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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0643839919360048 3.4767e-08  
a 2.576606717869919 1.2918e-08 au
q 2.410714491724326 9.2835e-08 au
i 2.222951426520083 4.1987e-06 deg
node 291.5838486228237 0.00010315 deg
peri 100.9826208057694 0.0001101 deg
M 358.9573341473156 3.8605e-05 deg
tp 2458604.875354829391
(2019-May-01.37535483)
0.00016201 TDB
period 1510.673562892186
4.14
1.1361e-05
3.11e-08
d
yr
n .2383042960722631 1.7921e-09 deg/d
Q 2.742498944015511 1.3749e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55365  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:46:22  

Additional Information
 Earth MOID = 1.41683 au 
 Jupiter MOID = 2.52793 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 ]
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