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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494003140319878 5.3032e-08  
a 2.268324321895657 7.9232e-09 au
q 1.92943595587805 1.199e-07 au
i 8.051993059954615 4.7409e-06 deg
node 17.62028060134062 2.8046e-05 deg
peri 353.520388890786 3.2917e-05 deg
M 180.571244546361 1.5811e-05 deg
tp 2459822.435998567702
(2022-Aug-30.93599857)
5.5999e-05 TDB
period 1247.832093124135
3.42
6.5379e-06
1.79e-08
d
yr
n .2885003535200685 1.5116e-09 deg/d
Q 2.607212687913263 9.1069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:01  

Additional Information
 Earth MOID = .928322 au 
 Jupiter MOID = 2.85659 au 
 T_jup = 3.587 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.21   n/a E2021B55  

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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