ASTROSAT CZTI

Data Quality Report

Orbit 10032

Creation date: 2024-06-27T15:53:58.224551
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/AS1G07_022T02_9000001434_10032cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10032cztM0_level2_quad_clean.evt
Size (bytes)300,159,36058,331,520
Size286.3 MB 55.6 MB
Events in quadrant A1,988,417375,727
Events in quadrant B2,179,139383,376
Events in quadrant C1,916,376380,197
Events in quadrant D2,714,125326,298

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132864377
B0139284552
C0130824245
D0184497813

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213
B0224
C0223
D0236

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013133
B013236
C013138
D013142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A431880.185271%
B4331250.577234%
C433040.092379%
D39291152.926953%

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 7577 5249 1 1 0.01% 0.02%
B 7603 5251 2 2 0.03% 0.04%
C 7605 5270 0 0 0.00% 0.00%
D 7598 4861 85 85 1.12% 1.75%

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 8 15 34047 331.82 498 487 101.1
A 15 174 17529 168.5 498 487 101.1
A 15 239 14509 138.64 498 487 101.1
B 4 81 164955 1687.03 510 497 97.5
B 0 214 14601 144.68 510 497 97.5
B 12 111 10130 98.82 510 497 97.5
C 13 61 3666 28.1 489 490 113.0
C 8 222 2485 17.65 489 490 113.0
C 14 67 1847 12.01 489 490 113.0
D 2 16 447193 4102.16 428 417 108.9
D 8 195 291163 2669.54 428 417 108.9
D 1 52 185570 1700.02 428 417 108.9

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