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 ]  
4833 Meges (1989 AL2)
Classification: Jupiter Trojan          SPK-ID: 2004833
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09316257280807726 5.2397e-08  
a 5.233366113409065 9.476e-08 au
q 4.745812261837269 3.235e-07 au
i 34.72963087013966 4.8853e-06 deg
node 101.7450470766904 8.9133e-06 deg
peri 280.5433852849096 3.0322e-05 deg
M 320.1318392465889 3.1549e-05 deg
tp 2459484.776955850800
(2021-Sep-27.27695585)
0.0003849 TDB
period 4372.905617206622
11.97
0.00011877
3.252e-07
d
yr
n .08232512464560467 2.236e-09 deg/d
Q 5.720919964980861 1.0359e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1975  
   data-arc span      16311 days (44.66 yr)  
   first obs. used      1975-12-04  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:20:27  

Additional Information
 Earth MOID = 3.93364 au 
 Jupiter MOID = .0760713 au 
 T_jup = 2.636 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.0   n/a MPO458879  
diameter diameter 80.165 km 0.939 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 14.250 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Stephens, R.D.; Coley, D.R.; Warner, B.D.; French, L.M. (2016) Minor Planet Bull. 43, 323-331.]
[Stephens, R.D. Warner, B.D. (2017) Minor Planet Bull. 44, 312-316.]
geometric albedo albedo 0.076   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

4833 Meges (1989 AL2)          Discovered 1989-Jan-08 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 AL2 = 1975 XN5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 19:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin