{"columns":[{"name":"datetime_utc","type":"timestamp[ns]"},{"name":"id","type":"double"},{"name":"latitude","type":"double"},{"name":"longitude","type":"double"},{"name":"rho_ppb","type":"double"},{"name":"ph_total","type":"double"},{"name":"vrse","type":"double"},{"name":"ph_corrected","type":"double"},{"name":"temp","type":"double"},{"name":"salinity","type":"double"},{"name":"ph_corrected_ma","type":"double"},{"name":"ph_total_ma","type":"double"},{"name":"__index_level_0__","type":"int64"}],"n_rows":9,"rows_kept":9,"cut":false,"text_format":"parquet-jsonl-2026-10-02","bounds":{"document_bytes":16777216,"package_text_limit_bytes":33554432,"package_text_slack_bytes":1024,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096,"vector_min":64,"vector_head_fixed":16,"vector_head_variable":64,"kv_value_chars":1048576,"nesting_max":64,"binary_text":true},"cells_cut":0,"cells_bad_utf8":0,"cells_raw":0,"cells_binary":0,"cells_binary_text":0,"cells_vector":0,"n_row_groups":1,"reader":"pyarrow 23.0.1, python 3.13","created_by":"parquet-cpp-arrow version 20.0.0","schema":{"fields":[{"name":"datetime_utc","type":"timestamp[ns]","nullable":true,"metadata":null,"children":null},{"name":"id","type":"double","nullable":true,"metadata":null,"children":null},{"name":"latitude","type":"double","nullable":true,"metadata":null,"children":null},{"name":"longitude","type":"double","nullable":true,"metadata":null,"children":null},{"name":"rho_ppb","type":"double","nullable":true,"metadata":null,"children":null},{"name":"ph_total","type":"double","nullable":true,"metadata":null,"children":null},{"name":"vrse","type":"double","nullable":true,"metadata":null,"children":null},{"name":"ph_corrected","type":"double","nullable":true,"metadata":null,"children":null},{"name":"temp","type":"double","nullable":true,"metadata":null,"children":null},{"name":"salinity","type":"double","nullable":true,"metadata":null,"children":null},{"name":"ph_corrected_ma","type":"double","nullable":true,"metadata":null,"children":null},{"name":"ph_total_ma","type":"double","nullable":true,"metadata":null,"children":null},{"name":"__index_level_0__","type":"int64","nullable":true,"metadata":null,"children":null}],"parquet":"required group field_id=-1 schema {\n  optional int64 field_id=-1 datetime_utc (Timestamp(isAdjustedToUTC=false, timeUnit=nanoseconds, is_from_converted_type=false, force_set_converted_type=false));\n  optional double field_id=-1 id;\n  optional double field_id=-1 latitude;\n  optional double field_id=-1 longitude;\n  optional double field_id=-1 rho_ppb;\n  optional double field_id=-1 ph_total;\n  optional double field_id=-1 vrse;\n  optional double field_id=-1 ph_corrected;\n  optional double field_id=-1 temp;\n  optional double field_id=-1 salinity;\n  optional double field_id=-1 ph_corrected_ma;\n  optional double field_id=-1 ph_total_ma;\n  optional int64 field_id=-1 __index_level_0__;\n}\n"},"kv_metadata":[["ARROW:schema",{"$cut":{"chars":3680,"head":""}}],["pandas","{\"index_columns\": [\"__index_level_0__\"], \"column_indexes\": [{\"name\": null, \"field_name\": null, \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": {\"encoding\": \"UTF-8\"}}], \"columns\": [{\"name\": \"datetime_utc\", \"field_name\": \"datetime_utc\", \"pandas_type\": \"datetime\", \"numpy_type\": \"datetime64[ns]\", \"metadata\": null}, {\"name\": \"id\", \"field_name\": \"id\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"latitude\", \"field_name\": \"latitude\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"longitude\", \"field_name\": \"longitude\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"rho_ppb\", \"field_name\": \"rho_ppb\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"ph_total\", \"field_name\": \"ph_total\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"vrse\", \"field_name\": \"vrse\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"ph_corrected\", \"field_name\": \"ph_corrected\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"temp\", \"field_name\": \"temp\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"salinity\", \"field_name\": \"salinity\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"ph_corrected_ma\", \"field_name\": \"ph_corrected_ma\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"ph_total_ma\", \"field_name\": \"ph_total_ma\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"partition\", \"field_name\": \"partition\", \"pandas_type\": \"datetime\", \"numpy_type\": \"datetime64[ns]\", \"metadata\": null}, {\"name\": null, \"field_name\": \"__index_level_0__\", \"pandas_type\": \"int64\", \"numpy_type\": \"int64\", \"metadata\": null}], \"creator\": {\"library\": \"pyarrow\", \"version\": \"20.0.0\"}, \"pandas_version\": \"2.3.0\"}"]]}
["2025-08-06T09:41:00.000000000",7980.0,42.49996786305828,-69.50005065392334,1.5060464725967178,8.192521599865923,0.47064578244589417,32.315017697712435,15.17257251193833,35.04455593784832,32.75562803581069,8.208231475763828,0]
["2025-08-06T10:47:00.000000000",8007.5,42.5,-69.5,1.474651904615502,8.199403189141465,0.5078792025134684,32.96226104917004,15.219289210785556,35.02301148069118,32.973010889192594,8.220518214735621,66]
["2025-08-06T10:48:00.000000000",8035.5,42.500030195355954,-69.4999617488713,1.349620954337034,8.20328026069428,0.4800052928458455,32.504112231155915,14.913965866939707,34.97909816243308,32.822280776225924,8.201697045044464,67]
["2025-08-06T10:49:00.000000000",8065.5,42.50012050780918,-69.50010421902873,1.5508775008218565,8.195042516673837,0.4994808410997507,32.844716023201926,14.943733951889461,35.16306546718876,32.69363762030663,8.200703139909399,68]
["2025-08-06T10:50:00.000000000",8095.5,42.50003532738535,-69.50001125843774,1.5333457649160107,8.213596049659701,0.5053886471835277,32.922557517147375,15.170839222033617,34.98083691584677,32.7523305570288,8.204434605728313,69]
["2025-08-06T10:51:00.000000000",8125.5,42.5,-69.5,1.45423520138889,8.194061613856041,0.48357886270054384,32.57447068946274,14.84659299266305,35.02525605618252,32.83460946494967,8.200484617683337,70]
["2025-08-06T10:52:00.000000000",8155.5,42.5,-69.5,1.4880395905461639,8.218612923102254,0.4964807169712039,32.7806164801879,15.025564146671309,34.96445892710799,32.7320010475406,8.204262360752104,71]
["2025-08-06T10:53:00.000000000",8185.5,42.49994278971806,-69.50005383382768,1.5068382034698493,8.181934878819051,0.49445627097779965,32.73500602806677,15.1678812594291,34.97722320400443,32.737397233018285,8.205216091571124,72]
["2025-08-06T10:54:00.000000000",8211.5,42.499998280024926,-69.4999754265027,1.4203086388605708,8.200903059605995,0.48854607534706224,32.63501387982907,15.127410965524348,34.95848808456006,32.82266850629021,8.19659790677992,73]