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193855 (2001 QZ120)
Classification: Main-belt Asteroid          SPK-ID: 2193855
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268413825089669 6.2137e-08  
a 2.263267005606624 1.1835e-08 au
q 1.97619108962855 1.4038e-07 au
i 5.957614091107962 7.497e-06 deg
node 347.22671010 5.2561e-05 deg
peri 322.8081700312626 5.8061e-05 deg
M 77.45228179586613 2.4496e-05 deg
tp 2458332.932210139180
(2018-Aug-02.43221014)
8.4408e-05 TDB
period 1243.661285587024
3.40
9.7553e-06
2.671e-08
d
yr
n .289467883395659 2.2706e-09 deg/d
Q 2.550342921584698 1.3337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      7878 days (21.57 yr)  
   first obs. used      1997-04-12  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64768  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:29:48  

Additional Information
 Earth MOID = .965091 au 
 Jupiter MOID = 2.69402 au 
 T_jup = 3.600 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456930.5 (2014-Sep-30.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1276304737537438 6.2247e-08  
q 1.974149653467042 1.4078e-07 au
tp 2457089.754993226436
(2015-Mar-08.25499323)
8.3437e-05 TDB
node 347.26287909325 5.2507e-05 deg
peri 322.8967156752913 5.7935e-05 deg
i 5.961869626357638 7.5007e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      7878 days (21.57 yr)  
   first obs. used      1997-04-12  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64768  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:29:48  

Additional Information
 Jupiter MOID = 2.69402 au 
 T_jup = 3.600 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.874663084043751E-15 -8.739407752798322E-15 1.642332749647559E-12 -3.26687145093374E-14 4.642900847975511E-13 -1.067704205670299E-14
q -8.739407752798322E-15 1.981854669179613E-14 -3.746317816117728E-12 7.399994805110599E-14 -1.064533799369909E-12 2.448239715712317E-14
tp 1.642332749647559E-12 -3.746317816117728E-12 6.961685996800108E-9 3.27244994514177E-12 2.063525983099562E-9 -1.276699507514145E-11
node -3.26687145093374E-14 7.399994805110599E-14 3.27244994514177E-12 2.756986272903488E-9 -2.739146568391797E-9 -7.810105209130823E-12
peri 4.642900847975511E-13 -1.064533799369909E-12 2.063525983099562E-9 -2.739146568391797E-9 3.356426902438832E-9 4.038215393876113E-12
i -1.067704205670299E-14 2.448239715712317E-14 -1.276699507514145E-11 -7.810105209130823E-12 4.038215393876113E-12 5.626052464693526E-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 17.0   n/a MPO360008  

193855 (2001 QZ120)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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