{
  "dataset": "SRC_2",
  "session": "/u/Lang3/program/XARTATOMS/joint_spectrum_fitting_2T_basedon_region_v21/regionR0-15_spectrum.fitting",
  "pha": "data/0900170101/rpc/4.background/bkg_mos2_00500-02000_exclude_extent_source_regionR0-15_mask/mos2U005-obj.pi",
  "qpb_pha": "data/0900170101/rpc/4.background/bkg_mos2_00500-02000_exclude_extent_source_regionR0-15_mask/mos2U005-back.pi",
  "exposure_s": 65232.4696808085,
  "backscal": 482385048.0,
  "skyarea_arcmin2": 334.98961666666673,
  "qpb_scale": 0.9999969345328791,
  "native_mos2_soft_proton_parameters": {
    "PhoIndx1": 0.0004674319966132056,
    "BreakE": 3.2,
    "PhoIndx2": 0.5001,
    "norm": 3.6360960307076473e-06
  },
  "common_r015_soft_proton_parameters": {
    "PhoIndx1": 1.2965306521244002,
    "BreakE": 3.2,
    "PhoIndx2": 2.9106868928719,
    "norm": 6.24576708953368e-05
  },
  "instrumental_line_norms_restored": {
    "SRCspec_2_mos1_InstLine1": 1.1808697228548607e-06,
    "SRCspec_2_mos1_InstLine2": 1.8537807552674553e-07,
    "SRCspec_2_mos_InstLine3": 1.547722036831781e-08
  },
  "bands": {
    "low": {
      "energy_keV": [
        0.7,
        0.875
      ],
      "raw_pha_counts": 2188.0,
      "qpb_pha_counts_unscaled": 902.2957801818848,
      "qpb_pha_counts_scaled": 902.2930142238373,
      "source_apec_model_counts": 415.2216893771511,
      "sky_background_model_counts": 861.8581745485236,
      "instrumental_line_model_counts": 13.888653303025137,
      "soft_proton_native_mos2_model_counts": 13.514035518125276,
      "soft_proton_common_r015_model_counts": 302.13918177946374
    },
    "high": {
      "energy_keV": [
        0.875,
        1.05
      ],
      "raw_pha_counts": 1941.0,
      "qpb_pha_counts_unscaled": 878.9511871337891,
      "qpb_pha_counts_scaled": 878.948492737824,
      "source_apec_model_counts": 374.429078683123,
      "sky_background_model_counts": 645.0969993918425,
      "instrumental_line_model_counts": 21.940305840486182,
      "soft_proton_native_mos2_model_counts": 13.843690696871318,
      "soft_proton_common_r015_model_counts": 241.18383226233988
    }
  },
  "interpretation": {
    "sky": "Vignetted photon background; project as exposure-map-proportional counts.",
    "qpb": "Unvignetted particle background; use mos_back detector map rotated to sky.",
    "soft_proton": "Use proton detector template; do not apply photon exposure-map vignetting."
  }
}