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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
277485 (2005 WB57)
Classification: Main-belt Asteroid          SPK-ID: 2277485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3538235286956561 6.7005e-08  
a 2.671719346899756 1.4259e-08 au
q 1.72640217989523 1.8433e-07 au
i 4.564230393151377 5.5802e-06 deg
node 132.1363935861999 8.3228e-05 deg
peri 243.8718459849766 8.3711e-05 deg
M 41.84825101669536 6.2703e-06 deg
tp 2458415.078755692179
(2018-Oct-23.57875569)
2.7718e-05 TDB
period 1595.088117880601
4.37
1.2769e-05
3.496e-08
d
yr
n .2256928604535863 1.8068e-09 deg/d
Q 3.617036513904281 1.9304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8174 days (22.38 yr)  
   first obs. used      1996-08-15  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:39:52  

Additional Information
 Earth MOID = .732806 au 
 Jupiter MOID = 1.85511 au 
 T_jup = 3.284 
[ 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 16.8   n/a MPO455059  

277485 (2005 WB57)          Discovered 2005-Nov-20 by LONEOS at Anderson Mesa
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ 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
1981-Aug-26 12:28 < 00:01 Jupiter 1.84805255399859 1.8480520237686 1.84805308423321 0.496451976292131 n/a 2444843.019290577 0.721051612582601 223.204609879094 19.9072146586659 -85.5106890467743 13841794.7601335 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39
2064-Oct-05 08:32 00:01 Jupiter 1.85233299167332 1.85233239549119 1.85233358785763 0.451197920067208 n/a 2475198.855601647 1.14388871386563 194.791365636099 25.4049139663613 -85.4142326921489 10870393.4666144 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39
2147-Nov-15 20:56 00:03 Jupiter 1.85096734323134 1.85096663106342 1.85096805539991 0.398080709258062 n/a 2505554.372304383 2.86113383664027 221.765364243364 34.3840215123387 -87.6762230331463 8044633.25424983 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39

Alternate Designations
 2005 WB57 = 2002 AF146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 00:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin