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135147 (2001 QS217)
Classification: Main-belt Asteroid          SPK-ID: 2135147
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676375715777875 2.7813e-08  
a 2.54380520513214 1.0904e-08 au
q 2.117367877976853 6.8764e-08 au
i 2.40415741850327 5.393e-06 deg
node 135.9415235357346 7.1524e-05 deg
peri 270.4180677144911 7.4085e-05 deg
M 275.7435094883958 1.9696e-05 deg
tp 2459743.336719053003
(2022-Jun-12.83671905)
8.2216e-05 TDB
period 1481.918106260132
4.06
9.5284e-06
2.609e-08
d
yr
n .2429284037216606 1.562e-09 deg/d
Q 2.970242532287428 1.2732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      9771 days (26.75 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55686  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:11:43  

Additional Information
 Earth MOID = 1.12804 au 
 Jupiter MOID = 2.41685 au 
 T_jup = 3.423 
[ 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 15.96   n/a E2021B55  
rotation period rot_per 5.93 h n/a LCDB (Rev. 2020-October); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

135147 (2001 QS217)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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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
2126-Oct-23 12:03 00:01 Eunom 0.0431656625675252 0.0431545056845463 0.0431768254559037 4.45365829161178 4.45365821859232 2497861.001803590 1.26786184914285 979.839730322558 59.0685807075523 -55.576139907752 90177.305054577 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 18:11:45 2021-Apr-13 18:11
2184-Mar-03 09:58 < 00:01 Juno 0.0345202552602656 0.0344834209000021 0.0345570896193154 4.50935747683385 4.50935739867876 2518811.915113915 0.594969391871912 1835.51013237137 52.1662693550009 0.422707880729703 2903.85828610747 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 18:11:45 2021-Apr-13 18:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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