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109369 (2001 QA159)
Classification: Main-belt Asteroid          SPK-ID: 2109369
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0500496750481517 5.3157e-08  
a 3.136879525096938 2.9439e-08 au
q 2.979879724200636 1.6772e-07 au
i 10.57905072509986 5.778e-06 deg
node 165.3820914036302 2.3814e-05 deg
peri 209.255829932985 4.9435e-05 deg
M 102.4569352215302 4.3566e-05 deg
tp 2458422.957370107921
(2018-Oct-31.45737011)
0.00024446 TDB
period 2029.295003911625
5.56
2.8567e-05
7.821e-08
d
yr
n .1774015110203651 2.4974e-09 deg/d
Q 3.29387932599324 3.0913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:23  

Additional Information
 Earth MOID = 1.98298 au 
 Jupiter MOID = 1.97764 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456673.5 (2014-Jan-16.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04547390292002094 5.2571e-08  
q 2.994126361940665 1.6438e-07 au
tp 2456378.979770603873
(2013-Mar-27.47977060)
0.0002698 TDB
node 165.5202383447959 2.3903e-05 deg
peri 206.7902052994575 5.3575e-05 deg
i 10.55375675297338 5.7667e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:23  

Additional Information
 Jupiter MOID = 1.97764 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.763679345908232E-15 -8.515134721196011E-15 -1.209835032242945E-12 1.48183159826136E-14 -2.687352327213052E-13 6.066373096413823E-17
q -8.515134721196011E-15 2.701985471178263E-14 3.828385615637775E-12 -4.203766963364297E-14 8.633142013998007E-13 1.368376534929233E-15
tp -1.209835032242945E-12 3.828385615637775E-12 7.279083330822462E-8 -2.780921413411882E-11 1.295175451761445E-8 -1.218845372559376E-11
node 1.48183159826136E-14 -4.203766963364297E-14 -2.780921413411882E-11 5.713533197871127E-10 -5.668587797922666E-10 2.206568129362232E-11
peri -2.687352327213052E-13 8.633142013998007E-13 1.295175451761445E-8 -5.668587797922666E-10 2.870323452264489E-9 -2.391119195329331E-11
i 6.066373096413823E-17 1.368376534929233E-15 -1.218845372559376E-11 2.206568129362232E-11 -2.391119195329331E-11 3.325524045942662E-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 14.7   n/a MPO453553  
diameter diameter 6.755 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109369 (2001 QA159)          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
1982-May-13 02:27 00:02 Psych 0.0389035955035908 0.0388973839621231 0.0389098073366095 2.44575467651654 2.44575454935653 2445102.601749760 2.112141007943 352.69594569602 50.1603666710042 -29.12170139534 58135.5925628258 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:33:24 2020-Dec-18 04:33
2032-May-05 04:23 00:02 Psych 0.0374762791611054 0.0374730502337644 0.0374795086611834 2.26222801163824 2.26222786892629 2463357.682868559 2.11876475168495 289.051969636106 45.8738719828035 57.3797716867312 103174.234758869 T 21 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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