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 ]  
100845 (1998 HY23)
Classification: Main-belt Asteroid          SPK-ID: 2100845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1230626562846286 3.7547e-08  
a 2.241750865127885 8.4052e-09 au
q 1.965875048936883 8.3574e-08 au
i 2.312366036190628 4.1744e-06 deg
node 249.5672553763658 0.00011004 deg
peri 6.367897305538421 0.00011183 deg
M 166.2308561223714 1.9752e-05 deg
tp 2458434.405954514648
(2018-Nov-11.90595451)
6.6484e-05 TDB
period 1225.968879235653
3.36
6.8949e-06
1.888e-08
d
yr
n .293645300543393 1.6515e-09 deg/d
Q 2.517626681318887 9.4395e-09 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      8374 days (22.93 yr)  
   first obs. used      1996-12-17  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56833  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:36:16  

Additional Information
 Earth MOID = .950987 au 
 Jupiter MOID = 2.51955 au 
 T_jup = 3.623 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO248020  

100845 (1998 HY23)          Discovered 1998-Apr-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HY23 = 1999 TN202 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-05 14:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin