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 ]  
5486 (1991 UT2)
Classification: Main-belt Asteroid          SPK-ID: 2005486
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06335170322894369 4.1436e-08  
a 2.602746831110612 1.1235e-08 au
q 2.437858386286019 1.1017e-07 au
i 10.19437637020284 5.3765e-06 deg
node 63.71918148931341 2.1381e-05 deg
peri 221.5564063687684 4.5868e-05 deg
M 48.70843222874927 4.0328e-05 deg
tp 2458792.985730007154
(2019-Nov-05.48573001)
0.00017195 TDB
period 1533.720831879523
4.20
9.9306e-06
2.719e-08
d
yr
n .2347232902606091 1.5198e-09 deg/d
Q 2.767635275935205 1.1947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      23586 days (64.57 yr)  
   first obs. used      1955-03-13  
   last obs. used      2019-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:39:07  

Additional Information
 Earth MOID = 1.43116 au 
 Jupiter MOID = 2.31204 au 
 T_jup = 3.389 
[ 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 12.7   n/a MPO492816  
diameter diameter 7.174 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.90 h n/a LCDB (Rev. 2019-August); 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:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bull. 39, 51-55.]
geometric albedo albedo 0.455   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5486 (1991 UT2)          Discovered 1991-Oct-31 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 UT2 = 1974 WP1 = 1977 KQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-28 07:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin