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(2001 QL169)
Classification: Mars-crossing Asteroid          SPK-ID: 3102859
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .500981572530161 1.6704e-06  
a 3.147161052824667 1.0082e-05 au
q 1.570491359574888 9.7978e-06 au
i 13.20946136697328 7.4373e-05 deg
node 107.7926787042759 0.00038773 deg
peri 216.8460949094197 0.0011815 deg
M 210.3420765855969 0.0018505 deg
tp 2460244.262287272257
(2023-Oct-26.76228727)
0.014555 TDB
period 2039.280089253467
5.58
0.0097993
2.683e-05
d
yr
n .1765328862362343 8.4829e-07 deg/d
Q 4.723830746074445 1.5133e-05 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      4089 days (11.20 yr)  
   first obs. used      2001-08-03  
   last obs. used      2012-10-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .64184  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:08:06  

Additional Information
 Earth MOID = .57859 au 
 Jupiter MOID = .814431 au 
 T_jup = 2.964 
[ hide covariance matrix ]
Orbital Elements at Epoch 2453118.5 (2004-Apr-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5043521110799825 2.4321e-06  
q 1.544429401388144 7.5519e-06 au
tp 2454116.950969364084
(2007-Jan-16.45096936)
0.001187 TDB
node 111.9184136218588 0.00027604 deg
peri 210.6558126769139 0.0011424 deg
i 14.38225223610794 6.5331e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      4089 days (11.20 yr)  
   first obs. used      2001-08-03  
   last obs. used      2012-10-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .64184  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:08:06  

Additional Information
 Jupiter MOID = .814431 au 
 T_jup = 2.964 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.915162319308502E-12 -1.836696282956013E-11 -2.455552398366172E-9 2.86782417776611E-10 -2.456867866980509E-9 -5.02515981255863E-11
q -1.836696282956013E-11 5.70318657619122E-11 7.60429867737545E-9 -8.871738776384708E-10 7.612460390424407E-9 1.574620497991501E-10
tp -2.455552398366172E-9 7.60429867737545E-9 1.409007440823448E-6 -1.736261634638935E-7 1.320834502828875E-6 -4.099419736279509E-9
node 2.86782417776611E-10 -8.871738776384708E-10 -1.736261634638935E-7 7.619871618758472E-8 -2.14562504936394E-7 1.147820409017953E-8
peri -2.456867866980509E-9 7.612460390424407E-9 1.320834502828875E-6 -2.14562504936394E-7 1.305095994677121E-6 -8.588802822014855E-9
i -5.02515981255863E-11 1.574620497991501E-10 -4.099419736279509E-9 1.147820409017953E-8 -8.588802822014855E-9 4.268200814247351E-9

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO241841  
diameter diameter 0.72 km 0.1 Fernandez et al. (2005) Astron.J. 130:308-318  
geometric albedo albedo 0.107   0.033 Fernandez et al. (2005) Astron.J. 130:308-318  

[ hide close-approach data ]
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
1943-Sep-10 16:07 00:41 Jupiter 0.740796659034627 0.740731486773609 0.740861836247292 4.20021493702825 3.91854786446823 2430978.171608725 41.462321449322 4545.27481719309 565.957999100119 44.3150895707211 156189.711166018 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
1955-Aug-07 19:00 00:19 Jupiter 1.82776120553623 1.82767450723083 1.82784790387405 6.83870880157799 6.77060532938833 2435327.291824045 18.5800793186991 4340.66432309436 336.442270204252 -0.410179996877076 79382.5160301783 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2014-Dec-02 21:40 00:32 Jupiter 0.772644198238361 0.77260900700809 0.772679391562067 4.13252558146247 3.85813924171104 2456994.402956421 31.5689574381454 2830.69599447502 549.592368688512 39.4635951760889 241994.671566607 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2026-Dec-05 22:15 00:12 Jupiter 1.6464601010326 1.64591947143158 1.64700073430163 6.18557545893491 6.10183926428863 2461380.426982292 12.0291729182908 27238.693510532 183.174477596345 -14.6928299289385 148860.442997885 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2086-Mar-22 18:36 00:52 Jupiter 1.00115796678388 1.00055681058715 1.00175909664073 4.93380527345924 4.75923826185712 2483037.274745618 52.3814690247612 28813.9888939959 470.082752186857 -13.6217098911106 41496.5986756737 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2098-Feb-27 16:28 02:58 Jupiter 1.0392995618926 1.0385784062721 1.04002069439873 3.98773570436458 3.77783652504248 2487397.186341224 178.083053692361 35037.1758497455 441.42987901222 -20.0316128072097 51038.0933535008 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2157-Sep-01 19:31 00:55 Jupiter 1.70912350173061 1.70843638873599 1.7098106240404 7.10037669969468 7.0302326863275 2509132.313397239 55.3987298778491 34841.7854245657 427.073856153894 -14.8721331785396 95715.6308893153 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2169-Apr-27 11:11 01:19 Jupiter 0.849938061371787 0.849807751704446 0.85006838413133 3.57247991900193 3.28168758260357 2513387.966212354 78.5883865666103 8609.0917891632 384.708975852751 -31.3239063407183 868337.075712568 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
2181-May-17 12:30 00:41 Jupiter 1.98216351664309 1.98154315942404 1.9827838876683 7.6702692498753 7.61435394034296 2517791.020489492 41.1869572447148 32023.6744665709 522.650608924943 -17.2832267997613 128738.886148768 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:08:06 2021-Apr-14 21:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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