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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481874961243961 4.8254e-08  
a 2.759151565181992 1.8129e-08 au
q 2.350279803309964 1.3297e-07 au
i 8.063386003163433 5.1703e-06 deg
node 291.9217470357606 3.9418e-05 deg
peri 122.9786698384241 4.3477e-05 deg
M 204.4610046335522 1.9326e-05 deg
tp 2459723.766836589907
(2022-May-24.26683659)
9.3195e-05 TDB
period 1674.024321418074
4.58
1.6499e-05
4.517e-08
d
yr
n .2150506389865604 2.1195e-09 deg/d
Q 3.168023327054019 2.0815e-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 = 1.37389 au 
 Jupiter MOID = 2.18826 au 
 T_jup = 3.312 
[ 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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