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JPL Small-Body Database Browser
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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 ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301115662324013 5.3612e-08  
a 2.637446166169934 1.5032e-08 au
q 2.030539298018928 1.4296e-07 au
i 13.54798193753478 1.1067e-05 deg
node 35.19732685437248 1.8355e-05 deg
peri 61.22818721938734 2.8769e-05 deg
M 78.64989947296588 2.1207e-05 deg
tp 2458658.702010547068
(2019-Jun-24.20201055)
9.1147e-05 TDB
period 1564.493750501869
4.28
1.3375e-05
3.662e-08
d
yr
n .2301063841798771 1.9672e-09 deg/d
Q 3.24435303432094 1.8491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      12830 days (35.13 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6091  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:55:14  

Additional Information
 Earth MOID = 1.08397 au 
 Jupiter MOID = 2.14716 au 
 T_jup = 3.320 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456842.5 (2014-Jul-04.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297829912598805 5.3319e-08  
q 2.031816481316306 1.4191e-07 au
tp 2457095.366844340087
(2015-Mar-13.86684434)
8.7972e-05 TDB
node 35.23396981809584 1.8367e-05 deg
peri 61.54488442363834 2.8804e-05 deg
i 13.54270483578983 1.1062e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      12830 days (35.13 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6091  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:55:14  

Additional Information
 Jupiter MOID = 2.14716 au 
 T_jup = 3.320 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.842939919071265E-15 -7.541860386759727E-15 -3.085249773465974E-12 1.900437824555817E-14 -7.525863986217537E-13 -1.546953136350324E-14
q -7.541860386759727E-15 2.013946527132015E-14 8.298674528344788E-12 -4.996559824404374E-14 2.014980089672957E-12 4.275895700461382E-14
tp -3.085249773465974E-12 8.298674528344788E-12 7.739145921746285E-9 -3.429262620132049E-11 1.957205584414301E-9 3.079521122713683E-11
node 1.900437824555817E-14 -4.996559824404374E-14 -3.429262620132049E-11 3.37337762870094E-10 -3.35573802386535E-10 -1.141883630269693E-11
peri -7.525863986217537E-13 2.014980089672957E-12 1.957205584414301E-9 -3.35573802386535E-10 8.296861084919836E-10 1.85746706235059E-11
i -1.546953136350324E-14 4.275895700461382E-14 3.079521122713683E-11 -1.141883630269693E-11 1.85746706235059E-11 1.223766271712321E-10

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

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