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181057 (2005 PT18)
Classification: Main-belt Asteroid          SPK-ID: 2181057
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2830272086473407 5.9558e-08  
a 3.091316965915475 1.9345e-08 au
q 2.216390154008252 1.9031e-07 au
i 13.63086874952582 6.8321e-06 deg
node 308.4376099214122 2.1007e-05 deg
peri 17.1788991556729 2.31e-05 deg
M 347.6582187431617 7.9651e-06 deg
tp 2459464.559550587079
(2021-Sep-07.05955059)
4.4067e-05 TDB
period 1985.243272544061
5.44
1.8635e-05
5.102e-08
d
yr
n .1813379775561033 1.7021e-09 deg/d
Q 3.966243777822698 2.482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      2000-11-06  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:09:49  

Additional Information
 Earth MOID = 1.20705 au 
 Jupiter MOID = 1.40292 au 
 T_jup = 3.120 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457550.5 (2016-Jun-11.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2815028460135184 5.9613e-08  
q 2.221692913984185 1.9e-07 au
tp 2457481.228038884931
(2016-Apr-02.72803888)
4.4274e-05 TDB
node 308.4455641286156 2.1017e-05 deg
peri 17.35896490866446 2.3143e-05 deg
i 13.6232290643099 6.8283e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      2000-11-06  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:09:49  

Additional Information
 Jupiter MOID = 1.40292 au 
 T_jup = 3.120 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.553672208183096E-15 -1.130079920389645E-14 3.364966579409538E-14 -4.471455450826621E-15 -6.2328571189744E-14 -7.720304991523397E-15
q -1.130079920389645E-14 3.610105621229158E-14 -2.249392005240734E-13 1.63012991021741E-14 1.799724805616371E-13 2.617595930643042E-14
tp 3.364966579409538E-14 -2.249392005240734E-13 1.960147337631832E-9 -2.680410465495537E-12 4.456843253242107E-10 -6.490178885206854E-12
node -4.471455450826621E-15 1.63012991021741E-14 -2.680410465495537E-12 4.417260621003114E-10 -4.288754688150011E-10 1.536116496989732E-11
peri -6.2328571189744E-14 1.799724805616371E-13 4.456843253242107E-10 -4.288754688150011E-10 5.35597333953358E-10 -1.607701283180489E-11
i -7.720304991523397E-15 2.617595930643042E-14 -6.490178885206854E-12 1.536116496989732E-11 -1.607701283180489E-11 4.662541348317143E-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 14.9   n/a MPO396423  
diameter diameter 2.732 km 0.593 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.285   0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181057 (2005 PT18)          Discovered 2005-Aug-09 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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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
1920-Sep-14 08:03 00:03 Jupiter 1.58368846291785 1.58368597662532 1.5836909492165 3.22025794836697 3.04965211193958 2422581.835495319 2.78178474256449 222.46131426759 64.5702901890925 58.3035000452623 1710425.61729724 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
1930-Nov-24 20:07 00:03 Jupiter 1.66318867712604 1.66318602670574 1.66319132795732 3.2118209088094 3.04913775154513 2426305.338188687 2.84197976890609 1405.2635089517 30.6212127167504 -84.5173604679298 1761789.18832663 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
1991-Jun-09 19:33 < 00:01 Jupiter 1.41684278669922 1.41684217577675 1.41684339762201 3.30539599715018 3.11929396733343 2448417.314843331 0.717902438014546 115.14014955781 30.4503649782602 -85.2069131939462 1980335.72478518 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
2001-Jul-02 15:24 < 00:01 Jupiter 1.94811523587314 1.94811432437133 1.94811614737596 3.04940555709227 2.90332442628748 2452093.141376514 0.6776007115677 113.462678384853 23.1555723382875 -70.1881158669819 2060638.96200078 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
2062-Mar-26 13:03 00:01 Jupiter 1.40022202494234 1.40022142010611 1.40022262978326 3.3229237066074 3.13559909249161 2474275.043871330 1.18051971746873 174.737550408376 20.7583635424859 -82.2102256170912 2052977.26564849 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
2122-Oct-28 21:13 00:04 Jupiter 1.78144724858372 1.78144368232531 1.7814508148469 2.83038929799023 2.65709730001084 2496405.384321025 3.7291215694742 243.572379506959 82.1397349227358 34.3685426481945 1376036.95424184 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
2132-Dec-29 08:39 00:03 Jupiter 1.51587962693754 1.51587716113358 1.51588209288075 3.32202224223372 3.14933311952807 2500119.860424418 3.43261758179771 766.771240984434 16.9040955677369 -80.8344654723059 1935890.71216592 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
2193-Jul-02 15:09 00:05 Jupiter 1.54759652429291 1.54759256199987 1.54760048661578 3.10762071360849 2.92620519824365 2522220.131039883 5.08112122897987 414.734982713126 58.0785586027347 60.4308114720262 1607096.68008981 T 16 CATAB v2.0g-lin.ifort 2021-Aug-25 03:09:51 2021-Aug-25 03:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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