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 ]  
72995 (2002 ER12)
Classification: Main-belt Asteroid          SPK-ID: 2072995
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307514695618128 3.5739e-08  
a 2.443388005441449 8.5505e-09 au
q 2.123911433020273 8.9676e-08 au
i 2.458907752514897 3.4268e-06 deg
node 251.9130963097788 9.9226e-05 deg
peri 328.7133048820641 0.00010052 deg
M 299.7395850030243 1.6664e-05 deg
tp 2459434.016031131730
(2021-Aug-07.51603113)
6.4955e-05 TDB
period 1395.041358604017
3.82
7.3228e-06
2.005e-08
d
yr
n .2580568653249413 1.3546e-09 deg/d
Q 2.762864577862625 9.6684e-09 au
  Orbit Determination Parameters
   # obs. used (total)      987  
   data-arc span      9932 days (27.19 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:16:41  

Additional Information
 Earth MOID = 1.11496 au 
 Jupiter MOID = 2.21521 au 
 T_jup = 3.487 
[ 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 15.62   n/a MPCxxxxx  
diameter diameter 2.446 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.129   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72995 (2002 ER12)          Discovered 2002-Mar-14 by Yeung, W. K. Y. at Desert Eagle
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-23 10:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin