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109362 (2001 QO157)
Classification: Main-belt Asteroid          SPK-ID: 2109362
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06370190638647406 3.8157e-08  
a 2.362842087021357 1.2331e-08 au
q 2.212324541587901 8.7567e-08 au
i 5.883581084499188 5.8077e-06 deg
node 316.5195509418288 4.0266e-05 deg
peri 271.3779502695014 6.2238e-05 deg
M 158.184729865889 4.7545e-05 deg
tp 2458417.575202940460
(2018-Oct-26.07520294)		 0.00017526 TDB
period 1326.632015108855
3.63		 1.0385e-05
2.843e-08		 d
yr
n .2713638717443893 2.1242e-09 deg/d
Q 2.513359632454812 1.3116e-08 au
   Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      2000-02-08  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:23  

Additional Information
 Earth MOID = 1.21171 au 
 Jupiter MOID = 2.49423 au 
 T_jup = 3.540 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457063.5 (2015-Feb-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06303327737839032 3.8133e-08  
q 2.214008812593216 8.7461e-08 au
tp 2457091.964892219743
(2015-Mar-10.46489222)		 0.00017788 TDB
node 316.5839405460189 4.0282e-05 deg
peri 271.7549515215185 6.2648e-05 deg
i 5.882104979979411 5.8069e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      2000-02-08  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:23  

Additional Information
 Jupiter MOID = 2.49423 au 
 T_jup = 3.540 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.454110904797732E-15 -3.308063494635011E-15 -1.450759086770233E-12 -8.700117661517669E-16 -4.024662198971568E-13 1.09627900539248E-15
q -3.308063494635011E-15 7.649419702650738E-15 3.231381243776062E-12 7.423868934985258E-16 8.966470871034797E-13 -2.353117402254703E-15
tp -1.450759086770233E-12 3.231381243776062E-12 3.163970694915355E-8 1.839849655873403E-11 8.546820432132714E-9 7.961156040916879E-13
node -8.700117661517669E-16 7.423868934985258E-16 1.839849655873403E-11 1.622626805666174E-9 -1.608499543809727E-9 4.201820235729763E-11
peri -4.024662198971568E-13 8.966470871034797E-13 8.546820432132714E-9 -1.608499543809727E-9 3.924772611427253E-9 -4.160971363028062E-11
i 1.09627900539248E-15 -2.353117402254703E-15 7.961156040916879E-13 4.201820235729763E-11 -4.160971363028062E-11 3.371967110026361E-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 15.9   n/a MPO439734  
rotation period rot_per 194.772 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

109362 (2001 QO157)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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