{ "startDate": "2022-11-01T00:00Z", "stopDate": "2025-11-20T23:59Z", "sampleStartDate": "2025-11-19T00:00Z", "sampleStopDate": "2025-11-19T23:59Z", "cadence": "PT1M", "x_cadence_fraction": 1, "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/biosentinel/let_lets/2022/biosentinel_let_lets_20221117_v01.cdf. The most common cadence, 60000 [ms] = PT1M, occurred for all 1439 timesteps. ", "maxRequestDuration": "PT71950M", "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesB.html#BIOSENTINEL_LET_LETS", "contact": "Sergio Santa Maria, Stuart George @ NASA", "resourceID": " ", "additionalMetadata": { "name": "SPASE", "contentURL": " .html" }, "parameters": [ { "name": "Time", "type": "isotime", "units": "UTC", "length": 24, "fill": null, "x_description": "CDF epoch time for the start of the measurement period", "x_cdf_NAME": "Epoch", "x_cdf_DataType": "CDF_EPOCH" }, { "name": "Dose_Rate", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "Dose rate in silicon", "fill": "NaN", "units": "uGy/min", "x_label": "Dose rate in silicon", "x_format": ".8e", "x_fractionDigits": "8", "x_cdf_FORMAT": "E16.8", "x_cdf_FIELDNAM": "Dose rate in silicon", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch" }, { "name": "Dose_Rate_Error", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "Error in dose rate in silicon", "fill": "NaN", "units": "uGy/min", "x_label": "Dose Rate Error", "x_format": ".8e", "x_fractionDigits": "8", "x_cdf_FORMAT": "E16.8", "x_cdf_FIELDNAM": "Error in dose rate in silicon", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch" }, { "name": "LET_Hist", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "Differential LET histogram", "fill": "NaN", "units": "cts/(cm^2.sr.s.keV/um)", "x_label": "Differential LET histogram", "x_format": ".8e", "x_fractionDigits": "8", "x_cdf_FORMAT": "E12.8", "x_cdf_FIELDNAM": "Differential LET histogram", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch", "size": [ 160 ], "bins": [ { "name": "Energy_Level", "description": "Energy Level", "centers": [ 0.1, 0.106, 0.112, 0.119, 0.126, 0.133, 0.141, 0.15, 0.158, 0.168, 0.178, 0.188, 0.2, 0.211, 0.224, 0.237, 0.251, 0.266, 0.282, 0.299, 0.316, 0.335, 0.355, 0.376, 0.398, 0.422, 0.447, 0.473, 0.501, 0.531, 0.562, 0.596, 0.631, 0.668, 0.708, 0.75, 0.794, 0.841, 0.891, 0.944, 1, 1.06, 1.12, 1.19, 1.26, 1.33, 1.41, 1.5, 1.58, 1.68, 1.78, 1.88, 2, 2.11, 2.24, 2.37, 2.51, 2.66, 2.82, 2.99, 3.16, 3.35, 3.55, 3.76, 3.98, 4.22, 4.47, 4.73, 5.01, 5.31, 5.62, 5.96, 6.31, 6.68, 7.08, 7.5, 7.94, 8.41, 8.91, 9.44, 10, 10.6, 11.2, 11.9, 12.6, 13.3, 14.1, 15, 15.8, 16.8, 17.8, 18.8, 20, 21.1, 22.4, 23.7, 25.1, 26.6, 28.2, 29.9, 31.6, 33.5, 35.5, 37.6, 39.8, 42.2, 44.7, 47.3, 50.1, 53.1, 56.2, 59.6, 63.1, 66.8, 70.8, 75, 79.4, 84.1, 89.1, 94.4, 100, 106, 112, 119, 126, 133, 141, 150, 158, 168, 178, 188, 200, 211, 224, 237, 251, 266, 282, 299, 316, 335, 355, 376, 398, 422, 447, 473, 501, 531, 562, 596, 631, 668, 708, 750, 794, 841, 891, 944 ], "x_label": "Energy Level", "units": "keV/um" } ] }, { "name": "LET_Hist_Err", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "Error in Differential LET histogram", "fill": "NaN", "units": "cts/(cm^2.sr.s.keV/um)", "x_label": "Error LET", "x_format": ".8e", "x_fractionDigits": "8", "x_cdf_FORMAT": "E12.8", "x_cdf_FIELDNAM": "Error in Differential LET histogram", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch", "size": [ 160 ], "bins": [ { "name": "Energy_Level", "description": "Energy Level", "centers": [ 0.1, 0.106, 0.112, 0.119, 0.126, 0.133, 0.141, 0.15, 0.158, 0.168, 0.178, 0.188, 0.2, 0.211, 0.224, 0.237, 0.251, 0.266, 0.282, 0.299, 0.316, 0.335, 0.355, 0.376, 0.398, 0.422, 0.447, 0.473, 0.501, 0.531, 0.562, 0.596, 0.631, 0.668, 0.708, 0.75, 0.794, 0.841, 0.891, 0.944, 1, 1.06, 1.12, 1.19, 1.26, 1.33, 1.41, 1.5, 1.58, 1.68, 1.78, 1.88, 2, 2.11, 2.24, 2.37, 2.51, 2.66, 2.82, 2.99, 3.16, 3.35, 3.55, 3.76, 3.98, 4.22, 4.47, 4.73, 5.01, 5.31, 5.62, 5.96, 6.31, 6.68, 7.08, 7.5, 7.94, 8.41, 8.91, 9.44, 10, 10.6, 11.2, 11.9, 12.6, 13.3, 14.1, 15, 15.8, 16.8, 17.8, 18.8, 20, 21.1, 22.4, 23.7, 25.1, 26.6, 28.2, 29.9, 31.6, 33.5, 35.5, 37.6, 39.8, 42.2, 44.7, 47.3, 50.1, 53.1, 56.2, 59.6, 63.1, 66.8, 70.8, 75, 79.4, 84.1, 89.1, 94.4, 100, 106, 112, 119, 126, 133, 141, 150, 158, 168, 178, 188, 200, 211, 224, 237, 251, 266, 282, 299, 316, 335, 355, 376, 398, 422, 447, 473, 501, 531, 562, 596, 631, 668, 708, 750, 794, 841, 891, 944 ], "x_label": "Energy Level", "units": "keV/um" } ] }, { "name": "XCounts_5_1000", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "X-ray Counts 5-100 keV energy deposit", "fill": "NaN", "units": "Counts", "x_label": "X-ray Counts on 5-100 keV", "x_format": ".2e", "x_fractionDigits": "2", "x_cdf_FORMAT": "E12.2", "x_cdf_FIELDNAM": "X-ray Counts 5-100 keV energy deposit", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch" }, { "name": "XCounts_5_1000_Err", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "Error in X-ray Counts 5-100 keV energy deposit", "fill": "NaN", "units": "Counts", "x_label": "Error in X-ray Counts", "x_format": ".2e", "x_fractionDigits": "2", "x_cdf_FORMAT": "E12.2", "x_cdf_FIELDNAM": "Error in X-ray Counts 5-100 keV energy deposit", "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch" } ], "x_info_author": "bw", "x_cdaweb_hapi_version": "20260130.0606", "x_info_caching": false, "status": { "code": 1200, "message": "OK" }, "HAPI": "3.2", "x_LastUpdate": "2026-04-12T15:09:10Z" }