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 ]  
20144 (1996 RA33)
Classification: Jupiter Trojan          SPK-ID: 2020144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01128709813290932 6.5708e-08  
a 5.188307076258372 1.079e-07 au
q 5.129746145144976 2.9743e-07 au
i 9.352822462291241 5.568e-06 deg
node 29.47349659565165 3.5022e-05 deg
peri 160.6816898435373 0.00025235 deg
M 129.4503855107933 0.00024979 deg
tp 2457048.335369482282
(2015-Jan-25.83536948)
0.0029865 TDB
period 4316.551586783715
11.82
0.00013466
3.687e-07
d
yr
n .08339990679185602 2.6018e-09 deg/d
Q 5.246868007371768 1.0912e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      13320 days (36.47 yr)  
   first obs. used      1983-06-12  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:41:55  

Additional Information
 Earth MOID = 4.12838 au 
 Jupiter MOID = .286642 au 
 T_jup = 2.973 
[ 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 11.4   n/a MPO412335  
diameter diameter 27.467 km 0.639 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.071   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

20144 (1996 RA33)          Discovered 1996-Sep-15 by Uppsala-DLR Trojan Survey at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 RA33 = 1998 WH20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 08:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin