Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
85520 (1997 WO2)
Classification: Main-belt Asteroid          SPK-ID: 2085520
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165918507062492 4.4439e-08  
a 2.33473318758096 9.2672e-09 au
q 1.947357742708274 1.0569e-07 au
i 6.68849376513688 4.1452e-06 deg
node 93.48391416252289 4.3291e-05 deg
peri 293.5535894835235 4.5362e-05 deg
M 140.900646980737 1.4508e-05 deg
tp 2458490.506314992237
(2019-Jan-07.00631499)
5.1507e-05 TDB
period 1303.029691750776
3.57
7.7581e-06
2.124e-08
d
yr
n .2762791993759537 1.6449e-09 deg/d
Q 2.722108632453645 1.0805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1549  
   data-arc span      8193 days (22.43 yr)  
   first obs. used      1997-11-23  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:37:21  

Additional Information
 Earth MOID = .963778 au 
 Jupiter MOID = 2.73397 au 
 T_jup = 3.541 
[ 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 15.2   n/a MPO359339  
diameter diameter 2.623 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.282   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85520 (1997 WO2)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
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
1953-Nov-06 00:13 00:02 Thisb 0.0496302067055419 0.0496232627660008 0.0496371514717679 4.63483163692652 4.63483160728539 2434687.509198267 1.99364439028135 471.570972361339 27.2376739187425 -42.8651645063966 185711.135583167 T 18 CATAB v2.0f-lin.ifort 2020-May-20 15:37:38 2020-May-20 15:37

Alternate Designations
 1997 WO2 = 2002 CZ162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-20 23:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin