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JPL Small-Body Database Browser
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109321 (2001 QS139)
Classification: Main-belt Asteroid          SPK-ID: 2109321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08109189755958945 4.3081e-08  
a 2.59605985216443 1.6575e-08 au
q 2.385540432574149 1.162e-07 au
i 14.29769753021267 4.8709e-06 deg
node 355.2117269089895 1.636e-05 deg
peri 350.0515859806191 3.0795e-05 deg
M 116.2193057071421 2.7605e-05 deg
tp 2458107.273668266411
(2017-Dec-19.77366827)
0.00011587 TDB
period 1527.813974999339
4.18
1.4632e-05
4.006e-08
d
yr
n .2356307809006366 2.2567e-09 deg/d
Q 2.806579271754711 1.792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      7319 days (20.04 yr)  
   first obs. used      1999-02-18  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58149  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:27:40  

Additional Information
 Earth MOID = 1.37929 au 
 Jupiter MOID = 2.57128 au 
 T_jup = 3.369 
[ 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 14.5   n/a MPO469117  

109321 (2001 QS139)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2041-May-13 23:32 00:01 Iris 0.0484510006025052 0.0484463954367264 0.0484556065993163 5.59183986708245 5.59183984586391 2466653.480647453 1.39362409259085 395.14786068141 41.4193092218846 54.924157021685 143559.885866896 T 25 CATAB v2.0e-lin.ifort 2019-Jul-13 07:27:46 2019-Jul-13 07:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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