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85528 (1997 WP12)
Classification: Main-belt Asteroid          SPK-ID: 2085528
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811799245680659 5.472e-08  
a 3.032059371003862 1.8312e-08 au
q 2.482711082879485 1.6678e-07 au
i .8557365107818066 6.5186e-06 deg
node 350.3030445199151 0.00032282 deg
peri 53.31978304538531 0.00032346 deg
M 92.2113049005593 1.7381e-05 deg
tp 2458506.545842142753
(2019-Jan-23.04584214)
9.2199e-05 TDB
period 1928.434881388718
5.28
1.747e-05
4.783e-08
d
yr
n .1866798840211572 1.6912e-09 deg/d
Q 3.581407659128239 2.163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      8131 days (22.26 yr)  
   first obs. used      1997-11-01  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:46  

Additional Information
 Earth MOID = 1.49179 au 
 Jupiter MOID = 1.82731 au 
 T_jup = 3.217 
[ 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 15.8   n/a MPO459396  
diameter diameter 5.091 km 2.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85528 (1997 WP12)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1900-Aug-18 02:48 00:03 Jupiter 1.87049177014201 1.87049105210687 1.87049248817662 2.08925192492595 1.85992078950573 2415249.616405135 3.31639520843091 76.9799786681486 21.373654368082 79.334959240367 1303146.10281767 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
1948-May-07 13:03 00:02 Jupiter 1.89079340918139 1.89079275452878 1.89079406383358 2.24697963438518 2.03788455659584 2432679.044042055 1.97064769904535 67.674750520862 8.88589983149395 87.0130212290775 1540376.75652095 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
1957-Aug-28 06:28 00:02 Jupiter 1.99993190508987 1.99993101180634 1.99993279837396 2.33810449570985 2.14934438308674 2436078.769222949 1.66066823668304 106.1419135675 6.29382874602871 86.1701309560679 1771189.69621799 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
1996-Jan-27 01:06 < 00:01 Jupiter 1.91860763847848 1.91860706868917 1.91860820826756 2.44191033882729 2.2538790280973 2450109.545614881 0.689418699694115 63.3505506668826 9.57699361521905 88.8989449586034 2085391.43677699 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2005-May-16 16:56 < 00:01 Jupiter 1.96434123811726 1.96434049594586 1.96434198028843 2.18216258740314 1.97469871368177 2453507.205871675 0.444388302923055 66.6282851183246 5.15972083663262 87.4235291209577 1757239.1627332 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2043-Oct-17 02:29 < 00:01 Jupiter 1.94545119337029 1.94545059878893 1.94545178795153 2.65163019484516 2.4820093430927 2467539.603141580 0.871813447520945 59.861071996868 14.094175107877 89.1001549663621 2053863.04077662 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2053-Feb-03 18:39 00:01 Jupiter 1.92768397642806 1.92768319813854 1.92768475471758 2.03922626527681 1.81097919723924 2470937.277181665 1.11110386664468 85.1071439238185 12.8408407642218 -89.2405621341603 1736562.70611705 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2091-Jul-06 20:31 00:02 Jupiter 1.97111026636541 1.97110943830567 1.97111109442482 2.87748772871156 2.72405922485741 2484969.355206056 2.14778074135559 58.2994662714301 20.5753105904492 85.8499717247006 1397086.05395073 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2100-Oct-25 17:51 00:02 Jupiter 1.89627420642701 1.89627331234658 1.89627510050821 1.92783582269203 1.68023703475631 2488367.243483862 2.43632376053188 122.135965694159 21.6620990708114 -86.6350258527383 1721903.75953105 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2148-Jul-15 10:42 00:04 Jupiter 1.87085704749211 1.87085606364786 1.87085803133775 1.85486097762918 1.59217392638602 2505796.945840544 3.77976184392566 145.95971932235 28.8022850333633 -86.7419681685413 1736234.46512252 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34
2196-Apr-03 15:08 00:05 Jupiter 1.85237614349794 1.85237517222317 1.85237711477471 1.81666882486211 1.54459063194314 2523226.130278202 5.12224288802119 154.138609857363 33.1603300651054 89.1058090861039 1812982.46045182 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 20:34:01 2020-Feb-23 20:34

Alternate Designations
 1997 WP12 = 2002 RQ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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