 
 T_jup = 3.596 
[ 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 15.22   n/a MPCxxxxx  
diameter diameter 1.890 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.375   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24917 (1997 EH12)          Discovered 1997-Mar-03 by Spacewatch at Kitt Peak
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 EH12 = 2000 AG74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 04:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin