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 ]  
26421 (1999 XP113)
Classification: Main-belt Asteroid          SPK-ID: 2026421
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186412183935569 1.2079e-08  
a 2.550948053624217 9.4635e-09 au
q 2.248300468483567 3.3288e-08 au
i 13.15245882253486 5.2475e-07 deg
node 324.2094900182294 2.2236e-06 deg
peri 174.6302583281075 7.5025e-06 deg
M 349.0097898617925 8.5408e-06 deg
tp 2459245.931214297575
(2021-Jan-31.43121430)
3.5319e-05 TDB
period 1488.164188077534
4.07
8.2811e-06
2.267e-08
d
yr
n .2419087913041782 1.3461e-09 deg/d
Q 2.853595638764867 1.0586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2075  
   data-arc span      14033 days (38.42 yr)  
   first obs. used      1982-10-12  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:18:40  

Additional Information
 Earth MOID = 1.26157 au 
 Jupiter MOID = 2.17364 au 
 T_jup = 3.394 
[ 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 13.68   n/a E2021B10  
diameter diameter 5.463 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.320 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Zeigler, K.; Banshaw, B.; Gass, J. (2017) Minor Planet Bull. 44, 259-260.]
geometric albedo albedo 0.258   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26421 (1999 XP113)          Discovered 1999-Dec-11 by LINEAR at Socorro
Reference: 20010705/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
2005-Jan-15 22:51 < 00:01 Pallas 0.0345774242176157 0.0345766183502902 0.03457823009668 16.9326069825761 16.9326068193106 2453386.452264886 0.139938746278778 75.0940071252882 34.7794931972339 72.4071013038917 143258.557418809 T 32 CATAB v2.0f-lin.ifort 2021-Apr-13 05:19:52 2021-Apr-13 05:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 03:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin