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226251 (2002 YS1)
Classification: Main-belt Asteroid          SPK-ID: 2226251
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871636394885075 4.1287e-08  
a 2.350435531563195 1.1109e-08 au
q 1.910519463092723 9.8391e-08 au
i 6.340712065133549 4.4491e-06 deg
node 79.38486316160294 4.5288e-05 deg
peri 38.91892006780119 4.7282e-05 deg
M 294.1689979418035 1.5653e-05 deg
tp 2459241.184934918758
(2021-Jan-26.68493492)
5.8308e-05 TDB
period 1316.197139064581
3.60
9.3309e-06
2.555e-08
d
yr
n .2735152579467324 1.939e-09 deg/d
Q 2.790351600033667 1.3188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59116  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:59:12  

Additional Information
 Earth MOID = .931506 au 
 Jupiter MOID = 2.31679 au 
 T_jup = 3.526 
[ 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 16.4   n/a MPO450049  
diameter diameter 2.996 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226251 (2002 YS1)          Discovered 2002-Dec-27 by LONEOS at Anderson Mesa
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Nov-16 07:50 < 00:01 Eunom 0.0475728460853583 0.0475685999606054 0.0475770941723512 6.68537057909162 6.68537053495397 2425566.826478462 0.50604113276146 539.94971625027 51.8204585384929 67.5484144860992 126976.56263401 T 17 CATAB v2.0f-lin.ifort 2020-Dec-17 23:59:12 2020-Dec-17 23:59
2040-Aug-23 00:11 < 00:01 Eunom 0.0317942997671878 0.0317910652794766 0.0317975345343468 6.87993301121824 6.87993294704405 2466389.507304533 0.435101113419093 224.453261163598 49.534275450549 -45.4981556500684 70050.6350215335 T 17 CATAB v2.0f-lin.ifort 2020-Dec-17 23:59:12 2020-Dec-17 23:59
2152-May-31 13:51 < 00:01 Eunom 0.0463821228088536 0.0463660038310902 0.0463982418255287 7.05436604754924 7.05436600464647 2507213.077335185 0.432334667019856 806.355371470244 53.8739113984792 -4.79925664306497 13764.5972919185 T 17 CATAB v2.0f-lin.ifort 2020-Dec-17 23:59:12 2020-Dec-17 23:59
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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