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 ]  
136992 (1998 SL45)
Classification: Main-belt Asteroid          SPK-ID: 2136992
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05730767686127088 3.4044e-07  
a 2.5077135314404 1.1593e-08 au
q 2.364002294719977 8.5515e-07 au
i 5.744203707191899 4.8994e-06 deg
node 17.11286642800029 3.9271e-05 deg
peri 158.2813989232324 5.2551e-05 deg
M 358.6160972801754 4.8725e-05 deg
tp 2459006.075943622536
(2020-Jun-05.57594362)
0.00019632 TDB
period 1450.491913454402
3.97
1.0058e-05
2.754e-08
d
yr
n .2481916628839704 1.721e-09 deg/d
Q 2.651424768160823 1.2257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      9343 days (25.58 yr)  
   first obs. used      1994-09-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:42:24  

Additional Information
 Earth MOID = 1.36843 au 
 Jupiter MOID = 2.30757 au 
 T_jup = 3.454 
[ 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 15.5   n/a MPO251235  
diameter diameter 2.621 km 0.690 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 119. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]
geometric albedo albedo 0.162   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136992 (1998 SL45)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SL45 = 1994 SJ12 = 2000 AC133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-31 00:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin