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181180 (2005 ST81)
Classification: Main-belt Asteroid          SPK-ID: 2181180
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06410169866641487 5.0449e-08  
a 3.093638935701071 3.23e-08 au
q 2.895331424862072 1.4127e-07 au
i 8.656845408033497 6.8016e-06 deg
node 10.37141893764741 3.2165e-05 deg
peri 82.69983518758977 6.23e-05 deg
M 212.0117922398792 5.317e-05 deg
tp 2460017.510191895373
(2023-Mar-14.01019190)
0.00029562 TDB
period 1987.480445462853
5.44
3.1127e-05
8.522e-08
d
yr
n .181133857604401 2.8368e-09 deg/d
Q 3.291946446540069 3.4371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      6301 days (17.25 yr)  
   first obs. used      2002-02-06  
   last obs. used      2019-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:32  

Additional Information
 Earth MOID = 1.92822 au 
 Jupiter MOID = 1.84274 au 
 T_jup = 3.203 
[ 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 15.5   n/a MPO436895  
diameter diameter 5.367 km 0.478 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181180 (2005 ST81)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ 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
1951-May-09 03:25 00:03 Jupiter 1.86887358823237 1.86887285478007 1.86887432168542 3.96513478528298 3.8491351530504 2433775.642401305 2.73520841302279 148.020112842522 28.6755961034027 85.3348721578635 2294224.96433312 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
1961-Mar-15 10:49 00:02 Jupiter 1.97397476514805 1.9739740994169 1.97397543087943 2.8858643069136 2.73313427975168 2437373.950356194 2.49017794411462 65.6041544910957 27.3792619188236 68.6314942512796 2585549.62569848 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
2011-Mar-27 22:39 < 00:01 Jupiter 1.93073315724932 1.93073256675781 1.93073374774095 4.21191046225402 4.10643148155717 2455648.443717838 0.240261259090749 83.1908829781255 24.1731170131694 -82.4310787531935 2553714.21978241 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
2021-Feb-15 23:50 < 00:01 Jupiter 1.89895292156599 1.89895228028815 1.89895356284382 3.13762007257084 2.99208379708566 2459261.492983867 0.484812444795637 70.6554043880132 23.6263729795713 79.8857887213064 2409299.25431106 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
2081-Jan-14 08:29 00:03 Jupiter 1.8474584903913 1.84745778065608 1.84745920012685 3.48999827652649 3.35605843944465 2481143.853675659 3.11488407223667 117.824052845782 31.9153263857478 -81.0553389851551 2263780.4725181 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
2140-Dec-08 22:07 00:06 Jupiter 1.84041679260671 1.84041612175421 1.84041746346475 3.80320336803474 3.68020213010694 2503021.421819565 5.73448534281273 311.894303822821 24.1967668561113 88.3169409587267 2285212.66987984 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29
2200-Nov-01 05:09 00:08 Jupiter 1.88734036619404 1.88733818107454 1.88734255133199 4.03241689707711 3.91954114953371 2524897.714617424 8.38205839110136 341.494182024992 39.260588522111 74.2920248331888 2273589.50568702 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:29:33 2021-Apr-13 21:29

Alternate Designations
 2005 ST81 = 2002 CD35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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