ASTROSAT CZTI

Data Quality Report

Orbit 17503

Creation date: 2024-06-27T17:37:21.928273
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/AS1T03_068T01_9000002594_17503cztM0_level2.evt modeM0/AS1T03_068T01_9000002594_17503cztM0_level2_quad_clean.evt
Size (bytes)246,562,56048,479,040
Size235.1 MB 46.2 MB
Events in quadrant A1,512,364327,547
Events in quadrant B1,562,499328,312
Events in quadrant C1,535,372314,783
Events in quadrant D2,649,382281,353

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06754349
B06856356
C06785361
D010339418

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0653
B0642
C0664
D0642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3035601.976936%
B3028792.608983%
C3031913.002309%
D301755518.395757%

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 4037 3059 0 0 0.00% 0.00%
B 4035 3055 0 0 0.00% 0.00%
C 4031 3056 0 0 0.00% 0.00%
D 4034 3047 384 384 9.52% 12.60%

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 4 2 5578 64.81 389 380 80.2
A 15 174 5336 61.79 389 380 80.2
A 0 226 3389 37.52 389 380 80.2
B 7 220 28317 366.72 384 375 76.2
B 3 64 11156 141.49 384 375 76.2
B 12 111 8938 112.38 384 375 76.2
C 14 238 56623 638.99 368 370 88.0
C 5 218 27060 303.18 368 370 88.0
C 3 233 11726 129.0 368 370 88.0
D 10 70 1191124 13742.26 354 343 86.7
D 13 189 95837 1102.05 354 343 86.7
D 2 234 11587 129.76 354 343 86.7

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