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 ]  
80287 (1999 XZ44)
Classification: Main-belt Asteroid          SPK-ID: 2080287
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254927726296148 3.7674e-08  
a 2.297895515494622 9.3982e-09 au
q 2.009526236042044 8.874e-08 au
i 3.550739403958449 4.5093e-06 deg
node 249.091113277959 6.5972e-05 deg
peri 126.6236889100253 6.8832e-05 deg
M 353.057673429634 2.1742e-05 deg
tp 2459025.035582990140
(2020-Jun-24.53558299)
7.6927e-05 TDB
period 1272.312644316401
3.48
7.8055e-06
2.137e-08
d
yr
n .282949321936059 1.7359e-09 deg/d
Q 2.5862647949472 1.0578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      8203 days (22.46 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:49:30  

Additional Information
 Earth MOID = 1.01327 au 
 Jupiter MOID = 2.88246 au 
 T_jup = 3.580 
[ 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 16.1   n/a MPO436341  

80287 (1999 XZ44)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ 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
2044-Apr-30 01:43 < 00:01 Hebe 0.0405091591182797 0.0405043595231571 0.0405139588833498 6.15503025313577 6.1550302282028 2467735.571604891 0.414010479027661 273.14758801184 28.3655318522034 -29.0070431832322 105369.128903539 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 02:49:35 2019-Sep-24 02:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-27 02:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin