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 ]  
49386 (1998 XH12)
Classification: Main-belt Asteroid          SPK-ID: 2049386
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1173456315087433 3.8001e-08  
a 2.546183585765412 9.5686e-09 au
q 2.247400064956573 9.865e-08 au
i 4.885008823781043 3.2976e-06 deg
node 69.28731610232879 4.6606e-05 deg
peri 129.3851227744894 4.8957e-05 deg
M 243.3947367249796 1.6496e-05 deg
tp 2459081.171808138495
(2020-Aug-19.67180814)
6.8923e-05 TDB
period 1483.996914630936
4.06
8.3653e-06
2.29e-08
d
yr
n .2425881054405901 1.3675e-09 deg/d
Q 2.844967106574251 1.0691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      7711 days (21.11 yr)  
   first obs. used      1998-10-27  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53405  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:19:23  

Additional Information
 Earth MOID = 1.24878 au 
 Jupiter MOID = 2.11827 au 
 T_jup = 3.428 
[ 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 14.3   n/a MPO359072  

49386 (1998 XH12)          Discovered 1998-Dec-04 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XH12 = 1998 UD32 = 2000 FB15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 16:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin