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172765 (2004 DW51)
Classification: Main-belt Asteroid          SPK-ID: 2172765
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08850576080210337 5.3212e-08  
a 2.972585458324803 2.6949e-08 au
q 2.709494520786497 1.5469e-07 au
i 3.265719056894437 5.9363e-06 deg
node 85.05497182697918 9.7214e-05 deg
peri 115.9797274652007 0.00010261 deg
M 37.42761500438078 3.5595e-05 deg
tp 2458805.879043346503
(2019-Nov-18.37904335)
0.00018395 TDB
period 1871.974593814168
5.13
2.5456e-05
6.969e-08
d
yr
n .1923103022816652 2.6152e-09 deg/d
Q 3.235676395863109 2.9334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:03  

Additional Information
 Earth MOID = 1.70841 au 
 Jupiter MOID = 1.72458 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456970.5 (2014-Nov-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0882972029964612 5.3054e-08  
q 2.709400882961788 1.5431e-07 au
tp 2456928.337065226170
(2014-Sep-27.83706523)
0.00017516 TDB
node 85.06776101508726 9.7211e-05 deg
peri 114.9423005079259 0.00010268 deg
i 3.266025686437167 5.9367e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:03  

Additional Information
 Jupiter MOID = 1.72458 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.814745740194314E-15 -8.083122238546716E-15 1.609079007529035E-12 1.132887483189277E-14 3.18754861342148E-13 1.277167493811141E-16
q -8.083122238546716E-15 2.381040365870172E-14 -3.37997816274766E-12 -3.81767853704183E-14 -6.819378151896736E-13 -1.11986894415612E-16
tp 1.609079007529035E-12 -3.37997816274766E-12 3.067941767474656E-8 8.300794190020159E-12 5.828097319802096E-9 2.539836333619299E-12
node 1.132887483189277E-14 -3.81767853704183E-14 8.300794190020159E-12 9.450008792300388E-9 -9.432985639856389E-9 -8.554635139296373E-11
peri 3.18754861342148E-13 -6.819378151896736E-13 5.828097319802096E-9 -9.432985639856389E-9 1.054288247683539E-8 8.588523357970607E-11
i 1.277167493811141E-16 -1.11986894415612E-16 2.539836333619299E-12 -8.554635139296373E-11 8.588523357970607E-11 3.524474100270113E-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 15.7   n/a MPO433109  

172765 (2004 DW51)          Discovered 2004-Feb-23 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ 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
1904-Oct-17 19:34 00:05 Jupiter 1.71541432419993 1.71541346175618 1.71541518664701 2.09626003436019 1.84574195136969 2416771.315155935 4.61264959061297 212.956953218386 15.0985394570282 -88.7739070272943 1608611.97066818 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
1940-Oct-31 15:44 00:03 Jupiter 1.75496454376588 1.75496340982103 1.75496567771023 2.26238244450224 2.03791241205926 2429934.155322610 3.08159185809639 105.147394635298 13.9065041184843 88.7834601306164 1215463.48342011 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
1976-Nov-24 13:02 00:02 Jupiter 1.84174940096427 1.84174840416663 1.84175039776138 2.59372853196798 2.40990156692885 2443107.042776786 1.59564472135945 67.3501997878148 24.3009123661874 -87.0441638930574 1338933.07832607 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2012-Dec-22 01:34 < 00:01 Jupiter 1.95069063440231 1.95069005885159 1.95069120995292 3.01509771632419 2.86746940201663 2456283.564995188 0.232414752493589 53.1741564085762 17.9888400470519 -85.8482951881585 2277315.87828401 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2021-Aug-11 06:42 < 00:01 Jupiter 1.92881161645641 1.92881114136554 1.92881209154717 2.92843380503461 2.77442610525881 2459437.779163257 0.359039824993715 55.1604979794844 14.5855084572857 88.9809548846073 2786590.91538937 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2057-Sep-07 09:55 00:02 Jupiter 1.82923364244231 1.8292328148771 1.82923447000826 2.51532382274702 2.32395319239396 2472613.912910090 1.79823906337078 108.88617838836 13.4455130046287 -83.3245087161705 2205380.89391071 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2093-Oct-01 13:28 00:03 Jupiter 1.75044727900538 1.75044631216835 1.75044824584857 2.21409633184817 1.98354334131971 2485787.060834705 3.31029179688979 218.873015460477 8.65424036646869 -88.1869377620895 2114270.59637277 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2129-Oct-16 18:17 00:05 Jupiter 1.70785840639952 1.70785768704094 1.70785912576839 2.06782105729866 1.81217329510073 2498950.261714238 4.87938765302415 312.079147254709 15.824114375083 -89.5653298630351 1940339.24944762 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
2165-Oct-27 05:45 00:07 Jupiter 1.71140243692381 1.7114018247264 1.71140304912491 2.08584469031418 1.83327310663517 2512109.739495444 6.63537189914184 305.816827768297 16.4744267347698 -88.6429486065551 1776619.32852405 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:21:05 2020-May-21 03:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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