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 ]  
74356 (1998 WP12)
Classification: Main-belt Asteroid          SPK-ID: 2074356
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06461583775287287 3.3474e-08  
a 2.576827322557112 1.2315e-08 au
q 2.410323466365592 8.8521e-08 au
i 2.223129498937654 4.1603e-06 deg
node 291.581043611574 9.9752e-05 deg
peri 100.8962604618617 0.00010662 deg
M 94.3352861051177 3.7584e-05 deg
tp 2458604.588540745071
(2019-May-01.08854074)
0.00015694 TDB
period 1510.867578998546
4.14
1.0831e-05
2.965e-08
d
yr
n .2382736945342491 1.7081e-09 deg/d
Q 2.743331178748632 1.311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1179  
   data-arc span      7753 days (21.23 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54966  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:14:36  

Additional Information
 Earth MOID = 1.41711 au 
 Jupiter MOID = 2.52675 au 
 T_jup = 3.423 
[ 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 15.0   n/a MPO449469  
diameter diameter 2.738 km 0.600 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.258   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74356 (1998 WP12)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WP12 = 2000 DB71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-05 08:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin