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 ]  
(2011 EN77)
Classification: Mars-crossing Asteroid          SPK-ID: 3560047
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .548014038172234 4.0478e-07  
a 3.117257265207807 3.827e-08 au
q 1.408956523279542 1.2555e-06 au
i 14.18262619814686 5.6047e-05 deg
node 328.0950475332804 7.16e-05 deg
peri 257.7959512941131 8.3868e-05 deg
M 266.6677798529277 3.8356e-05 deg
tp 2459721.678499943621
(2022-May-22.17849994)
0.0002152 TDB
period 2010.283905001367
5.50
3.7019e-05
1.014e-07
d
yr
n .1790791833453769 3.2978e-09 deg/d
Q 4.825558007136072 5.9242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6370 days (17.44 yr)  
   first obs. used      2000-04-04  
   last obs. used      2017-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67564  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:54:21  

Additional Information
 Earth MOID = .490709 au 
 Jupiter MOID = 1.18062 au 
 T_jup = 2.925 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO419417  

[ show close-approach data ]
Alternate Designations
 2011 EN77 = 2000 GX169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-17 21:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin