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101903 (1999 RR)
Classification: Main-belt Asteroid          SPK-ID: 2101903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656710192323875 4.1189e-08  
a 3.151998521040557 2.1342e-08 au
q 2.62980371344079 1.3289e-07 au
i 6.970004203245669 4.0824e-06 deg
node 85.29806943948148 3.8361e-05 deg
peri 332.5346403772614 4.0516e-05 deg
M 279.9309245356606 1.5376e-05 deg
tp 2459851.110798592628
(2022-Sep-28.61079859)
8.996e-05 TDB
period 2043.983729601519
5.60
2.0759e-05
5.684e-08
d
yr
n .1761266466001581 1.7888e-09 deg/d
Q 3.674193328640324 2.4878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      885  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1999-08-12  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:14:01  

Additional Information
 Earth MOID = 1.6443 au 
 Jupiter MOID = 1.6742 au 
 T_jup = 3.175 
[ 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 14.23   n/a MPO637350  
diameter diameter 7.690 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101903 (1999 RR)          Discovered 1999-Sep-03 by Sarounova, L. at Ondrejov
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
1937-Mar-31 16:10 00:02 Jupiter 1.75011319382959 1.75011238685344 1.75011400080942 2.43153223796303 2.22359751466414 2428624.173323889 2.41857577119304 153.006868800972 9.61283160837961 82.5692401877492 2742880.52833482 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
1947-Sep-12 14:11 00:02 Jupiter 1.71967468136249 1.71967414130653 1.71967522141865 2.08504505654001 1.83366209299298 2432441.090837620 1.98943459111167 101.063490665909 29.6264672256227 79.4793377386565 2336399.3822756 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
1958-Feb-21 05:13 00:02 Jupiter 1.98378095175473 1.98378006917499 1.9837818343365 2.46875416213808 2.2892792518871 2436255.717081108 1.65788467392697 144.967529328851 14.6769674365189 82.5320838818263 2483977.58223288 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2021-Jun-01 02:37 < 00:01 Jupiter 1.9305401647114 1.93053969202866 1.93054063739415 3.18218737663565 3.04118703101547 2459366.608718390 0.274911253676267 44.8463401347283 15.3119075068713 76.1028117791825 3315249.02534584 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2031-Oct-29 00:18 < 00:01 Jupiter 1.69271106060522 1.69271073905861 1.69271138215192 2.22915689323144 1.99207238633801 2463168.512417006 0.556877568552468 68.3044740007971 14.8131805126624 81.0075379511561 2886474.34062044 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2042-Apr-13 15:25 < 00:01 Jupiter 1.76905128968872 1.7690507439207 1.76905183545724 2.130962115783 1.89298671070079 2466988.142377573 0.911830973508217 115.146561808573 21.5736691429128 80.7257602136332 2264347.70133016 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2115-Dec-30 17:36 00:03 Jupiter 1.84418020868953 1.84417907401834 1.8441813433646 2.73218956289459 2.55856797164045 2493911.233469126 3.20417887412894 159.813810428809 10.4161412318508 78.8564471025956 2586974.78207945 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2126-May-30 18:42 00:03 Jupiter 1.67101877380627 1.67101842749381 1.67101912011874 2.13488215933433 1.88253607343495 2497715.279014685 3.41645753920388 181.493392783515 24.5795485197322 -88.5449955625133 2590739.94626503 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14
2136-Nov-13 19:00 00:04 Jupiter 1.8451150302873 1.84511339832984 1.84511666225483 2.26900675284821 2.0567613626584 2501535.291504054 3.81365567137731 259.700886864591 18.9950225607692 77.8526223147141 2098087.06178584 T 19 CATAB v2.0g-lin.ifort 2021-Aug-25 02:14:04 2021-Aug-25 02:14

Alternate Designations
 1999 RR = 2000 VQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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