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 ]  
71015 (1999 XM55)
Classification: Main-belt Asteroid          SPK-ID: 2071015
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03248670307054 4.9993e-08  
a 2.79562083638255 1.9667e-08 au
q 2.704800332373175 1.4387e-07 au
i 4.0041395362861 4.7507e-06 deg
node 66.77299777873249 8.2296e-05 deg
peri 75.4255996649357 0.00012024 deg
M 343.2226655367461 8.6359e-05 deg
tp 2458680.067606046564
(2019-Jul-15.56760605)
0.00040959 TDB
period 1707.323546508578
4.67
1.8016e-05
4.933e-08
d
yr
n .2108563433897391 2.225e-09 deg/d
Q 2.886441340391924 2.0306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      796  
   data-arc span      7465 days (20.44 yr)  
   first obs. used      1998-08-25  
   last obs. used      2019-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54717  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:39:22  

Additional Information
 Earth MOID = 1.72117 au 
 Jupiter MOID = 2.10132 au 
 T_jup = 3.323 
[ 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 14.8   n/a MPO324923  
diameter diameter 4.128 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.164   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71015 (1999 XM55)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/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
2117-Nov-05 21:28 00:05 Hebe 0.011862207889799 0.0118476657212727 0.0118767729296766 5.36793331657928 5.36793321894891 2494587.394132941 4.69273550921564 1096.82473753079 44.6759375510859 48.6450926028194 29822.3193437353 T 20 CATAB v2.0e-lin.ifort 2019-Jul-13 06:39:28 2019-Jul-13 06:39

Alternate Designations
 1999 XM55 = 1998 QN63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin