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120884 (1998 RY50)
Classification: Main-belt Asteroid          SPK-ID: 2120884
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08086938140349212 4.3212e-08  
a 3.082440156784819 2.2677e-08 au
q 2.833165128092347 1.4163e-07 au
i 9.675663156517874 5.2722e-06 deg
node 341.70022867796 2.2702e-05 deg
peri 80.13144994565809 4.3698e-05 deg
M 343.6013325929461 3.4357e-05 deg
tp 2459290.542276098526
(2021-Mar-17.04227610)
0.00018841 TDB
period 1976.698385963105
5.41
2.1813e-05
5.972e-08
d
yr
n .1821218667230294 2.0098e-09 deg/d
Q 3.33171518547729 2.4511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:35  

Additional Information
 Earth MOID = 1.8654 au 
 Jupiter MOID = 1.93909 au 
 T_jup = 3.201 
[ 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 14.7   n/a MPO449702  

120884 (1998 RY50)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ 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
1938-Oct-04 09:20 00:02 Jupiter 1.98429915291168 1.98429864396762 1.98429966185596 4.60588701791282 4.51225781741937 2429175.888565090 2.45137815524051 89.2112177953664 21.3378699933997 84.376022587031 3020148.55367432 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 17:08:36 2021-Apr-13 17:08
2068-Feb-24 01:27 00:02 Jupiter 1.99163622131754 1.99163573900348 1.99163670363173 3.85009915057009 3.73800534089717 2476435.560108257 1.74886641843176 73.0472085032236 17.9942841250606 78.631357409658 2694343.22180012 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 17:08:36 2021-Apr-13 17:08
2127-Nov-19 00:05 00:04 Jupiter 1.96093833004332 1.96093784323433 1.96093881685254 4.1494676854535 4.04403102965114 2498252.503434025 3.61516930051762 87.4176784996268 19.2822655620452 79.842291403862 2495137.08274712 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 17:08:36 2021-Apr-13 17:08
2187-Aug-10 01:56 00:05 Jupiter 1.95122270843622 1.95122214605374 1.9512232708188 4.38315394648996 4.28297114943497 2520066.580497775 5.46327637267845 73.3516404880159 20.5493117054639 81.4933830310696 1749743.21074268 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 17:08:36 2021-Apr-13 17:08

Alternate Designations
 1998 RY50 = 1999 XG202 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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