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 ]  
15723 Girraween (1990 SA2)
Classification: Main-belt Asteroid          SPK-ID: 2015723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330081639383749 3.4762e-08  
a 2.273937507994276 6.5394e-09 au
q 1.971485255145353 7.9075e-08 au
i 1.4254072579625 3.9362e-06 deg
node 359.1045594453111 0.000137 deg
peri 8.061537731076355 0.0001377 deg
M 242.8406334906271 1.3901e-05 deg
tp 2459408.106150696867
(2021-Jul-12.60615070)
4.9003e-05 TDB
period 1252.466777712841
3.43
5.4027e-06
1.479e-08
d
yr
n .2874327737917363 1.2399e-09 deg/d
Q 2.576389760843198 7.4091e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1726  
   data-arc span      13295 days (36.40 yr)  
   first obs. used      1983-09-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55281  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:26:10  

Additional Information
 Earth MOID = .970064 au 
 Jupiter MOID = 2.88178 au 
 T_jup = 3.598 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO332965  
diameter diameter 4.058 km 0.768 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.155   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

15723 Girraween           Discovered 1990 Sept. 20 by T. Seki at Geisei.
Girraween is an Australian Aboriginal word meaning "Place of flowers". In southeastern Queensland, Girraween National Park is famous for massive granite outcrops, spectacular wild flowers and a wide variety of wildlife. The name was suggested by E. Kato.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ show close-approach data ]
Alternate Designations
 1990 SA2 = 1983 RA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 04:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin