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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720097318593173 3.2749e-08  
a 2.198260724691642 8.859e-09 au
q 1.820138486880564 7.4386e-08 au
i 1.84449474440525 5.2361e-06 deg
node 189.1886812880943 0.00010737 deg
peri 59.46956648513427 0.00010904 deg
M 339.0085025376873 1.61e-05 deg
tp 2459069.915770378994
(2020-Aug-08.41577038)
5.319e-05 TDB
period 1190.466634469666
3.26
7.1964e-06
1.97e-08
d
yr
n .3024024273980382 1.828e-09 deg/d
Q 2.576382962502719 1.0383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      6867 days (18.80 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:24:58  

Additional Information
 Earth MOID = .807147 au 
 Jupiter MOID = 2.45095 au 
 T_jup = 3.647 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457170.5 (2015-May-28.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722862714419135 3.2687e-08  
q 1.819430076140299 7.4258e-08 au
tp 2456688.597288906558
(2014-Jan-31.09728891)
5.659e-05 TDB
node 189.2084978757818 0.00010742 deg
peri 59.405921026479 0.00010908 deg
i 1.843726422925162 5.2365e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      6867 days (18.80 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:24:58  

Additional Information
 Jupiter MOID = 2.45095 au 
 T_jup = 3.647 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.068452652379028E-15 -2.416321106247571E-15 -4.165199977328393E-13 1.044478281226549E-14 -1.580650262854286E-13 8.80884199341213E-17
q -2.416321106247571E-15 5.514320073392692E-15 7.638320135304479E-13 -2.315888987654422E-14 3.061792248816815E-13 -1.505862630048301E-17
tp -4.165199977328393E-13 7.638320135304479E-13 3.202439952187719E-9 -4.229822948313401E-11 1.079015380998505E-9 -1.167263799520869E-12
node 1.044478281226549E-14 -2.315888987654422E-14 -4.229822948313401E-11 1.153884861385117E-8 -1.154620140802405E-8 -9.290560242728351E-11
peri -1.580650262854286E-13 3.061792248816815E-13 1.079015380998505E-9 -1.154620140802405E-8 1.189896525119852E-8 9.249635874932235E-11
i 8.80884199341213E-17 -1.505862630048301E-17 -1.167263799520869E-12 -9.290560242728351E-11 9.249635874932235E-11 2.742139163887136E-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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 06:24:59 2020-Nov-12 06:25
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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