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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
(2018-Sep-27.91708296)
0.00050964 TDB
period 1254.085231464356
3.43
7.2824e-06
1.994e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456791.5 (2014-May-14.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01385205148082847 3.8569e-08  
q 2.24522324419026 8.5806e-08 au
tp 2457136.786848982107
(2015-Apr-24.28684898)
0.0005221 TDB
node 207.3870046186512 3.8207e-05 deg
peri 18.99534753046292 0.00015469 deg
i 5.679058926278067 4.4144e-06 deg
  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
 Jupiter MOID = 2.6543 au 
 T_jup = 3.602 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.487569146917779E-15 -3.29348116747183E-15 -4.214503081639074E-12 -7.70575354892135E-15 -1.222313170983471E-12 2.792348781271668E-16
q -3.29348116747183E-15 7.362753143455742E-15 9.146999389146037E-12 1.719607936901398E-14 2.645890961361906E-12 -6.647352065051943E-16
tp -4.214503081639074E-12 9.146999389146037E-12 2.725863670724172E-7 6.343933154569909E-11 7.827124407111645E-8 -5.589960485381647E-12
node -7.70575354892135E-15 1.719607936901398E-14 6.343933154569909E-11 1.459757864724787E-9 -1.433665217582157E-9 -2.725559285405398E-11
peri -1.222313170983471E-12 2.645890961361906E-12 7.827124407111645E-8 -1.433665217582157E-9 2.392867686283842E-8 2.551103419957801E-11
i 2.792348781271668E-16 -6.647352065051943E-16 -5.589960485381647E-12 -2.725559285405398E-11 2.551103419957801E-11 1.94868454605235E-11

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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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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