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 ]  
100826 (1998 HH2)
Classification: Main-belt Asteroid          SPK-ID: 2100826
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542067989151432 5.5258e-08  
a 2.37290904423306 1.3801e-08 au
q 2.006990336405088 1.3121e-07 au
i 1.602213948629122 5.8923e-06 deg
node 186.562262583435 0.00022176 deg
peri 273.3776369579651 0.00022252 deg
M 75.81836971090702 2.1359e-05 deg
tp 2458719.315093194020
(2019-Aug-23.81509319)
7.8291e-05 TDB
period 1335.119270384292
3.66
1.1647e-05
3.189e-08
d
yr
n .2696388315153147 2.3523e-09 deg/d
Q 2.738827752061032 1.5929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      10507 days (28.77 yr)  
   first obs. used      1991-04-14  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51373  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:11:51  

Additional Information
 Earth MOID = 1.02462 au 
 Jupiter MOID = 2.4085 au 
 T_jup = 3.527 
[ 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 16.6   n/a MPO453462  

100826 (1998 HH2)          Discovered 1998-Apr-18 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HH2 = 1998 DD32 = 2000 TW15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-02 01:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin