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109984 (2001 SB57)
Classification: Main-belt Asteroid          SPK-ID: 2109984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301115863260787 4.0918e-08  
a 2.637446161947446 1.3382e-08 au
q 2.030539241772091 1.0535e-07 au
i 13.5479855658359 8.7692e-06 deg
node 35.19733567099858 1.6843e-05 deg
peri 61.22817458715446 2.6754e-05 deg
M 78.64990552605782 1.8217e-05 deg
tp 2458658.701985062260
(2019-Jun-24.20198506)
7.8766e-05 TDB
period 1564.493746744795
4.28
1.1907e-05
3.26e-08
d
yr
n .2301063847324692 1.7513e-09 deg/d
Q 3.244353082122801 1.6462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      12971 days (35.51 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:38  

Additional Information
 Earth MOID = 1.08397 au 
 Jupiter MOID = 2.14716 au 
 T_jup = 3.320 
[ 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 15.5   n/a MPO453561  

109984 (2001 SB57)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
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
2145-Jan-26 23:11 00:06 Iris 0.0141969005229011 0.0141642252804675 0.0142295891139808 5.89776070816155 5.89776063950336 2504531.466248794 5.97635436600504 1768.18946832382 70.5747302526463 -22.8797308831619 11748.1141736331 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 19:08:39 2020-Nov-12 19:08

Alternate Designations
 2001 SB57 = 1984 WH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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