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136841 (1997 WU50)
Classification: Main-belt Asteroid          SPK-ID: 2136841
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3742970300046529 5.8178e-08  
a 2.74558604410034 1.3297e-08 au
q 1.717921342171359 1.6103e-07 au
i 11.28034792064859 5.6697e-06 deg
node 68.21660123977459 2.8471e-05 deg
peri 304.1465639271667 2.9146e-05 deg
M 5.18498119082925 6.937e-06 deg
tp 2458976.567079436363
(2020-May-07.06707944)
3.1899e-05 TDB
period 1661.693858822161
4.55
1.2071e-05
3.305e-08
d
yr
n .2166464045640601 1.5738e-09 deg/d
Q 3.773250746029321 1.8273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      8371 days (22.92 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:49:33  

Additional Information
 Earth MOID = .748833 au 
 Jupiter MOID = 1.79597 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456978.5 (2014-Nov-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3790837979700643 5.8312e-08  
q 1.70181658666377 1.6189e-07 au
tp 2457315.250049306760
(2015-Oct-19.75004931)
2.3952e-05 TDB
node 68.32142709603947 2.8572e-05 deg
peri 303.9741857550029 2.9182e-05 deg
i 11.2791172882396 5.674e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      8371 days (22.92 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:49:33  

Additional Information
 Jupiter MOID = 1.79597 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.400246069095655E-15 -9.428532650699896E-15 -1.507880095289352E-13 4.710023662034774E-14 -1.151583593522999E-13 -2.380597812053277E-14
q -9.428532650699896E-15 2.620930743238572E-14 4.884925197339951E-13 -1.304958686682539E-13 3.281227417206366E-13 6.652489796595467E-14
tp -1.507880095289352E-13 4.884925197339951E-13 5.736824190907127E-10 -3.102357135826648E-12 1.654509492565385E-10 1.623153391163671E-12
node 4.710023662034774E-14 -1.304958686682539E-13 -3.102357135826648E-12 8.163526864360952E-10 -8.014518723230028E-10 -4.605146317224371E-11
peri -1.151583593522999E-13 3.281227417206366E-13 1.654509492565385E-10 -8.014518723230028E-10 8.51564495858805E-10 4.595307755658099E-11
i -2.380597812053277E-14 6.652489796595467E-14 1.623153391163671E-12 -4.605146317224371E-11 4.595307755658099E-11 3.219388746838745E-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 15.3   n/a MPO436675  
diameter diameter 2.176 km 0.522 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.258   0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

136841 (1997 WU50)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ 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
1923-Feb-03 21:03 00:02 Jupiter 1.91252469412677 1.91252334620733 1.91252604208317 2.04934696063063 1.82045577316847 2423454.376916590 2.00940890213981 462.743219930251 57.7185096454019 85.8181471159684 1231932.12325212 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
1981-Dec-27 13:10 < 00:01 Jupiter 1.80398308537785 1.8039824953179 1.80398367544117 1.83036146697705 1.55279262706944 2444966.048628440 0.732130173744894 165.116304440988 90.3316127009339 70.060154128767 1140692.02084597 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
2040-Nov-25 13:30 < 00:01 Jupiter 1.77911675161221 1.77911615194207 1.77911735128345 1.63812272862502 1.31577463959486 2466484.062846969 0.601399548485786 200.873912598176 105.4302511858 35.8206292671761 1099757.31147282 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
2099-Oct-22 01:17 00:02 Jupiter 1.84323492980625 1.84323387365936 1.84323598595743 1.36452727900687 0.97101692121059 2487998.553139666 1.89008364689529 619.355051517808 182.180330039291 24.0911359952054 1060523.84969393 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
2136-Oct-15 06:50 00:03 Jupiter 1.91787038603737 1.91786872739187 1.9178720447522 2.28764710480448 2.08567361489275 2501505.784571601 2.62125413475687 617.789592179865 34.293003359511 84.8380079209998 1425588.45374224 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
2158-Sep-03 05:45 00:03 Jupiter 1.98589178164142 1.98588947113092 1.98589409215224 0.891188089207096 n/a 2509498.739810446 3.47395041617306 149.521252615443 104.364540041903 62.8779956020973 2689977.45927127 F 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49
2195-Sep-09 14:00 00:04 Jupiter 1.80187922842415 1.80187795110015 1.80188050579537 2.10890324297964 1.87278356886585 2523019.083532231 3.65056275165178 508.058102610485 55.2147639647236 87.6899826705357 1308686.96190047 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 15:49:34 2020-Nov-12 15:49

Alternate Designations
 1997 WU50 = 2003 AJ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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