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JPL Small-Body Database Browser
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193912 (2001 QT255)
Classification: Main-belt Asteroid          SPK-ID: 2193912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .201894263984056 4.0165e-08  
a 2.28633213490605 1.2881e-08 au
q 1.824734791306098 8.9629e-08 au
i 6.716530901639766 7.6247e-06 deg
node 197.7116895720528 3.55e-05 deg
peri 81.81943177886394 4.0871e-05 deg
M 78.99192247041628 2.2434e-05 deg
tp 2458323.431221240124
(2018-Jul-23.93122124)
7.7557e-05 TDB
period 1262.721012910039
3.46
1.0671e-05
2.922e-08
d
yr
n .285098605566365 2.4094e-09 deg/d
Q 2.747929478506002 1.5482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      9730 days (26.64 yr)  
   first obs. used      1991-11-02  
   last obs. used      2018-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:06:10  

Additional Information
 Earth MOID = .822984 au 
 Jupiter MOID = 2.4104 au 
 T_jup = 3.565 
[ 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 16.8   n/a MPO454348  

193912 (2001 QT255)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ 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
2110-Dec-05 22:15 00:01 Iris 0.0499988980959675 0.0499944919616297 0.0500033114318612 7.82645571874103 7.82645570405016 2492060.427389491 1.03200571063596 1057.93355780949 89.0809073848295 79.0083728505484 82423.539300333 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 13:06:12 2019-Jul-13 13:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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