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 ]  
65635 (1977 EA8)
Classification: Main-belt Asteroid          SPK-ID: 2065635
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05435947489224084 6.491e-08  
a 2.568342610364205 1.7777e-08 au
q 2.42872885472144 1.7275e-07 au
i 15.11415104097495 7.4239e-06 deg
node 355.3132257079442 1.6084e-05 deg
peri 201.3431247447483 5.1042e-05 deg
M 159.9492342799157 4.7952e-05 deg
tp 2458332.529124525340
(2018-Aug-02.02912453)
0.00019915 TDB
period 1503.411480858039
4.12
1.5609e-05
4.274e-08
d
yr
n .2394554016539357 2.4861e-09 deg/d
Q 2.70795636600697 1.8743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      15485 days (42.40 yr)  
   first obs. used      1977-03-12  
   last obs. used      2019-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:42:37  

Additional Information
 Earth MOID = 1.43424 au 
 Jupiter MOID = 2.2642 au 
 T_jup = 3.380 
[ 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 14.7   n/a MPO436239  
diameter diameter 2.948 km 0.467 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65635 (1977 EA8)          Discovered 1977-Mar-12 by Kosai, H., Hurukawa, K. at Kiso
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1977 EA8 = 1999 RL171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-06 12:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin