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101465 (1998 WL12)
Classification: Mars-crossing Asteroid          SPK-ID: 2101465
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .301547211417998 4.2438e-08  
a 2.288528772710088 9.4826e-09 au
q 1.598429303049508 9.9905e-08 au
i 3.130304736702889 5.0056e-06 deg
node 263.9653581957729 8.1454e-05 deg
peri 86.77528776115655 8.2026e-05 deg
M 116.670198846622 1.0215e-05 deg
tp 2458590.682566070772
(2019-Apr-17.18256607)
3.4477e-05 TDB
period 1264.541225377312
3.46
7.8595e-06
2.152e-08
d
yr
n .2846882274578148 1.7694e-09 deg/d
Q 2.978628242370668 1.2342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      10347 days (28.33 yr)  
   first obs. used      1991-10-05  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56016  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:20:34  

Additional Information
 Earth MOID = .596604 au 
 Jupiter MOID = 2.47526 au 
 T_jup = 3.536 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3029906704911297 4.2459e-08  
q 1.594255060856753 1.0002e-07 au
tp 2457326.141861823382
(2015-Oct-30.64186182)
3.0585e-05 TDB
node 264.0974224446765 8.1596e-05 deg
peri 86.61223041590823 8.2153e-05 deg
i 3.127767498114773 5.0048e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      10347 days (28.33 yr)  
   first obs. used      1991-10-05  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56016  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:20:34  

Additional Information
 Jupiter MOID = 2.47526 au 
 T_jup = 3.536 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.802777141528634E-15 -4.238874497974165E-15 -6.913980473954904E-13 2.858937014849629E-14 -2.190054601462112E-13 -3.002442528989817E-15
q -4.238874497974165E-15 1.000350601682428E-14 1.650403646871974E-12 -6.719832886477342E-14 5.177048504400809E-13 7.32359293600404E-15
tp -6.913980473954904E-13 1.650403646871974E-12 9.354199812920354E-10 -2.240523110811256E-11 3.075242726977274E-10 3.139793819025442E-12
node 2.858937014849629E-14 -6.719832886477342E-14 -2.240523110811256E-11 6.657930848950884E-9 -6.65399228444401E-9 1.238975078670251E-10
peri -2.190054601462112E-13 5.177048504400809E-13 3.075242726977274E-10 -6.65399228444401E-9 6.749093774728439E-9 -1.228797317841224E-10
i -3.002442528989817E-15 7.32359293600404E-15 3.139793819025442E-12 1.238975078670251E-10 -1.228797317841224E-10 2.504761926489652E-11

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 16.0   n/a MPO412743  
diameter diameter 1.463 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.329   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

101465 (1998 WL12)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 WL12 = 1991 TC5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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