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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
376950 (2002 ER97)
Classification: Mars-crossing Asteroid          SPK-ID: 2376950
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3905932156583674 5.9111e-08  
a 2.693392676925342 1.5081e-08 au
q 1.641371770214374 1.6425e-07 au
i 2.897573543896797 8.7118e-06 deg
node 73.47047485110561 0.00010539 deg
peri 52.97229532524788 0.00010771 deg
M 59.66587222165122 1.4892e-05 deg
tp 2458732.909043282008
(2019-Sep-06.40904328)
6.5451e-05 TDB
period 1614.536766689894
4.42
1.356e-05
3.713e-08
d
yr
n .2229741727951282 1.8727e-09 deg/d
Q 3.745413583636309 2.0971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6601 days (18.07 yr)  
   first obs. used      2002-01-07  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62413  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 02:49:53  

Additional Information
 Earth MOID = .658728 au 
 Jupiter MOID = 1.34666 au 
 T_jup = 3.255 
[ 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 17.3   n/a MPO455717  
diameter diameter 1.757 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.063   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

376950 (2002 ER97)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

[ 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 2020-Feb-26 21:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin