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85843 (1998 YT9)
Classification: Main-belt Asteroid          SPK-ID: 2085843
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494060884848078 3.0378e-08  
a 2.224636949502312 7.9905e-09 au
q 1.892262644578397 6.6942e-08 au
i 6.078533432492397 3.7338e-06 deg
node 114.416295588843 4.1037e-05 deg
peri 313.8750980849132 4.4246e-05 deg
M 312.6190585548038 1.8119e-05 deg
tp 2459556.010152866313
(2021-Dec-07.51015287)
6.1476e-05 TDB
period 1211.956818086711
3.32
6.5297e-06
1.788e-08
d
yr
n .2970402861121107 1.6004e-09 deg/d
Q 2.557011254426228 9.1843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      7721 days (21.14 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54784  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:33  

Additional Information
 Earth MOID = .912256 au 
 Jupiter MOID = 2.71038 au 
 T_jup = 3.625 
[ 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 15.61   n/a E2021B10  

85843 (1998 YT9)          Discovered 1998-Dec-25 by Korlevic, K., Juric, M. at Visnjan
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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