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344241 (2001 SQ145)
Classification: Main-belt Asteroid          SPK-ID: 2344241
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526609724746941 6.745e-08  
a 3.095022666851516 3.7702e-08 au
q 2.622533496698742 2.0339e-07 au
i 12.51795038549252 7.5002e-06 deg
node 193.6114926115692 2.7075e-05 deg
peri 159.1787729945797 3.5163e-05 deg
M 158.2016130087632 2.5742e-05 deg
tp 2458126.517806746158
(2018-Jan-08.01780675)
0.00013254 TDB
period 1988.814042963991
5.45
3.634e-05
9.949e-08
d
yr
n .1810123984560572 3.3075e-09 deg/d
Q 3.567511837004289 4.3457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6711 days (18.37 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56505  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:01:10  

Additional Information
 Earth MOID = 1.62242 au 
 Jupiter MOID = 1.9211 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457626.5 (2016-Aug-26.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516759651180392 6.7494e-08  
q 2.625137272037843 2.0317e-07 au
tp 2458126.621155422104
(2018-Jan-08.12115542)
0.00013324 TDB
node 193.636756200612 2.7072e-05 deg
peri 159.2662771607393 3.5249e-05 deg
i 12.51804353967788 7.5004e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6711 days (18.37 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56505  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:01:10  

Additional Information
 Jupiter MOID = 1.9211 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.555506306723465E-15 -1.355382707884044E-14 2.73136616496339E-12 3.51516243938854E-14 3.132996090704068E-13 5.361142345966998E-15
q -1.355382707884044E-14 4.127943991578151E-14 -6.033383754370977E-12 -8.77360692667191E-14 -6.323627980767643E-13 -1.373386657167732E-14
tp 2.73136616496339E-12 -6.033383754370977E-12 1.77535675723177E-8 3.622657368631111E-11 3.01799896747314E-9 -1.799069243962903E-11
node 3.51516243938854E-14 -8.77360692667191E-14 3.622657368631111E-11 7.329103395206839E-10 -7.097422215649209E-10 4.663388890397081E-12
peri 3.132996090704068E-13 -6.323627980767643E-13 3.01799896747314E-9 -7.097422215649209E-10 1.242480244428711E-9 -7.746479438091487E-12
i 5.361142345966998E-15 -1.373386657167732E-14 -1.799069243962903E-11 4.663388890397081E-12 -7.746479438091487E-12 5.625643690164781E-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 15.9   n/a MPO471577  

344241 (2001 SQ145)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2001 SQ145 = 2012 RU17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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