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101939 (1999 RN23)
Classification: Main-belt Asteroid          SPK-ID: 2101939
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697485805119054 3.6777e-08  
a 2.22535157985556 7.6411e-09 au
q 1.847601308035152 8.1407e-08 au
i 1.815210680304826 3.6326e-06 deg
node 111.84916892898 0.00017724 deg
peri 220.2118912724558 0.00017786 deg
M 103.4908311567872 1.5621e-05 deg
tp 2458651.925388220315
(2019-Jun-17.42538822)
5.2484e-05 TDB
period 1212.540848672631
3.32
6.2451e-06
1.71e-08
d
yr
n .2968972141384696 1.5292e-09 deg/d
Q 2.603101851675967 8.9381e-09 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7735 days (21.18 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52048  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:38  

Additional Information
 Earth MOID = .837459 au 
 Jupiter MOID = 2.74144 au 
 T_jup = 3.627 
[ 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 16.6   n/a MPO502728  

101939 (1999 RN23)          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
2021-Apr-03 01:38 < 00:01 Amphi 0.0166177380286706 0.0166159611496456 0.0166195149381823 3.22700218416341 3.22700207696165 2459307.567763230 0.89659627067176 96.906019427412 38.6065104468039 26.3135581197422 36623.8221648042 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:40 2020-Nov-12 19:57
2106-Dec-06 22:35 00:02 Eunom 0.0116220880961652 0.0116099133690928 0.0116342682405604 4.7973194501523 4.79731919837817 2490600.440954691 2.07910195761925 724.478814444814 26.8838694312792 -33.1399213712882 35382.4112483285 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:40 2020-Nov-12 19:57
2113-Nov-26 13:36 < 00:01 Hebe 0.0396758282638647 0.0396614117011536 0.0396902453896437 4.61088622190629 4.61088618792443 2493147.066431682 0.579677571623622 756.241579545472 35.1339456387801 18.1870206903942 53225.3956038953 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:40 2020-Nov-12 19:57
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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