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70419 (1999 SQ12)
Classification: Main-belt Asteroid          SPK-ID: 2070419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286505256319589 4.191e-08  
a 2.350856207837999 9.5201e-09 au
q 2.048417321014486 1.0184e-07 au
i 6.702200099455378 4.6463e-06 deg
node 324.7258388320084 2.9465e-05 deg
peri 26.39671739526385 3.3058e-05 deg
M 251.9417144124925 1.6173e-05 deg
tp 2459395.678308451037
(2021-Jun-30.17830845)
6.0227e-05 TDB
period 1316.550510392517
3.60
7.9973e-06
2.19e-08
d
yr
n .2734418445462222 1.661e-09 deg/d
Q 2.653295094661511 1.0745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      7644 days (20.93 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53467  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:35:29  

Additional Information
 Earth MOID = 1.04428 au 
 Jupiter MOID = 2.75022 au 
 T_jup = 3.537 
[ 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 15.5   n/a MPO379085  
diameter diameter 1.638 km 0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.379   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70419 (1999 SQ12)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SQ12 = 1999 NZ64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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