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109982 (2001 SQ55)
Classification: Main-belt Asteroid          SPK-ID: 2109982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0988712801945525 5.8852e-08  
a 2.610855356222324 1.6883e-08 au
q 2.352716744749819 1.4865e-07 au
i 9.818078316909002 5.1301e-06 deg
node 56.82675680638579 3.2444e-05 deg
peri 261.554681303112 5.4942e-05 deg
M 255.4072892934304 5.2227e-05 deg
tp 2459648.183989518951
(2022-Mar-09.68398952)
0.00022599 TDB
period 1540.893577937446
4.22
1.4947e-05
4.092e-08
d
yr
n .2336306706410419 2.2662e-09 deg/d
Q 2.86899396769483 1.8553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      8230 days (22.53 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:38  

Additional Information
 Earth MOID = 1.36213 au 
 Jupiter MOID = 2.38151 au 
 T_jup = 3.382 
[ show covariance matrix ]

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 15.01   n/a E2021B55  

109982 (2001 SQ55)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1958-Mar-19 15:58 < 00:01 Thisb 0.0493345445053838 0.0493184474227981 0.0493506419091801 4.98277531172713 4.98277528399059 2436282.165459616 0.877310353898416 826.66443234188 37.1892272994185 13.9217864685108 48507.1479430675 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 19:08:40 2020-Nov-12 19:08
1969-Jul-26 17:10 00:01 David 0.0473480910696189 0.0473378123802139 0.0473583700348022 5.06807533400449 5.06807527104844 2440429.215543514 1.05257813395416 543.436409736311 57.1355418476312 -19.5995011112825 43334.1653266805 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 19:08:40 2020-Nov-12 19:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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