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109257 (2001 QR105)
Classification: Main-belt Asteroid          SPK-ID: 2109257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244123888325225 4.5065e-08  
a 2.604458882674795 1.3948e-08 au
q 2.019986043197662 1.1407e-07 au
i 3.378557262749086 5.1039e-06 deg
node 202.3376666254551 6.7222e-05 deg
peri 193.5222926777574 6.8317e-05 deg
M 157.1276786008315 1.6311e-05 deg
tp 2458330.422741786278
(2018-Jul-30.92274179)
6.5111e-05 TDB
period 1535.234371849642
4.20
1.2332e-05
3.376e-08
d
yr
n .2344918838459004 1.8837e-09 deg/d
Q 3.188931722151928 1.7078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      7712 days (21.11 yr)  
   first obs. used      1999-04-15  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:13:08  

Additional Information
 Earth MOID = 1.02707 au 
 Jupiter MOID = 2.24174 au 
 T_jup = 3.374 
[ 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 16.1   n/a MPO469116  

109257 (2001 QR105)          Discovered 2001-Aug-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2009-Jul-26 18:34 < 00:01 Thisb 0.0408233946838805 0.0408224749055839 0.0408243144622645 4.87317809297422 4.87317805870112 2455039.273713446 0.573289564123992 50.6243851689477 45.4092502735496 73.5829578745002 133384.338682979 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 19:13:09 2020-Nov-12 19:13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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