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101488 (1998 WM42)
Classification: Main-belt Asteroid          SPK-ID: 2101488
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172166108703899 5.0207e-08  
a 2.997826523031325 1.8029e-08 au
q 2.646431458024229 1.522e-07 au
i 6.877807539794388 4.7893e-06 deg
node 230.9904000248563 4.4707e-05 deg
peri 146.2689327666828 4.9121e-05 deg
M 120.361151809436 2.2225e-05 deg
tp 2458566.641953676135
(2019-Mar-24.14195368)
0.00011476 TDB
period 1895.868336636356
5.19
1.7102e-05
4.682e-08
d
yr
n .1898866039604369 1.7129e-09 deg/d
Q 3.349221588038422 2.0142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:01  

Additional Information
 Earth MOID = 1.65071 au 
 Jupiter MOID = 2.12473 au 
 T_jup = 3.232 
[ 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 14.70   n/a E2021B55  
diameter diameter 4.696 km 1.479 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101488 (1998 WM42)          Discovered 1998-Nov-19 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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