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73961 (1997 WP25)
Classification: Main-belt Asteroid          SPK-ID: 2073961
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2315080372006736 4.1345e-08  
a 3.175493817091475 2.0152e-08 au
q 2.440341476353753 1.3401e-07 au
i 28.91213498944493 6.1204e-06 deg
node 290.4751295310648 9.8779e-06 deg
peri 151.0687814745363 2.0298e-05 deg
M 38.89608805240979 1.4317e-05 deg
tp 2458977.184556507871
(2020-May-07.68455651)
8.1662e-05 TDB
period 2066.880338939009
5.66
1.9675e-05
5.387e-08
d
yr
n .1741755404112067 1.658e-09 deg/d
Q 3.910646157829197 2.4817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      8510 days (23.30 yr)  
   first obs. used      1997-11-30  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:18:17  

Additional Information
 Earth MOID = 1.48321 au 
 Jupiter MOID = 1.37889 au 
 T_jup = 2.969 
[ 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 13.50   n/a MPCxxxxx  
diameter diameter 14.447 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

73961 (1997 WP25)          Discovered 1997-Nov-30 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ 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
1949-Dec-03 14:48 00:02 Jupiter 1.80016004962559 1.80015618116773 1.800163918086 7.05182506838792 6.98478234068305 2433254.116340677 2.08641160802852 223.626079597105 64.7916993185932 -32.013908151567 2502766.9974708 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18
1961-Mar-08 20:26 00:01 Jupiter 1.41628802525159 1.41628709904585 1.41628895145894 7.03135702275089 6.94578040263214 2437367.351221226 1.263414651889 130.162994994748 36.1999234313267 -76.8343198320887 3776095.20087776 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18
1972-Jul-08 19:49 < 00:01 Jupiter 1.58228477930052 1.58228340689143 1.58228615170979 7.23064114699819 7.15622380898374 2441507.325724849 0.949856683695498 108.185298070406 63.200609995484 -73.1740824189457 2739364.4823386 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18
2080-Jul-13 03:23 00:01 Jupiter 1.93967182821904 1.93966938326578 1.93967427317295 7.13209341389862 7.07060037348906 2480958.641256363 1.29282266717956 139.742679127448 69.0116027563161 -34.2532402444622 2922157.29016244 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18
2091-Oct-07 01:19 00:01 Jupiter 1.4437711590677 1.44377008833875 1.44377222979878 7.04404059901981 6.9602557883459 2485061.554607431 1.21757409479427 139.017323868834 39.0690608542096 -74.2407334173016 3652389.2084221 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18
2103-Feb-07 11:02 00:02 Jupiter 1.5013365250887 1.50133463294826 1.50133841722981 7.15160685365516 7.07227846078556 2489201.959933295 1.54050398263823 119.2476220641 64.173957739829 47.0078992936806 1924251.60525571 T 34 CATAB v2.0g-lin.ifort 2021-May-04 07:18:24 2021-May-04 07:18

Alternate Designations
 1997 WP25 = 2001 QM126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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