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187466 (2005 YR171)
Classification: Main-belt Asteroid          SPK-ID: 2187466
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3411595849760602 7.5341e-08  
a 2.553558262621018 1.9985e-08 au
q 1.682387385533042 1.9886e-07 au
i 5.736382694002707 6.1436e-06 deg
node 154.0719275371144 5.9484e-05 deg
peri 185.5640533056253 6.0369e-05 deg
M 300.4709062502432 9.3561e-06 deg
tp 2459446.958530149295
(2021-Aug-20.45853015)
3.8678e-05 TDB
period 1490.448875750084
4.08
1.7498e-05
4.791e-08
d
yr
n .2415379727928113 2.8356e-09 deg/d
Q 3.424729139708995 2.6804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      14532 days (39.79 yr)  
   first obs. used      1980-08-04  
   last obs. used      2020-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53146  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:32  

Additional Information
 Earth MOID = .671918 au 
 Jupiter MOID = 1.98617 au 
 T_jup = 3.348 
[ 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 16.02   n/a E2021B55  
diameter diameter 2.181 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187466 (2005 YR171)          Discovered 2005-Dec-22 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ 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
1908-Dec-26 19:41 00:03 Jupiter 1.97213601894656 1.97213546448149 1.97213657343787 1.21319890004348 0.782854788627539 2418302.320033569 2.92004962462781 763.25498906572 394.555245989165 28.7581411967968 1070027.00876773 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 21:55:33 2021-Apr-13 21:55
2027-Sep-29 14:52 < 00:01 Jupiter 1.97891104214617 1.9789104483396 1.97891163597817 1.23653650366162 0.820349573067696 2461678.119405938 0.441907656732171 739.574364459159 341.90939879137 31.7300714077485 1107252.37584639 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 21:55:33 2021-Apr-13 21:55
2133-Dec-18 06:11 00:03 Jupiter 1.99925169226844 1.99925077984056 1.99925260469529 1.24237696541347 0.834362617626856 2500473.757753047 3.35747576308202 510.948489252864 279.660359313086 13.2273148766407 1042722.08412913 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 21:55:33 2021-Apr-13 21:55
2146-Jul-04 07:37 00:04 Jupiter 1.98832098315937 1.98831990995328 1.98832205645328 1.25218691473084 0.846152651833111 2505054.817688397 3.7060963772287 956.750356536498 492.004294585603 59.4449688973125 979097.804843045 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 21:55:33 2021-Apr-13 21:55

Alternate Designations
 2005 YR171 = 1980 PS4 = 2005 WD207 = 2005 WP124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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