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JPL Small-Body Database Browser
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71231 (1999 YY22)
Classification: Main-belt Asteroid          SPK-ID: 2071231
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489826806491543 4.8213e-08  
a 2.757351238345803 1.8359e-08 au
q 2.34655365936578 1.3266e-07 au
i 8.063039225906463 5.1701e-06 deg
node 291.9293130517235 3.9439e-05 deg
peri 123.0257293584839 4.3445e-05 deg
M 118.3035295935554 1.8871e-05 deg
tp 2458050.918930542300
(2017-Oct-24.41893054)
8.5764e-05 TDB
period 1672.386155210282
4.58
1.6702e-05
4.573e-08
d
yr
n .2152612893131338 2.1498e-09 deg/d
Q 3.168148817325826 2.1094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      10304 days (28.21 yr)  
   first obs. used      1991-01-21  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57179  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:37:31  

Additional Information
 Earth MOID = 1.36981 au 
 Jupiter MOID = 2.18861 au 
 T_jup = 3.313 
[ 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 15.4   n/a MPO436281  

71231 (1999 YY22)          Discovered 1999-Dec-31 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 YY22 = 1998 QJ62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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