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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587520363005122 5.8927e-08  
a 2.268153657116852 1.5396e-08 AU
q 1.908079645407099 1.3755e-07 AU
i 3.155351817762388 5.9572e-06 deg
node 121.5933091705537 0.00011502 deg
peri 275.9234576949383 0.00011676 deg
M 69.6559466515674 2.0825e-05 deg
tp 2456759.085787638967
(2014-Apr-11.58578764)
7.1297e-05 JED
period 1247.691268696815
3.42
1.2704e-05
3.478e-08
d
yr
n .2885329159800979 2.9379e-09 deg/d
Q 2.628227668826606 1.7841e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      954  
   data-arc span      15886 days (43.49 yr)  
   first obs. used      1971-04-16  
   last obs. used      2014-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50522  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:07:17  

Additional Information
 Earth MOID = .918182 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-Dec-20 17:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin