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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06370190557838816 3.8202e-08  
a 2.362842086705774 1.2351e-08 au
q 2.212324543201801 8.7646e-08 au
i 5.883581133896845 5.8196e-06 deg
node 316.5195511014244 4.0282e-05 deg
peri 271.3779515089425 6.2329e-05 deg
M 158.1847286302796 4.7628e-05 deg
tp 2458417.575207610575
(2018-Oct-26.07520761)
0.00017558 TDB
period 1326.632014843077
3.63
1.0402e-05
2.848e-08
d
yr
n .2713638717987545 2.1277e-09 deg/d
Q 2.513359630209747 1.3137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      7568 days (20.72 yr)  
   first obs. used      2000-02-08  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:12:33  

Additional Information
 Earth MOID = 1.21171 au 
 Jupiter MOID = 2.49423 au 
 T_jup = 3.540 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457060.5 (2015-Feb-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06303230725419415 3.8176e-08  
q 2.214009045676398 8.7537e-08 au
tp 2457091.963091066687
(2015-Mar-10.46309107)
0.00017824 TDB
node 316.5839743401471 4.0298e-05 deg
peri 271.754357455909 6.2742e-05 deg
i 5.882105482128647 5.8187e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      7568 days (20.72 yr)  
   first obs. used      2000-02-08  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:12:33  

Additional Information
 Jupiter MOID = 2.49423 au 
 T_jup = 3.540 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.457443377824932E-15 -3.314705687437811E-15 -1.471484454896032E-12 -9.240869984772525E-16 -4.082868948666812E-13 1.091612232169021E-15
q -3.314705687437811E-15 7.662656543366635E-15 3.272877013088477E-12 8.61613619411744E-16 9.082857893076575E-13 -2.340320023982566E-15
tp -1.471484454896032E-12 3.272877013088477E-12 3.176996631827814E-8 1.839440735536852E-11 8.583737217013356E-9 7.127262145253536E-13
node -9.240869984772525E-16 8.61613619411744E-16 1.839440735536852E-11 1.623912304091581E-9 -1.609778192402866E-9 4.243847542754853E-11
peri -4.082868948666812E-13 9.082857893076575E-13 8.583737217013356E-9 -1.609778192402866E-9 3.936504685845792E-9 -4.205100121546942E-11
i 1.091612232169021E-15 -2.340320023982566E-15 7.127262145253536E-13 4.243847542754853E-11 -4.205100121546942E-11 3.385717178105908E-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. 2019-August); 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 17 CATAB v2.0f-lin.ifort 2020-Nov-12 19:12:34 2020-Nov-12 19:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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