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 ]  
100881 (1998 HK98)
Classification: Main-belt Asteroid          SPK-ID: 2100881
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094350905079365 4.2417e-08  
a 2.323404477741702 9.2314e-09 au
q 1.836802050659323 9.7868e-08 au
i 5.23757507227202 5.5273e-06 deg
node 16.35840572086554 6.5493e-05 deg
peri 236.1244117629046 6.7498e-05 deg
M 64.22507505698998 1.6463e-05 deg
tp 2458769.725520774465
(2019-Oct-13.22552077)		 5.8544e-05 TDB
period 1293.557266339862
3.54		 7.7093e-06
2.111e-08		 d
yr
n .2783023290639655 1.6586e-09 deg/d
Q 2.81000690482408 1.1165e-08 au
   Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      8626 days (23.62 yr)  
   first obs. used      1995-08-29  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54879  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:15:03  

Additional Information
 Earth MOID = .82898 au 
 Jupiter MOID = 2.25286 au 
 T_jup = 3.541 
[ 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 16.5   n/a MPO474883  

100881 (1998 HK98)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
[ 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-09 17:31 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin