Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
44117 Haroldlarson (1998 HL27)
Classification: Main-belt Asteroid          SPK-ID: 2044117
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0725648331467766 6.6632e-08  
a 2.357248990077651 2.0339e-08 AU
q 2.186195610427258 1.6612e-07 AU
i 3.87768944081794 7.1641e-06 deg
node 124.7408293913961 9.8403e-05 deg
peri 95.52781027946583 0.00011306 deg
M 216.6080335606755 5.7608e-05 deg
tp 2457527.037047932759
(2016-May-18.53704793)
0.00021429 JED
period 1321.924386440447
3.62
1.7109e-05
4.684e-08
d
yr
n .2723302510284827 3.5247e-09 deg/d
Q 2.528302369728043 2.1815e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      5612 days (15.36 yr)  
   first obs. used      1998-04-21  
   last obs. used      2013-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55419  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 06:11:42  

Additional Information
 Earth MOID = 1.18348 AU 
 T_jup = 3.547 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO266163  

44117 Haroldlarson           Discovered 1998 Apr. 21 by Spacewatch at Kitt Peak.
Harold P. Larson (b. 1938), pioneering airborne infrared astronomer and educator at the University of Arizona, discovered the presence of water in Jupiter's atmosphere. He is a distinguished educator, winning awards for innovative work with undergraduate students.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 1998 HL27 = 1999 RM239 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Dec-21 14:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin