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 ]  
14644 (1998 XR3)
Classification: Main-belt Asteroid          SPK-ID: 2014644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0702414797699122 4.3021e-08  
a 2.728540202620663 1.6141e-08 au
q 2.536883501176892 1.1868e-07 au
i 2.718335647175705 5.0119e-06 deg
node 294.1921852117193 0.00010978 deg
peri 124.1176403154554 0.00011678 deg
M 294.1260120776876 4.1122e-05 deg
tp 2459301.734991110812
(2021-Mar-28.23499111)
0.00018892 TDB
period 1646.243080467286
4.51
1.4607e-05
3.999e-08
d
yr
n .2186797346463647 1.9404e-09 deg/d
Q 2.920196904064435 1.7274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1099  
   data-arc span      14177 days (38.81 yr)  
   first obs. used      1979-08-22  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5641  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:28:07  

Additional Information
 Earth MOID = 1.55031 au 
 Jupiter MOID = 2.30454 au 
 T_jup = 3.350 
[ 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 14.1   n/a MPO435838  

14644 (1998 XR3)          Discovered 1998-Dec-09 by Kobayashi, T. at Oizumi
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2145-Feb-07 05:16 00:25 Iris 0.0264236271165914 0.0264126975118958 0.0264345569930112 1.84638065870966 1.84638054087871 2504542.719652025 24.8864425870687 559.675785571919 28.7449390298542 -13.788140194015 33397.2252816853 T 21 CATAB v2.0e-lin.ifort 2019-Jul-12 19:28:11 2019-Jul-12 19:28

Alternate Designations
 1998 XR3 = 1979 QE4 = 1995 DN5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-28 19:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin