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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456727.5 (2014-Mar-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018250725474475 4.0095e-08  
q 1.824814950760453 8.9403e-08 au
tp 2457061.450407628625
(2015-Feb-07.95040763)
7.3321e-05 TDB
node 197.7219489577843 3.5498e-05 deg
peri 81.98804194693773 4.0892e-05 deg
i 6.716290327939787 7.6258e-06 deg
  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
 Jupiter MOID = 2.4104 au 
 T_jup = 3.565 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.607620874829109E-15 -3.562561593139909E-15 5.612631991345585E-13 8.84434455829785E-15 7.284144626019546E-14 3.618226759429585E-16
q -3.562561593139909E-15 7.992829054739683E-15 -1.024700508279859E-12 -1.982437620700981E-14 -1.106385636462835E-13 2.524031751243268E-16
tp 5.612631991345585E-13 -1.024700508279859E-12 5.376013378938102E-9 1.580096786288236E-11 1.487176300494811E-9 3.061378495052381E-12
node 8.84434455829785E-15 -1.982437620700981E-14 1.580096786288236E-11 1.260086684484965E-9 -1.246569680887606E-9 -3.259296381776831E-11
peri 7.284144626019546E-14 -1.106385636462835E-13 1.487176300494811E-9 -1.246569680887606E-9 1.672146411634944E-9 3.32071412178851E-11
i 3.618226759429585E-16 2.524031751243268E-16 3.061378495052381E-12 -3.259296381776831E-11 3.32071412178851E-11 5.815293188474463E-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 16.8   n/a MPO454348  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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