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101976 (1999 RS51)
Classification: Main-belt Asteroid          SPK-ID: 2101976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724085142320018 4.27e-08  
a 2.17431628155677 9.5969e-09 au
q 1.799445641983116 9.2125e-08 au
i 4.419703222143077 4.4273e-06 deg
node 203.3461083885514 5.5639e-05 deg
peri 167.3468111270288 5.6928e-05 deg
M 201.3818631353353 1.3414e-05 deg
tp 2459716.479975208716
(2022-May-16.97997521)
4.5554e-05 TDB
period 1171.069051413867
3.21
7.7532e-06
2.123e-08
d
yr
n .3074114199887368 2.0353e-09 deg/d
Q 2.549186921130424 1.1252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8532 days (23.36 yr)  
   first obs. used      1996-10-16  
   last obs. used      2020-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52702  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:43  

Additional Information
 Earth MOID = .798153 au 
 Jupiter MOID = 2.91849 au 
 T_jup = 3.663 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.59   n/a E2021B55  

101976 (1999 RS51)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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