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118949 (2000 WM88)
Classification: Main-belt Asteroid          SPK-ID: 2118949
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065408618373461 4.3469e-08  
a 3.106776724950589 2.1957e-08 au
q 2.465100382643087 1.3572e-07 au
i 18.51245987660536 6.0901e-06 deg
node 90.87667428638926 1.7875e-05 deg
peri 53.33742371089892 2.4061e-05 deg
M 209.7667403246325 1.6735e-05 deg
tp 2460035.193594790452
(2023-Mar-31.69359479)
9.6916e-05 TDB
period 2000.154258610097
5.48
2.1204e-05
5.805e-08
d
yr
n .179986117795816 1.908e-09 deg/d
Q 3.748453067258091 2.6492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      7644 days (20.93 yr)  
   first obs. used      1999-10-16  
   last obs. used      2020-09-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:59:38  

Additional Information
 Earth MOID = 1.52485 au 
 Jupiter MOID = 1.59119 au 
 T_jup = 3.109 
[ 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 13.89   n/a E2021B55  
diameter diameter 5.728 km 1.539 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118949 (2000 WM88)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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