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101270 (1998 SQ111)
Classification: Main-belt Asteroid          SPK-ID: 2101270
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1492282439256586 5.3054e-08  
a 2.268652648707069 7.9194e-09 au
q 1.930105597863219 1.1998e-07 au
i 8.051123130051382 4.7464e-06 deg
node 17.62397762469098 2.805e-05 deg
peri 353.5303711803567 3.2933e-05 deg
M 122.8689364183554 1.5735e-05 deg
tp 2458574.519190150597
(2019-Apr-01.01919015)
5.3866e-05 TDB
period 1248.10302763291
3.42
6.5353e-06
1.789e-08
d
yr
n .2884377267177679 1.5103e-09 deg/d
Q 2.607199699550919 9.1012e-09 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:29  

Additional Information
 Earth MOID = .93047 au 
 Jupiter MOID = 2.85553 au 
 T_jup = 3.587 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457169.5 (2015-May-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497003074002609 5.3457e-08  
q 1.928985106547615 1.2105e-07 au
tp 2457324.652360627391
(2015-Oct-29.15236063)
5.1742e-05 TDB
node 17.65436344924098 2.8025e-05 deg
peri 353.0825982794651 3.2836e-05 deg
i 8.056329104705124 4.749e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:29  

Additional Information
 Jupiter MOID = 2.85553 au 
 T_jup = 3.587 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.857613382970462E-15 -6.460800633861132E-15 -1.255129054178268E-12 -1.231485635154999E-15 -5.000893528523058E-13 1.269886882876435E-15
q -6.460800633861132E-15 1.465230939415464E-14 2.916427796838346E-12 2.813838720196494E-15 1.151548077835345E-12 -3.041095007846692E-15
tp -1.255129054178268E-12 2.916427796838346E-12 2.677262312238602E-9 4.211021098163416E-12 8.920017717156191E-10 -6.582264720095804E-12
node -1.231485635154999E-15 2.813838720196494E-15 4.211021098163416E-12 7.854180634672267E-10 -7.753874169175145E-10 -2.714926471390738E-11
peri -5.000893528523058E-13 1.151548077835345E-12 8.920017717156191E-10 -7.753874169175145E-10 1.078213947585101E-9 2.47669014284126E-11
i 1.269886882876435E-15 -3.041095007846692E-15 -6.582264720095804E-12 -2.714926471390738E-11 2.47669014284126E-11 2.255333452965365E-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 16.2   n/a MPO309887  

101270 (1998 SQ111)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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