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100713 (1998 BG20)
Classification: Main-belt Asteroid          SPK-ID: 2100713
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04759848098390334 5.3354e-08  
a 2.928881262029095 2.2869e-08 au
q 2.789470962974293 1.4815e-07 au
i 3.865037224910612 5.7425e-06 deg
node 295.2087653014099 6.2364e-05 deg
peri 209.7654475390436 7.9174e-05 deg
M 182.5964565650651 4.9385e-05 deg
tp 2460102.716706177708
(2023-Jun-07.21670618)
0.00025328 TDB
period 1830.842879094457
5.01
2.1443e-05
5.871e-08
d
yr
n .1966307453854574 2.303e-09 deg/d
Q 3.068291561083898 2.3958e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1998-01-22  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:26  

Additional Information
 Earth MOID = 1.8023 au 
 Jupiter MOID = 1.94052 au 
 T_jup = 3.272 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456900.5 (2014-Aug-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04649334690346102 5.3497e-08  
q 2.790989376187034 1.4889e-07 au
tp 2456419.237285903762
(2013-May-06.73728590)
0.00025073 TDB
node 295.2894472968317 6.2457e-05 deg
peri 205.3668845736296 7.9806e-05 deg
i 3.863035517178194 5.7389e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1998-01-22  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:26  

Additional Information
 Jupiter MOID = 1.94052 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.861891577455134E-15 -7.899244169140457E-15 -1.936835417089952E-12 3.905541401113937E-15 -4.002526199973622E-13 1.674043993362192E-16
q -7.899244169140457E-15 2.216874962583605E-14 6.445221926746022E-12 -7.930644243152039E-15 1.33371211062994E-12 -6.628356985035937E-16
tp -1.936835417089952E-12 6.445221926746022E-12 6.286466938445983E-8 -2.260074709901049E-11 1.247303124253769E-8 -5.533246987929186E-12
node 3.905541401113937E-15 -7.930644243152039E-15 -2.260074709901049E-11 3.900911995787646E-9 -3.895796216769628E-9 -1.032729960011331E-11
peri -4.002526199973622E-13 1.33371211062994E-12 1.247303124253769E-8 -3.895796216769628E-9 6.368956836691588E-9 9.174081755183298E-12
i 1.674043993362192E-16 -6.628356985035937E-16 -5.533246987929186E-12 -1.032729960011331E-11 9.174081755183298E-12 3.293462518784769E-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 15.46   n/a E2021B55  
diameter diameter 3.907 km 0.749 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100713 (1998 BG20)          Discovered 1998-Jan-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 BG20 = 2001 TT100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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