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JPL Small-Body Database Browser
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25459 (1999 XL14)
Classification: Main-belt Asteroid          SPK-ID: 2025459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219379709945112 4.1725e-08  
a 2.994703198508665 1.6539e-08 au
q 2.629535166751746 1.2305e-07 au
i 10.98018938853135 3.676e-06 deg
node 135.7264385181918 2.0971e-05 deg
peri 221.1446494001484 2.5334e-05 deg
M 128.4676340432733 1.4507e-05 deg
tp 2458325.007810665413
7.5706e-05 TDB
period 1892.906255894298
n .1901837446408138 1.5755e-09 deg/d
Q 3.359871230265585 1.8556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1943  
   data-arc span      20418 days (55.90 yr)  
   first obs. used      1964-03-11  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:28:54  

Additional Information
 Earth MOID = 1.63498 au 
 Jupiter MOID = 2.07942 au 
 T_jup = 3.216 
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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 13.1   n/a MPO279780  
diameter diameter 8.648 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 22.298 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.215   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

25459 (1999 XL14)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
1901-Feb-08 17:40 00:04 Thisb 0.0119143191366558 0.0119024617858744 0.0119261901515474 4.45699446637344 4.4569943379739 2415424.236343331 3.50496882341147 869.06554850256 30.8525576567767 -47.1596256063572 42360.4552215023 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:29:07 2020-Feb-23 00:29

Alternate Designations
 1999 XL14 = 1964 ER = 1998 XZ90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Mar-29 00:17 UT
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