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146808 (2001 YW81)
Classification: Main-belt Asteroid          SPK-ID: 2146808
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09404550685209123 4.488e-08  
a 2.995992324604511 2.3095e-08 au
q 2.714232707912105 1.4438e-07 au
i 11.0219447434484 4.6521e-06 deg
node 96.43020900163825 2.2446e-05 deg
peri 259.9611547842741 3.3514e-05 deg
M 304.3013092947075 2.5462e-05 deg
tp 2459293.556903985432
(2021-Mar-20.05690399)		 0.00013503 TDB
period 1894.128642861096
5.19		 2.1902e-05
5.996e-08		 d
yr
n .1900610084520011 2.1977e-09 deg/d
Q 3.277751941296918 2.5267e-08 au
   Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      7280 days (19.93 yr)  
   first obs. used      2000-10-05  
   last obs. used      2020-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:23:40  

Additional Information
 Earth MOID = 1.73669 au 
 Jupiter MOID = 2.14264 au 
 T_jup = 3.220 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457513.5 (2016-May-05.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09589143916138695 4.4723e-08  
q 2.705201798704999 1.4373e-07 au
tp 2457409.586351696573
(2016-Jan-22.08635170)		 0.00012844 TDB
node 96.45151471336287 2.2474e-05 deg
peri 261.3427601777379 3.3309e-05 deg
i 11.01986424555133 4.6511e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      7280 days (19.93 yr)  
   first obs. used      2000-10-05  
   last obs. used      2020-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:23:40  

Additional Information
 Jupiter MOID = 2.14264 au 
 T_jup = 3.220 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.000154437402268E-15 -6.374023308618039E-15 -6.269225771976868E-13 1.50896127452603E-14 -7.481303635060876E-14 -2.492587418128001E-16
q -6.374023308618039E-15 2.065958006630947E-14 2.258306813728748E-12 -4.90820921980685E-14 2.918765174183112E-13 1.924692193083281E-15
tp -6.269225771976868E-13 2.258306813728748E-12 1.64956112985295E-8 -2.425692062139769E-11 3.178691980258705E-9 9.892473877162147E-12
node 1.50896127452603E-14 -4.90820921980685E-14 -2.425692062139769E-11 5.050867357797587E-10 -4.995401160545521E-10 -1.598611616747929E-12
peri -7.481303635060876E-14 2.918765174183112E-13 3.178691980258705E-9 -4.995401160545521E-10 1.109514794877462E-9 3.46454924454538E-12
i -2.492587418128001E-16 1.924692193083281E-15 9.892473877162147E-12 -1.598611616747929E-12 3.46454924454538E-12 2.163307841820325E-11

[ 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 MPO401251  
diameter diameter 3.592 km 0.932 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146808 (2001 YW81)          Discovered 2001-Dec-18 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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
2138-May-21 04:48 00:09 Juno 0.0437883011646034 0.0437629160408929 0.0438137027585665 4.92967210919128 4.92967205283143 2502088.700235927 9.43185975248092 1842.84825855423 59.9608419751251 46.6670133209686 79449.6287314803 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 14:23:41 2020-Nov-12 14:23
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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