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 ]  
160031 (1998 HD48)
Classification: Main-belt Asteroid          SPK-ID: 2160031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .155576422500848 5.3302e-08  
a 2.606314842765133 2.0714e-08 au
q 2.200833703616873 1.4253e-07 au
i 4.605826721110324 4.8195e-06 deg
node 126.3703663869882 0.00010403 deg
peri 146.4228762418867 0.00010699 deg
M 304.5278206350059 2.6161e-05 deg
tp 2458837.316234122649
(2019-Dec-19.81623412)
0.00011203 TDB
period 1536.875696251321
4.21
1.8322e-05
5.016e-08
d
yr
n .2342414554918761 2.7925e-09 deg/d
Q 3.011795981913393 2.3937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:32:55  

Additional Information
 Earth MOID = 1.18581 au 
 Jupiter MOID = 2.10084 au 
 T_jup = 3.390 
[ 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 15.8   n/a MPO433023  

160031 (1998 HD48)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 1998 HD48 = 2002 EG29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin