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 ]  
376897 (2001 XJ155)
Classification: Main-belt Asteroid          SPK-ID: 2376897
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731234589486083 2.3068e-07  
a 2.557874463506988 5.6942e-08 au
q 2.115046388828343 6.3249e-07 au
i 10.46225349823643 1.3345e-05 deg
node 255.0003886827954 5.923e-05 deg
peri 193.261659943283 0.00017883 deg
M 184.9685031428896 0.00016565 deg
tp 2459726.992227383850
(2022-May-27.49222738)
0.00071094 TDB
period 1494.22936188277
4.09
4.9896e-05
1.366e-07
d
yr
n .2409268678446996 8.0451e-09 deg/d
Q 3.000702538185634 6.6801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-12-14  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:59:06  

Additional Information
 Earth MOID = 1.13266 au 
 Jupiter MOID = 2.23868 au 
 T_jup = 3.392 
[ 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 17.3   n/a MPO427872  
diameter diameter 1.867 km 0.693 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

376897 (2001 XJ155)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

[ 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
1959-Jan-22 21:27 00:11 Psych 0.0110946403768571 0.0110145156179888 0.0111749018795067 4.06207657102349 4.06207630255591 2436591.393429908 11.4626336669624 4449.83174002713 541.84897306434 -26.3267925244137 1397.54487964602 T 13 CATAB v2.0e-lin.ifort 2019-Jul-13 15:59:08 2019-Jul-13 15:59

Alternate Designations
 2001 XJ155 = 2005 WA55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-06 08:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin