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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2568610553500297 7.0004e-08  
a 2.567477827301807 1.4405e-08 au
q 1.907992762993264 1.8401e-07 au
i 3.365107129075212 7.8268e-06 deg
node 180.1119956798806 8.3561e-05 deg
peri 122.7291118563503 8.4356e-05 deg
M 242.9390322451374 1.2134e-05 deg
tp 2459489.116455384829
(2021-Oct-01.61645538)
5.2582e-05 TDB
period 1502.652227400807
4.11
1.2646e-05
3.462e-08
d
yr
n .2395763926179415 2.0162e-09 deg/d
Q 3.22696289161035 1.8105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      10192 days (27.90 yr)  
   first obs. used      1992-04-29  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:37  

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

[ show close-approach data ]
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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