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 ]  
120689 (1997 EG5)
Classification: Main-belt Asteroid          SPK-ID: 2120689
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066500243754853 4.5691e-08  
a 2.732310611008761 1.5118e-08 au
q 2.44090961774328 1.2359e-07 au
i 1.047530213137102 5.2217e-06 deg
node 185.3707206088755 0.00025049 deg
peri 31.69984600689586 0.00025144 deg
M 18.97292073687987 2.179e-05 deg
tp 2458913.558881810220
(2020-Mar-05.05888181)
9.9731e-05 TDB
period 1649.65652797366
4.52
1.3692e-05
3.749e-08
d
yr
n .2182272454267815 1.8112e-09 deg/d
Q 3.023711604274243 1.673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      8449 days (23.13 yr)  
   first obs. used      1997-03-04  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:27  

Additional Information
 Earth MOID = 1.43368 au 
 Jupiter MOID = 1.94419 au 
 T_jup = 3.345 
[ 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 16.3   n/a MPO426760  
diameter diameter 4.160 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.028   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120689 (1997 EG5)          Discovered 1997-Mar-04 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 EG5 = 1999 UW34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-01 02:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin