anchor.diff:          .domain([0, 0.5])
           .rangeRound([0, 10 * 75])),
   
  +    barChart()
  +        .dimension(period)
  +        .group(periods)
  +      .x(d3.scale.linear()
  +        .domain([0, 2.0])
  +        .rangeRound([0, 10 * 20])),
  +
  +    barChart()
  +        .dimension(energy)
  +        .group(energys)
  +      .x(d3.scale.linear()
  +        .domain([0, 2.0])
  +        .rangeRound([0, 10 * 20])),
   
   
       // barChart()
  
positive.code: 
        sun_distance = asteroid.dimension(function(d) { return Math.min(1, +d.perihelion_distance); }),
        sun_distances = sun_distance.group(function(d) { return Math.floor(d * 20) / 20.0; }),
  
        designation = asteroid.dimension(function(d) { return d.designation});
  
  
negative.code:   // // A little coercion, since the CSV is untyped.
    asteroids_temp.forEach(function(d, i) {
      d.index = i;
      if(d.close_app_dist != null) {
        asteroids.push(d)
  
      }
    });
  
    //RXIE
    console.log("total count of asteroids: " + asteroids.length)
  
  
  
  
  /***
  // FIELD CHANGES
  absolute_magnitude      :       21.4
  aphelion_distance       :       2.738
  designation     :       2013 GF
  delta_v :       6.38464
  earth_moid      :       0.05096
  id      :       5819910
  km_neo  :       false
  mean_daily_motion       :       0.3805738
  n_or_d  :       K13G00F
  name    :       null
  neo     :       true
  number  :       null
  perihelion_distance     :       1.033777023
  period  :       2.59
  pha     :       true
  torino  :       null
  
  ==============
  New JSON fields:
  
  designation     :       2009 UK
  close_app_date  :       2023 12 12
  close_app_dist  :       83
  impact_prob     :       0
  taxonomy_class  :
  pha     :       false
  size    :       372
  spin_period     :
  delta_v :       5.8
  period  :       2.78
  url     :       http://minorplanetcenter.net/db_search/show_object?object_id=2009 UK
  ***/
  
  
  
  
  
  
  
  
  
    // Create the crossfilter for the relevant dimensions and groups.
    var asteroid = crossfilter(asteroids),
        all = asteroid.groupAll(),
  /*
        speed = asteroid.dimension(function(d) { return Math.min(100, +d.mean_daily_motion); }),
        speeds = speed.group(function(d) { return Math.floor(d * 10) / 10.0; });
  
  