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 ]  
266583 (2008 HT28)
Classification: Main-belt Asteroid          SPK-ID: 2266583
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2047351424198462 5.318e-08  
a 2.462411104168611 1.605e-08 au
q 1.95826901606044 1.3404e-07 au
i 3.760903601596234 3.8825e-06 deg
node 69.41735381993894 8.9667e-05 deg
peri 306.7789770097524 9.013e-05 deg
M 238.907844294674 1.0081e-05 deg
tp 2459475.236668915003
(2021-Sep-17.73666892)
4.1121e-05 TDB
period 1411.364756155582
3.86
1.3799e-05
3.778e-08
d
yr
n .2550722613908854 2.4939e-09 deg/d
Q 2.966553192276783 1.9336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      9271 days (25.38 yr)  
   first obs. used      1994-12-03  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:24:39  

Additional Information
 Earth MOID = .96266 au 
 Jupiter MOID = 2.49821 au 
 T_jup = 3.457 
[ 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 16.6   n/a MPO437227  

266583 (2008 HT28)          Discovered 2008-Apr-28 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2008 HT28 = 2006 UA347 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 16:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin