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101933 (1999 RS21)
Classification: Main-belt Asteroid          SPK-ID: 2101933
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226049169628643 3.9234e-08  
a 2.237763166909824 8.2024e-09 au
q 1.963402399648289 8.9714e-08 au
i 5.360495582305879 4.0765e-06 deg
node 149.4528426538417 3.776e-05 deg
peri 206.7972218899488 4.0977e-05 deg
M 66.49236425501466 1.4121e-05 deg
tp 2458774.666230703829
(2019-Oct-18.16623070)
4.8225e-05 TDB
period 1222.699145345705
3.35
6.7226e-06
1.841e-08
d
yr
n .2944305648452988 1.6188e-09 deg/d
Q 2.512123934171359 9.208e-09 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:45  

Additional Information
 Earth MOID = .960048 au 
 Jupiter MOID = 2.90428 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457274.5 (2015-Sep-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235357796256098 3.9311e-08  
q 1.960977554734063 8.9982e-08 au
tp 2457551.907040662490
(2016-Jun-12.40704066)
4.9554e-05 TDB
node 149.5152191504008 3.7757e-05 deg
peri 206.7351662554434 4.091e-05 deg
i 5.361118453747821 4.0776e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:45  

Additional Information
 Jupiter MOID = 2.90428 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.545348412744861E-15 -3.526533159891087E-15 8.361737747084712E-14 1.90460857357857E-15 3.328872369444887E-14 -1.032951740033542E-17
q -3.526533159891087E-15 8.096736211754926E-15 -3.12274090640364E-13 -4.498707095191833E-15 -1.163759883477222E-13 2.318975119914802E-16
tp 8.361737747084712E-14 -3.12274090640364E-13 2.455620931418523E-9 -9.627885258708949E-12 7.902452090566159E-10 -1.395245455162664E-12
node 1.90460857357857E-15 -4.498707095191833E-15 -9.627885258708949E-12 1.425597794694953E-9 -1.421675214319211E-9 1.751953051537474E-11
peri 3.328872369444887E-14 -1.163759883477222E-13 7.902452090566159E-10 -1.421675214319211E-9 1.673587971832712E-9 -1.792505695898134E-11
i -1.032951740033542E-17 2.318975119914802E-16 -1.395245455162664E-12 1.751953051537474E-11 -1.792505695898134E-11 1.662654380629237E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO436477  

101933 (1999 RS21)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 RS21 = 2001 FU102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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