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109988 (2001 SR57)
Classification: Main-belt Asteroid          SPK-ID: 2109988
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2568610546577288 7.0006e-08  
a 2.567477827670515 1.4544e-08 au
q 1.907992765044732 1.8402e-07 au
i 3.365107706666986 7.8625e-06 deg
node 180.1120017218441 8.4032e-05 deg
peri 122.7291053333287 8.4871e-05 deg
M 242.9390324151377 1.2169e-05 deg
tp 2459489.116454780495
(2021-Oct-01.61645478)
5.2684e-05 TDB
period 1502.652227724494
4.11
1.2768e-05
3.496e-08
d
yr
n .2395763925663341 2.0357e-09 deg/d
Q 3.226962890296298 1.828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      10139 days (27.76 yr)  
   first obs. used      1992-04-29  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60001  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:55  

Additional Information
 Earth MOID = .895334 au 
 Jupiter MOID = 2.0392 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 16.2   n/a MPO469127  

109988 (2001 SR57)          Discovered 2001-Sep-17 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
2110-Apr-13 09:55 00:11 Hygie 0.0271672534099265 0.0271622002293255 0.027172311088667 2.79711314437188 2.7971126359237 2491823.912879917 11.4137257141988 614.137633464927 49.6778699803141 66.2686731016795 74665.4291282678 T 15 CATAB v2.0f-lin.ifort 2020-Feb-24 03:37:08 2020-Feb-24 03:37

Alternate Designations
 2001 SR57 = 1992 HG3 = 2000 GX16 = 2001 UK181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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