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 ]  
48880 (1998 HU129)
Classification: Main-belt Asteroid          SPK-ID: 2048880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105575767761884 4.452e-08  
a 2.219543351079927 9.1798e-09 au
q 1.752201681526837 1.0194e-07 au
i 3.80661986444958 6.2531e-06 deg
node 1.488935986453266 6.4823e-05 deg
peri 291.590741174767 6.6463e-05 deg
M 53.35316264264883 1.3121e-05 deg
tp 2458421.500613559857
(2018-Oct-30.00061356)
4.3918e-05 TDB
period 1207.796800164574
3.31
7.493e-06
2.051e-08
d
yr
n .298063382806567 1.8491e-09 deg/d
Q 2.686885020633017 1.1113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      9425 days (25.80 yr)  
   first obs. used      1992-09-24  
   last obs. used      2018-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62873  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:18  

Additional Information
 Earth MOID = .740007 au 
 Jupiter MOID = 2.516 au 
 T_jup = 3.618 
[ 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 MPO293712  

48880 (1998 HU129)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HU129 = 1992 SZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin