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193873 (2001 QX157)
Classification: Main-belt Asteroid          SPK-ID: 2193873
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720097321856535 3.2889e-08  
a 2.198260724870323 9.0126e-09 au
q 1.820138486311138 7.4576e-08 au
i 1.84449327685548 5.47e-06 deg
node 189.1887199785197 0.00011388 deg
peri 59.46952807138617 0.00011544 deg
M 339.0085021460466 1.6469e-05 deg
tp 2459069.915771682556
(2020-Aug-08.41577168)
5.4428e-05 TDB
period 1190.466634614813
3.26
7.3211e-06
2.004e-08
d
yr
n .3024024273611678 1.8597e-09 deg/d
Q 2.576382963429508 1.0563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56695  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:58:17  

Additional Information
 Earth MOID = .807147 au 
 Jupiter MOID = 2.45095 au 
 T_jup = 3.647 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457015.5 (2014-Dec-24.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721972193828685 3.2819e-08  
q 1.819851325263742 7.4446e-08 au
tp 2456688.631626862532
(2014-Jan-31.13162686)
5.7325e-05 TDB
node 189.2066850176335 0.00011394 deg
peri 59.4408581756277 0.0001155 deg
i 1.843549410915544 5.4704e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56695  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:58:17  

Additional Information
 Jupiter MOID = 2.45095 au 
 T_jup = 3.647 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.077082372890815E-15 -2.43169843406968E-15 -3.900974576777221E-13 3.72331893072775E-15 -1.442337232985099E-13 3.482124683897021E-16
q -2.43169843406968E-15 5.542194265944384E-15 7.179697917528077E-13 -7.982295451216149E-15 2.786672899674771E-13 -6.207975289064692E-16
tp -3.900974576777221E-13 7.179697917528077E-13 3.286191831581558E-9 -3.065043296859183E-11 1.08991913605534E-9 -1.737917253689959E-12
node 3.72331893072775E-15 -7.982295451216149E-15 -3.065043296859183E-11 1.298267767255068E-8 -1.298548635454487E-8 -1.523798815594223E-10
peri -1.442337232985099E-13 2.786672899674771E-13 1.08991913605534E-9 -1.298548635454487E-8 1.333977046680031E-8 1.517580684059124E-10
i 3.482124683897021E-16 -6.207975289064692E-16 -1.737917253689959E-12 -1.523798815594223E-10 1.517580684059124E-10 2.992532140717087E-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 16.9   n/a MPO459867  

193873 (2001 QX157)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
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
2009-Jun-09 18:47 00:02 Vesta 0.0220251322617588 0.0220243385583358 0.0220259259927887 2.44207176529684 2.44206955313019 2454992.282676276 1.5685969339655 95.8061891826287 35.1435728836232 -78.8465410554988 91196.2678723399 T 15 CATAB v2.0f-lin.ifort 2020-May-21 05:58:32 2020-May-21 05:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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