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 ]  
18817 (1999 LF32)
Classification: Main-belt Asteroid          SPK-ID: 2018817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703066776582239 3.1419e-08  
a 2.355546896930953 7.0561e-09 au
q 1.954381530846504 7.3627e-08 au
i 2.844009372361206 3.0674e-06 deg
node 112.6866880187793 8.0503e-05 deg
peri 332.0289542788676 8.1194e-05 deg
M 195.8212204980344 1.0978e-05 deg
tp 2459802.713631125302
(2022-Aug-11.21363113)
4.1276e-05 TDB
period 1320.492866756346
3.62
5.9334e-06
1.624e-08
d
yr
n .2726254787610498 1.225e-09 deg/d
Q 2.756712263015403 8.2578e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1542  
   data-arc span      10636 days (29.12 yr)  
   first obs. used      1991-05-15  
   last obs. used      2020-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:38:40  

Additional Information
 Earth MOID = .970766 au 
 Jupiter MOID = 2.45589 au 
 T_jup = 3.533 
[ 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 14.91   n/a E2021B10  
rotation period rot_per 7.553 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18817 (1999 LF32)          Discovered 1999-Jun-15 by Spacewatch at Kitt Peak
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 LF32 = 1998 HS137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 02:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin