How to visualize data on bettermap in Banana Solr Dashboard?

I am trying to visualize a set of indexed data through Banana and it's bettermap panel.

Below is my indexed data for storing the lat long information:

{
        "user_lang":"en",
        "user_screenname":"Kashyep2",
        "latlonggis_0_coordinate":25.25,
        "latlonggis_1_coordinate":86.98,
        "latlonggis":"25.25,86.98",
        "longlatgis_0_coordinate":86.98,
        "longlatgis_1_coordinate":25.25,
        "longlatgis":"86.98,25.25",
        "timestamp":"2019-02-09T08:09:09.280Z",
        "_version_":1624977964309413888}
  }

I do not get any thing on the bettermap panel.

My question is whether the data format shown above to represent the lat long information is correct?

In the banana sourcecode inside panels/bettermap/module.js the following changes had to be made.

//var sorting = '&sort=' + filterSrv.getTimeField() + ' desc'; // Only get the latest data, sorted by time field.

// Removed the sorting field from the final query
$scope.panel.queries.query = querySrv.getORquery() + wt_json + rows_limit + fq;

The filterSrv.getTimeField() is undefined for the query and hence the locations could not be displayed on the map.