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91211 (1998 YJ2)
Classification: Main-belt Asteroid          SPK-ID: 2091211
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07912756147895039 4.5372e-08  
a 2.276815547264341 9.0257e-09 au
q 2.096656685071952 1.036e-07 au
i 5.869080227500498 3.9853e-06 deg
node 312.2908163378823 4.8425e-05 deg
peri 279.8247008447428 5.6829e-05 deg
M 100.1526090932044 2.9329e-05 deg
tp 2459047.399905589129
(2020-Jul-16.89990559)
0.00010269 TDB
period 1254.845331797163
3.44
7.4616e-06
2.043e-08
d
yr
n .2868879461697608 1.7059e-09 deg/d
Q 2.45697440945673 9.7399e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      8270 days (22.64 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:46  

Additional Information
 Earth MOID = 1.09547 au 
 Jupiter MOID = 2.55597 au 
 T_jup = 3.597 
[ 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 15.62   n/a E2021B10  

91211 (1998 YJ2)          Discovered 1998-Dec-17 by ODAS at Caussols
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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