Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
8438 Marila (4825 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2008438
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1584904692695857 6.1631e-08  
a 2.26736843889615 1.5046e-08 AU
q 1.908012151008452 1.4368e-07 AU
i 3.15529948203857 6.2221e-06 deg
node 121.594065686436 0.00011906 deg
peri 275.853399079257 0.00012094 deg
M 12.01211806804416 2.1588e-05 deg
tp 2456758.889909151536
(2014-Apr-11.38990915)
7.464e-05 JED
period 1247.043412376816
3.41
1.2413e-05
3.398e-08
d
yr
n .2886828128251397 2.8735e-09 deg/d
Q 2.626724726783849 1.7431e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      948  
   data-arc span      15573 days (42.64 yr)  
   first obs. used      1971-04-16  
   last obs. used      2013-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51724  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Dec-19 23:31:19  

Additional Information
 Earth MOID = .917101 AU 
 T_jup = 3.596 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO267741  

8438 Marila           Discovered 1971 May 13 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for aythya marila, or greater scaup.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 4825 T-1 = 1986 TH15 = 1991 AX2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-25 09:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin