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 ]  
5638 Deikoon (1988 TA3)
Classification: Jupiter Trojan          SPK-ID: 2005638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072211017267607 2.6721e-08  
a 5.240875460878128 6.3072e-08 au
q 4.67894301995003 1.7105e-07 au
i 10.91462892948129 1.9175e-07 deg
node 156.029977819452 3.9068e-06 deg
peri 92.65216017302239 1.3065e-05 deg
M 341.6173130946535 1.5731e-05 deg
tp 2459424.274541493623
(2021-Jul-28.77454149)
0.00019249 TDB
period 4382.321004133195
12.00
7.9109e-05
2.166e-07
d
yr
n .0821482496741944 1.4829e-09 deg/d
Q 5.802807901806225 6.9834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2102  
   data-arc span      11901 days (32.58 yr)  
   first obs. used      1988-08-18  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:23:53  

Additional Information
 Earth MOID = 3.68679 au 
 Jupiter MOID = .180607 au 
 T_jup = 2.952 
[ 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 10.54   n/a E2021B10  
diameter diameter 41.455 km 0.482 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 19.40 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Molnar, L.A.; Haegert, M.J.; Hoogenboom, K.M. (2008) Minor Planet Bull. 35, 82-84.]
geometric albedo albedo 0.071   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

5638 Deikoon (1988 TA3)          Discovered 1988-Oct-10 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 TA3 = 1988 RJ1 = 1989 TO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-11 11:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin