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JPL Small-Body Database Browser
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193878 (2001 QT178)
Classification: Main-belt Asteroid          SPK-ID: 2193878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2517898091204774 4.1578e-08  
a 2.28165047704523 7.9856e-09 au
q 1.707154138950365 9.7585e-08 au
i 3.086181768608409 5.1493e-06 deg
node 163.366926075423 7.2341e-05 deg
peri 214.5815880905239 7.2969e-05 deg
M 150.7705949001383 1.1621e-05 deg
tp 2458473.286832111171
(2018-Dec-20.78683211)
3.895e-05 TDB
period 1258.844541707146
3.45
6.6088e-06
1.809e-08
d
yr
n .2859765348879349 1.5013e-09 deg/d
Q 2.856146815140094 9.9963e-09 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      8788 days (24.06 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:58:17  

Additional Information
 Earth MOID = .710011 au 
 Jupiter MOID = 2.6055 au 
 T_jup = 3.560 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .251526519982256 4.1782e-08  
q 1.708009167866211 9.8155e-08 au
tp 2457211.947655407450
(2015-Jul-08.44765541)
3.5442e-05 TDB
node 163.4053673855487 7.2237e-05 deg
peri 214.1565559730918 7.2868e-05 deg
i 3.086231512781576 5.1562e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      8788 days (24.06 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:58:17  

Additional Information
 Jupiter MOID = 2.6055 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.745715298377863E-15 -4.094805903152174E-15 -6.261745518572151E-13 -6.573169390876501E-15 -1.792835712301281E-13 -1.381160783650954E-15
q -4.094805903152174E-15 9.634469340195185E-15 1.533409395966779E-12 1.571307496987211E-14 4.365323204859774E-13 3.323176632624433E-15
tp -6.261745518572151E-13 1.533409395966779E-12 1.256134740217E-9 9.869811953196244E-12 3.502579475773104E-10 4.042083047380968E-13
node -6.573169390876501E-15 1.571307496987211E-14 9.869811953196244E-12 5.218153518652217E-9 -5.207257894620171E-9 -5.63828493675495E-11
peri -1.792835712301281E-13 4.365323204859774E-13 3.502579475773104E-10 -5.207257894620171E-9 5.309684220238081E-9 5.64257265536121E-11
i -1.381160783650954E-15 3.323176632624433E-15 4.042083047380968E-13 -5.63828493675495E-11 5.64257265536121E-11 2.658602988694508E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO299991  

193878 (2001 QT178)          Discovered 2001-Aug-27 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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