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JPL Small-Body Database Browser
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47324 (1999 XN22)
Classification: Main-belt Asteroid          SPK-ID: 2047324
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01416162752200367 3.8545e-08  
a 2.27589602729237 8.8107e-09 au
q 2.243665635475048 8.5793e-08 au
i 5.679274565628961 4.4137e-06 deg
node 207.3348774422835 3.8219e-05 deg
peri 18.55399282924976 0.00015153 deg
M 175.4185797058426 0.00014622 deg
tp 2458389.417082962360
0.00050964 TDB
period 1254.085231464356
n .2870618287878561 1.667e-09 deg/d
Q 2.308126419109692 8.9355e-09 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      8861 days (24.26 yr)  
   first obs. used      1995-09-02  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53467  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:45:21  

Additional Information
 Earth MOID = 1.23485 au 
 Jupiter MOID = 2.6543 au 
 T_jup = 3.602 
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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 15.5   n/a MPO324733  
rotation period rot_per 5.201 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.]

47324 (1999 XN22)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20020921/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
2059-Feb-14 23:30 < 00:01 Iris 0.0460467219902871 0.0460398281145653 0.046053616195775 4.80735934433445 4.8073593183647 2473139.479194832 0.372199198384132 395.345462626792 39.5659767728829 -29.8008936936426 87802.1269770203 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 08:45:32 2020-Feb-23 08:45

Alternate Designations
 1999 XN22 = 1999 VH173 = 2001 FR18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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