ASTROSAT CZTI

Data Quality Report

Orbit 43303

Creation date: 2024-06-27T22:50:22.329343
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A12_089T01_9000005864_43303cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43303cztM0_level2_quad_clean.evt
Size (bytes)208,517,76060,108,480
Size198.9 MB 57.3 MB
Events in quadrant A2,171,274395,205
Events in quadrant B1,783,225413,264
Events in quadrant C1,674,847398,636
Events in quadrant D1,811,524361,652

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084921
B076691
C071921
D078931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3548641.803833%
B354840.112740%
C354840.112740%
D3548371.042841%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 3548 3548 37 37 1.04% 1.04%
B 3548 3548 4 4 0.11% 0.11%
C 3548 3548 2 2 0.06% 0.06%
D 3548 3548 34 34 0.96% 0.96%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 389071 4740.7 391 383 82.0
A 15 237 208134 2533.87 391 383 82.0
A 15 222 23161 277.82 391 383 82.0
B 0 245 139681 1815.82 389 379 76.7
B 0 189 63883 827.78 389 379 76.7
B 0 186 27376 351.91 389 379 76.7
C 15 214 151220 1678.83 380 383 89.8
C 14 254 21848 238.91 380 383 89.8
C 3 233 15501 168.27 380 383 89.8
D 2 249 84135 878.14 382 371 95.4
D 13 249 82963 865.85 382 371 95.4
D 12 233 68592 715.2 382 371 95.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter