# 
 # rdb parameter file ("rpf") format
 # 
 S     rpf_creation_time : "Wed Sep 15 14:25:09 1999"                                                               
 S              filename : "/nfs/atum/d4/acis/evt1/obsid_1235/990908_dph/acis_f1235_000N002_g02346_evt1a.fits"      
 S              detector : "ACIS-S"                                                                                 
 S               grating : "HETG"                                                                                   
 N           file_events :  178595.00 +/- 0.0000000                                                                 
 N        abs_start_time :  52230701. +/- 0.0000000 second                                                          
 N     interval_duration :  14759.699 +/- 0.0000000 second                                                          
 N        ave_event_rate :  12.100179 +/- 0.028632360 event/second                                                  
 S           proc_method : "Sky"                                                                                    
 N         live_interval :  14759.699 +/- 0.0000000 second                                                          
 N       live_event_rate :  9.7929505 +/- 0.025758350 event/second                                                  
 N         zo_det_events :  4007.0000 +/- 0.0000000                                                                 
 N          zo_live_rate :  0.27148251 +/- 0.0042887643 event/second                                                
 S          x_coord_name : "SkyX"                                                                                   
 S          y_coord_name : "-SkyY"                                                                                  
 N              zo_loc_x :  4231.9365 +/- 0.0000000 pixel                                                           
 N              zo_loc_y :  -4262.0454 +/- 0.0000000 pixel                                                          
 N       zo_det_fwtenthm :  11.000000 +/- 0.0000000 pixel                                                           
 N           zo_det_fwhm :  2.0000000 +/- 0.0000000 pixel                                                           
 N             roll_axay :  -87.798561 +/- 0.0000000 degrees                                                        
 N        det_rms_radius :  56.136932 +/- 0.0000000 pixel                                                           
 N            zo_loc_fit :  -0.97294152 +/- 0.060185410 pixel                                                       
 N           zo_fwhm_fit :  142.43306 +/- 3.0537131 micron                                                          
 N                zo_acf :  0.0055683064 +/- 0.00025874544 fraction in pixel/10                                     
 N      zo_detail_events :  4007.0000 +/- 0.0000000                                                                 
 N        zo_detail_rate :  0.27148251 +/- 0.0042887643 event/second                                                
 N          strk_loc_fit :  -0.84953904 +/- 0.038416572 pixel                                                       
 N         strk_fwhm_fit :  35.019051 +/- 1.8531002 micron                                                          
 N              strk_acf :  0.0021375532 +/- 0.00014435389 fraction in pixel/5                                      
 N           strk_events :  3205.0000 +/- 0.0000000                                                                 
 N             strk_rate :  0.21714535 +/- 0.0038356284 event/second                                                
 N             zo_loc_ax :  4231.0869 +/- 0.0000000 pixel                                                           
 N             zo_loc_ay :  -4262.0454 +/- 0.0000000 pixel                                                          
 N      heg_minus_events :  9979.0000 +/- 0.0000000                                                                 
 N       heg_minus_angle :  -5.0387440 +/- 0.0000000 degree                                                         
 N       meg_plus_events :  14740.000 +/- 0.0000000                                                                 
 N        meg_plus_angle :  4.6680737 +/- 0.0000000 degree                                                          
 N      meg_minus_events :  30437.000 +/- 0.0000000                                                                 
 N       meg_minus_angle :  4.8157792 +/- 0.0000000 degree                                                          
 N       heg_plus_events :  5588.0000 +/- 0.0000000                                                                 
 N        heg_plus_angle :  -5.1845613 +/- 0.0000000 degree                                                         
 N        heg_all_events :  15567.000 +/- 0.0000000                                                                 
 N         heg_all_angle :  -5.2962446 +/- 0.0000000 degree                                                         
 N        meg_all_events :  45177.000 +/- 0.0000000                                                                 
 N         meg_all_angle :  4.7626510 +/- 0.0000000 degree                                                          
 N         MEGm1_Res1keV :  549.09491 +/- 0.0000000                                                                 
 N         MEGp1_Res1keV :  638.61334 +/- 0.0000000                                                                 
 N         HEGm1_Res1keV :  1021.9119 +/- 0.0000000                                                                 
 N         HEGp1_Res1keV :  1101.5756 +/- 0.0000000                                                                 
 N     L1a_MEGm1_Res1keV :  509.49646 +/- 0.0000000                                                                 
 N     L1a_MEGp1_Res1keV :  625.27020 +/- 0.0000000                                                                 
 N     L1a_HEGm1_Res1keV :  992.24872 +/- 0.0000000                                                                 
 N     L1a_HEGp1_Res1keV :  1162.0757 +/- 0.0000000