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 ]  
(1998 XD12)
Classification: Apollo [NEO, PHA]          SPK-ID: 3016524
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2451166.5 (1998-Dec-19.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6239587858885607 0.0011373  
a 1.398972866053427 0.0030598 au
q .5260714550596908 0.00044099 au
i 13.52589324785474 0.030216 deg
node 259.9825234708298 0.0043969 deg
peri 69.27581985909025 0.013969 deg
M 38.74817197951362 0.15882 deg
tp 2451101.447935867460
(1998-Oct-14.94793587)
0.053225 TDB
period 604.3831719363695
1.65
1.9829
0.005429
d
yr
n .5956486161694479 0.0019542 deg/d
Q 2.271874277047164 0.004969 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      10 days  
   first obs. used      1998-12-14  
   last obs. used      1998-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .51991  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:17:35  

Additional Information
 Earth MOID = .0321523 au 
 Jupiter MOID = 3.19472 au 
 T_jup = 4.507 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.7   n/a MPO57682  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-18 18:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin