# 
 # rdb parameter file ("rpf") format
 # 
 S     rpf_creation_time : "Mon Jan 17 13:31:12 2000"                                                 
 S              filename : "/nfs/spectra/d2/3c273/acisf1198_000N001_g02346Elt10s4G110_evt2.fits"      
 S              detector : "ACIS-S"                                                                   
 S               grating : "LETG"                                                                     
 N           file_events :  263127.00 +/- 0.0000000                                                   
 N        abs_start_time :  63833866. +/- 0.0000000 second                                            
 N     interval_duration :  39625.725 +/- 0.0000000 second                                            
 N        ave_event_rate :  6.6403076 +/- 0.012945102 event/second                                    
 S           proc_method : "Sky"                                                                      
 N        expnos_ratio_0 :  0.0000000 +/- 0.0000000                                                   
 N        expnos_ratio_1 :  0.0000000 +/- 0.0000000                                                   
 N        expnos_ratio_2 :  0.0000000 +/- 0.0000000                                                   
 N        expnos_ratio_3 :  0.0000000 +/- 0.0000000                                                   
 N        expnos_ratio_4 :  0.93858272 +/- 0.0000000                                                  
 N        expnos_ratio_5 :  0.98141813 +/- 0.0000000                                                  
 N        expnos_ratio_6 :  0.99638325 +/- 0.0000000                                                  
 N        expnos_ratio_7 :  1.0016493 +/- 0.0000000                                                   
 N        expnos_ratio_8 :  1.0076133 +/- 0.0000000                                                   
 N        expnos_ratio_9 :  0.97453654 +/- 0.0000000                                                  
 N         live_interval :  39625.725 +/- 0.0000000 second                                            
 N       live_event_rate :  6.5753750 +/- 0.012881655 event/second                                    
 N         zo_det_events :  67187.000 +/- 0.0000000                                                   
 N          zo_live_rate :  1.6955400 +/- 0.0065413204 event/second                                   
 S          x_coord_name : "SkyX"                                                                     
 S          y_coord_name : "-SkyY"                                                                    
 N              zo_loc_x :  4153.4419 +/- 0.0000000 pixel                                             
 N              zo_loc_y :  -4070.4248 +/- 0.0000000 pixel                                            
 N       zo_det_fwtenthm :  8.0000000 +/- 0.0000000 pixel                                             
 N           zo_det_fwhm :  2.0000000 +/- 0.0000000 pixel                                             
 N             roll_axay :  -68.000336 +/- 0.0000000 degrees                                          
 N        det_rms_radius :  66.629204 +/- 0.0000000 pixel                                             
 N            zo_loc_fit :  1.7710168 +/- 0.0061203898 pixel                                          
 N           zo_fwhm_fit :  60.609703 +/- 0.31962872 micron                                           
 N                zo_acf :  0.0071864845 +/- 8.6021605e-05 fraction in pixel/10                       
 N      zo_detail_events :  67187.000 +/- 0.0000000                                                   
 N        zo_detail_rate :  1.6955400 +/- 0.0065413204 event/second                                   
 N          strk_loc_fit :  1.6367869 +/- 0.079505801 pixel                                           
 N         strk_fwhm_fit :  51.696602 +/- 3.9407895 micron                                            
 N              strk_acf :  0.018925000 +/- 0.0026767518 fraction in pixel/5                          
 N           strk_events :  400.00000 +/- 0.0000000                                                   
 N             strk_rate :  0.010094453 +/- 0.00050472263 event/second                                
 N             zo_loc_ax :  4155.0786 +/- 0.0000000 pixel                                             
 N             zo_loc_ay :  -4070.4248 +/- 0.0000000 pixel                                            
 N      leg_minus_events :  69378.000 +/- 0.0000000                                                   
 N       leg_minus_angle :  -0.065719470 +/- 0.0000000 degree                                         
 N       leg_plus_events :  76120.000 +/- 0.0000000                                                   
 N        leg_plus_angle :  -0.061614957 +/- 0.0000000 degree                                         
 N        leg_all_events :  145498.00 +/- 0.0000000                                                   
 N         leg_all_angle :  -0.064759456 +/- 0.0000000 degree