curl -sv -b /tmp/cookie-jar.txt -c /tmp/cookie-jar.txt "http://api.olhovivo.sptrans.com.br/v0/Posicao?codigoLinha=33461" | jq .

> GET /v0/Posicao?codigoLinha=33461 HTTP/1.1
> User-Agent: curl/7.22.0 (i686-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3
> Host: api.olhovivo.sptrans.com.br
> Accept: */*
> Cookie: apiCredentials=2E423A1C7F3FE250369AC103F20088EB86A96B537B12800501F1A7958D72DD0DCF4E1FA5565C97EA39940C25143C5426951DCE46D355882EB418484D5F75EF1418854E023CB05B5904671AB9A9A3FB70867CDB7573B8F86ECA803615A101A9CE2D0A6C52D801C23B43A27605136CD458EDA914FFAE8AF94A907C93FB63027D4A3DCAE8FA03867399481A4DC6FCC68F4AE59EC51059739909C883AF2C15ABAC0EF2B8E9C90DBDBC62C700D1DE5A3A6C5023435E983C99AF91EF0A234AC18394F13742670249B93E96C21A0ED2DDA7BC98
>
< HTTP/1.1 200 OK
< Cache-Control: no-cache
< Pragma: no-cache
< Content-Type: application/json; charset=utf-8
< Expires: -1
< Server: Microsoft-IIS/7.5
< X-AspNet-Version: 4.0.30319
< X-Powered-By: ASP.NET
< Date: Sat, 06 Sep 2014 08:32:00 GMT
< Content-Length: 153
<
{
  "hr": "05:32",
  "vs": [
    {
      "p": "22850",
      "a": true,
      "py": -23.516589875,
      "px": -46.604841875000005
    },
    {
      "p": "22822",
      "a": true,
      "py": -23.554221000000002,
      "px": -46.6331835
    }
  ]
}