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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 
[ 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 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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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
2023-Nov-21 03:37 00:01 Thisb 0.0238101843177945 0.0238079336691421 0.0238124350733827 2.65232428555475 2.65232417758915 2460269.650438874 1.2042719797158 141.573287658639 44.062600931506 39.9839553401215 55334.9455490396 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 04:33:24 2020-Dec-18 04:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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