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101144 (1998 RT69)
Classification: Main-belt Asteroid          SPK-ID: 2101144
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 .196652839776188 5.016e-08  
a 2.543863809762302 8.7622e-09 au
q 2.043605767568673 1.2919e-07 au
i 7.333261788859062 4.6618e-06 deg
node 11.06044238954207 3.6548e-05 deg
peri 335.9666217436454 3.8088e-05 deg
M 134.9248858139483 1.2654e-05 deg
tp 2458445.070719568257
(2018-Nov-22.57071957)
5.0352e-05 TDB
period 1481.969317588678
4.06
7.6569e-06
2.096e-08
d
yr
n .2429200090226957 1.2551e-09 deg/d
Q 3.044121851955931 1.0485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      7812 days (21.39 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:16:32  

Additional Information
 Earth MOID = 1.0398 au 
 Jupiter MOID = 2.3861 au 
 T_jup = 3.405 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456711.5 (2014-Feb-23.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1982598031145146 5.0628e-08  
q 2.038816723152954 1.3071e-07 au
tp 2456960.558799762073
(2014-Oct-30.05879976)
4.5069e-05 TDB
node 11.11176731897329 3.652e-05 deg
peri 335.3901471259074 3.8006e-05 deg
i 7.340517763081402 4.6683e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      7812 days (21.39 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:16:32  

Additional Information
 Jupiter MOID = 2.3861 au 
 T_jup = 3.405 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.563162321726694E-15 -6.60824382036398E-15 -9.442728155885407E-13 -2.989642717803365E-14 -1.955281501450255E-13 -3.731142977052938E-15
q -6.60824382036398E-15 1.708469143398528E-14 2.56610612879293E-12 7.758728894738887E-14 5.31753553729439E-13 9.633636410908079E-15
tp -9.442728155885407E-13 2.56610612879293E-12 2.031171377628593E-9 1.849234288307331E-11 4.975124285486766E-10 1.318406315408383E-12
node -2.989642717803365E-14 7.758728894738887E-14 1.849234288307331E-11 1.333679100619511E-9 -1.318128659601336E-9 -6.658825778463508E-11
peri -1.955281501450255E-13 5.31753553729439E-13 4.975124285486766E-10 -1.318128659601336E-9 1.44442443954599E-9 6.643899257441992E-11
i -3.731142977052938E-15 9.633636410908079E-15 1.318406315408383E-12 -6.658825778463508E-11 6.643899257441992E-11 2.179346985643822E-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 MPO453465  
diameter diameter 4.842 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101144 (1998 RT69)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RT69 = 2002 RJ48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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