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 ]  
305249 (2007 XR44)
Classification: Main-belt Asteroid          SPK-ID: 2305249
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401582290939544 5.2841e-08  
a 2.653555973487045 2.7885e-08 au
q 2.281638267441417 1.4905e-07 au
i 12.49410478034859 4.6332e-06 deg
node 88.97114055727835 2.6989e-05 deg
peri 98.94718398534754 3.3846e-05 deg
M 228.0901759253494 2.5384e-05 deg
tp 2459579.016095858349
(2021-Dec-30.51609586)
0.00011771 TDB
period 1578.849763237828
4.32
2.4887e-05
6.814e-08
d
yr
n .2280140950597665 3.5941e-09 deg/d
Q 3.025473679532674 3.1793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      7201 days (19.72 yr)  
   first obs. used      2000-03-04  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:53:16  

Additional Information
 Earth MOID = 1.32137 au 
 Jupiter MOID = 2.06326 au 
 T_jup = 3.342 
[ 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 15.9   n/a MPO455249  

305249 (2007 XR44)          Discovered 2007-Dec-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-01 20:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin