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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3742970421651797 5.4646e-08  
a 2.745586042200627 1.2933e-08 au
q 1.71792130759493 1.5071e-07 au
i 11.28034781817076 5.5781e-06 deg
node 68.21660162797355 2.739e-05 deg
peri 304.1465636505568 2.8137e-05 deg
M 5.184981869188987 6.8485e-06 deg
tp 2458976.567076330018
(2020-May-07.06707633)
3.1496e-05 TDB
period 1661.693857097534
4.55
1.1741e-05
3.215e-08
d
yr
n .2166464047889115 1.5307e-09 deg/d
Q 3.773250776806324 1.7774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      8382 days (22.95 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:49:40  

Additional Information
 Earth MOID = .748833 au 
 Jupiter MOID = 1.79597 au 
 T_jup = 3.216 
[ 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 15.3   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

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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 1.91252472847733 1.91252339357707 1.912526063414 2.04934700423716 1.8204558266273 2423454.376976976 1.95477148108829 459.116852496273 55.7853852197328 85.9032661612997 1271420.13856479 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
1981-Dec-27 13:10 < 00:01 Jupiter 1.80398306705756 1.80398248397988 1.80398365013852 1.83036140056075 1.55279254571014 2444966.048639774 0.716907091022382 162.353089505477 87.7428716933719 71.5856601612221 1177631.13573916 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
2040-Nov-25 13:30 < 00:01 Jupiter 1.7791167252413 1.77911613998346 1.77911731049994 1.63812273868507 1.31577464675623 2466484.062830925 0.582563362443805 191.822022019394 97.4777882050204 34.4837675890331 1151994.50891071 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
2099-Oct-22 01:16 00:02 Jupiter 1.84323494787999 1.84323389526205 1.84323600050223 1.36452720825514 0.971016826426691 2487998.553080181 1.83276929559922 602.190720324852 166.584903520318 24.4014650018141 1142968.33541606 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
2136-Oct-15 06:50 00:03 Jupiter 1.9178702845493 1.91786870157666 1.9178718675842 2.28764689631704 2.08567337501036 2501505.784477939 2.53487787996834 586.278050588195 33.2760881604071 84.782671524891 1464576.29787913 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
2158-Sep-03 05:45 00:03 Jupiter 1.98589188018132 1.9858896207952 1.98589413956764 0.891187599147133 n/a 2509498.739684222 3.36693077229434 139.317417947428 104.356366598408 62.6059832390453 2710681.2995701 F 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49
2195-Sep-09 14:00 00:04 Jupiter 1.80187914164091 1.80187793823963 1.80188034508479 2.10890306458806 1.8727833558937 2523019.083406506 3.53248318476248 483.004320381542 53.2840806405328 87.8274650248587 1350954.53722476 T 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:49:41 2020-Dec-18 04:49

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