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JPL Small-Body Database Browser
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80444 (1999 YG9)
Classification: Main-belt Asteroid          SPK-ID: 2080444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519375993943793 3.0046e-08  
a 2.458549701645138 1.1367e-08 au
q 2.085003561985408 7.5101e-08 au
i 3.608387562639471 4.2692e-06 deg
node 310.4099184781971 7.0231e-05 deg
peri 301.1118426190008 7.2408e-05 deg
M 246.2298233909563 1.7191e-05 deg
tp 2459045.482413137016
(2020-Jul-14.98241314)
6.7451e-05 TDB
period 1408.046234118194
3.86
9.765e-06
2.674e-08
d
yr
n .2556734227022412 1.7731e-09 deg/d
Q 2.832095841304867 1.3094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      13274 days (36.34 yr)  
   first obs. used      1982-09-12  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54578  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:56:53  

Additional Information
 Earth MOID = 1.07317 au 
 Jupiter MOID = 2.22115 au 
 T_jup = 3.473 
[ 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 15.0   n/a MPO436343  

80444 (1999 YG9)          Discovered 1999-Dec-31 by Korlevic, K. at Visnjan
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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