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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301115811337149 4.1593e-08  
a 2.637446162971313 1.3485e-08 au
q 2.030539256254934 1.0742e-07 au
i 13.5479848440781 8.7977e-06 deg
node 35.19733230809523 1.7215e-05 deg
peri 61.2281788798665 2.7061e-05 deg
M 78.64990399683884 1.831e-05 deg
tp 2458658.701991508934
(2019-Jun-24.20199151)
7.9141e-05 TDB
period 1564.493747655808
4.28
1.1999e-05
3.285e-08
d
yr
n .230106384598477 1.7648e-09 deg/d
Q 3.244353069687691 1.6588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      12944 days (35.44 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:11:11  

Additional Information
 Earth MOID = 1.08397 au 
 Jupiter MOID = 2.14716 au 
 T_jup = 3.320 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457377.5 (2015-Dec-21.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .230224591497252 4.1283e-08  
q 2.031093012637122 1.0653e-07 au
tp 2457095.316526523401
(2015-Mar-13.81652652)
7.8465e-05 TDB
node 35.20686293113848 1.7218e-05 deg
peri 61.5391190339726 2.7062e-05 deg
i 13.54569284899148 8.7961e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      12944 days (35.44 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:11:11  

Additional Information
 Jupiter MOID = 2.14716 au 
 T_jup = 3.320 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.704312474526277E-15 -4.378718501483595E-15 -1.759372750600622E-12 1.487285306141114E-14 -4.869180026727004E-13 8.342926833462057E-16
q -4.378718501483595E-15 1.134902827884927E-14 4.611771846558304E-12 -3.857391721483879E-14 1.27651008353269E-12 -2.978488771460052E-15
tp -1.759372750600622E-12 4.611771846558304E-12 6.156734234721004E-9 -3.965582037472419E-11 1.647706935734252E-9 -7.895929384366584E-12
node 1.487285306141114E-14 -3.857391721483879E-14 -3.965582037472419E-11 2.964681281595613E-10 -2.979391746931976E-10 -4.707101297480749E-11
peri -4.869180026727004E-13 1.27651008353269E-12 1.647706935734252E-9 -2.979391746931976E-10 7.323747075987971E-10 4.386636616592938E-11
i 8.342926833462057E-16 -2.978488771460052E-15 -7.895929384366584E-12 -4.707101297480749E-11 4.386636616592938E-11 7.73710286378999E-11

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

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