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101948 (1999 RT26)
Classification: Main-belt Asteroid          SPK-ID: 2101948
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872179663412809 3.3757e-08  
a 2.444807019512025 1.1015e-08 au
q 1.987095221222096 8.5241e-08 au
i 2.43360813413968 5.3089e-06 deg
node 90.8787189865526 0.0001077 deg
peri 283.5479006603971 0.00010914 deg
M 137.4408722352417 1.8639e-05 deg
tp 2458467.436796993738
(2018-Dec-14.93679699)
7.0366e-05 TDB
period 1396.256804553718
3.82
9.4359e-06
2.583e-08
d
yr
n .2578322260102187 1.7424e-09 deg/d
Q 2.902518817801955 1.3077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7534 days (20.63 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 18:04:13  

Additional Information
 Earth MOID = .989689 au 
 Jupiter MOID = 2.56136 au 
 T_jup = 3.474 
[ show covariance matrix ]

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 16.4   n/a MPO417515  

101948 (1999 RT26)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1972-Sep-17 18:57 < 00:01 Hebe 0.026489083995267 0.0264868783048536 0.026491294505211 5.09863770337035 5.09863765734084 2441578.289386819 0.64260856690698 642.879316677222 50.3555241455557 81.2158516865291 77745.4463658885 T 19 CATAB v2.0f-lin.ifort 2020-May-20 18:04:27 2020-May-20 18:04
1993-Nov-14 20:10 < 00:01 Juno 0.0460616136262738 0.0460549558301001 0.0460682714815975 4.64160011988708 4.64160006298357 2449306.340320167 0.87389184624124 342.214327479552 68.7565902473381 14.5121877775195 31766.8012852923 T 19 CATAB v2.0f-lin.ifort 2020-May-20 18:04:27 2020-May-20 18:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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