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 ]  
138439 (2000 HD98)
Classification: Main-belt Asteroid          SPK-ID: 2138439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09750910886524482 5.1041e-08  
a 2.627186303330239 1.5429e-08 au
q 2.37101170806953 1.2934e-07 au
i 13.42674594999947 4.9925e-06 deg
node 200.1822157191116 2.0599e-05 deg
peri 205.4092375163873 3.4505e-05 deg
M 64.2991605651619 2.5257e-05 deg
tp 2458722.696613115768
(2019-Aug-27.19661312)
0.0001095 TDB
period 1555.373637840455
4.26
1.3701e-05
3.751e-08
d
yr
n .2314556394949827 2.0389e-09 deg/d
Q 2.883360898590947 1.6933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      8677 days (23.76 yr)  
   first obs. used      1996-05-15  
   last obs. used      2020-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:36:23  

Additional Information
 Earth MOID = 1.38455 au 
 Jupiter MOID = 2.54878 au 
 T_jup = 3.356 
[ 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 15.9   n/a MPO310116  

138439 (2000 HD98)          Discovered 2000-Apr-26 by Ondrejov at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 2000 HD98 = 1996 JG16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 14:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin