Understanding HSP - skipped stops

[Oli C]

I'm having a bit of trouble understanding the HSP responses.

For example "rid":"201802127171925". HSP response below[1].

This doesn't seem to tie in with the National Rail site at the time - which presumably came from LDBWS: https://pbs.twimg.com/media/DV0flKbXUAA5bKt.jpg:large. The screenshot shows it skipping Angmering/ANG to West Worthing/WWO, presumably due to reason 575, and then stopping at Worthing/WRH.

How can I tell from this data which stops it skipped, and which it serviced? Is it even possible to get this data historically, or do I have to be getting it live from LDBSVWS?

Thanks in advance,
Oli


[1]

{
  "serviceAttributesDetails": {
    "date_of_service": "2018-02-12",
    "toc_code": "SN",
    "rid": "201802127171925",
    "locations": [
      {
        "location": "LIT",
        "gbtt_ptd": "0729",
        "gbtt_pta": "",
        "actual_td": "0742",
        "actual_ta": "",
        "late_canc_reason": "575"
      },
      {
        "location": "ANG",
        "gbtt_ptd": "0738",
        "gbtt_pta": "0738",
        "actual_td": "0751",
        "actual_ta": "0752",
        "late_canc_reason": "575"
      },
      {
        "location": "GBS",
        "gbtt_ptd": "0742",
        "gbtt_pta": "0742",
        "actual_td": "0753",
        "actual_ta": "",
        "late_canc_reason": "575"
      },
      {
        "location": "DUR",
        "gbtt_ptd": "0745",
        "gbtt_pta": "0745",
        "actual_td": "0754",
        "actual_ta": "0754",
        "late_canc_reason": "575"
      },
      {
        "location": "WWO",
        "gbtt_ptd": "0747",
        "gbtt_pta": "0747",
        "actual_td": "0756",
        "actual_ta": "0756",
        "late_canc_reason": "575"
      },
      {
        "location": "WRH",
        "gbtt_ptd": "0750",
        "gbtt_pta": "0750",
        "actual_td": "0758",
        "actual_ta": "0756",
        "late_canc_reason": "575"
      },
      {
        "location": "LAC",
        "gbtt_ptd": "0754",
        "gbtt_pta": "0754",
        "actual_td": "0801",
        "actual_ta": "0800",
        "late_canc_reason": "575"
      },
      {
        "location": "SSE",
        "gbtt_ptd": "0759",
        "gbtt_pta": "0758",
        "actual_td": "0803",
        "actual_ta": "0803",
        "late_canc_reason": "575"
      },
      {
        "location": "PLD",
        "gbtt_ptd": "0804",
        "gbtt_pta": "0803",
        "actual_td": "0805",
        "actual_ta": "0806",
        "late_canc_reason": "575"
      },
      {
        "location": "HOV",
        "gbtt_ptd": "0808",
        "gbtt_pta": "0807",
        "actual_td": "0809",
        "actual_ta": "0809",
        "late_canc_reason": "575"
      },
      {
        "location": "PRP",
        "gbtt_ptd": "0812",
        "gbtt_pta": "0812",
        "actual_td": "0812",
        "actual_ta": "0812",
        "late_canc_reason": "575"
      },
      {
        "location": "HSK",
        "gbtt_ptd": "0819",
        "gbtt_pta": "0819",
        "actual_td": "0816",
        "actual_ta": "0817",
        "late_canc_reason": "575"
      },
      {
        "location": "BUG",
        "gbtt_ptd": "0823",
        "gbtt_pta": "0823",
        "actual_td": "0817",
        "actual_ta": "0819",
        "late_canc_reason": "575"
      },
      {
        "location": "HHE",
        "gbtt_ptd": "0829",
        "gbtt_pta": "0828",
        "actual_td": "0828",
        "actual_ta": "0823",
        "late_canc_reason": "575"
      },
      {
        "location": "TBD",
        "gbtt_ptd": "0838",
        "gbtt_pta": "0837",
        "actual_td": "0837",
        "actual_ta": "0837",
        "late_canc_reason": "575"
      },
      {
        "location": "GTW",
        "gbtt_ptd": "0843",
        "gbtt_pta": "0842",
        "actual_td": "0842",
        "actual_ta": "0841",
        "late_canc_reason": "575"
      },
      {
        "location": "ECR",
        "gbtt_ptd": "0858",
        "gbtt_pta": "0857",
        "actual_td": "0858",
        "actual_ta": "0856",
        "late_canc_reason": "575"
      },
      {
        "location": "CLJ",
        "gbtt_ptd": "0909",
        "gbtt_pta": "0909",
        "actual_td": "0914",
        "actual_ta": "0913",
        "late_canc_reason": "575"
      },
      {
        "location": "VIC",
        "gbtt_ptd": "",
        "gbtt_pta": "0921",
        "actual_td": "",
        "actual_ta": "0922",
        "late_canc_reason": "575"
      }
    ]
  }
}