ASTROSAT CZTI

Data Quality Report

Orbit 07592

Creation date: 2024-06-27T15:21:32.894603
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/AS1G06_117T01_9000001046_07592cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07592cztM0_level2_quad_clean.evt
Size (bytes)1,192,576,320135,515,520
Size1.1 GB 129.2 MB
Events in quadrant A5,625,465868,668
Events in quadrant B5,220,403889,460
Events in quadrant C16,094,051729,261
Events in quadrant D8,398,617816,731

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02407010
B0235954
C0561259
D0332812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11541770.667187%
B11543950.823010%
C11543401634.791649%
D115448697.527720%

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 12794 11546 1 1 0.01% 0.01%
B 12794 11546 0 0 0.00% 0.00%
C 12794 11545 3526 3526 27.56% 30.54%
D 12794 11546 549 549 4.29% 4.75%

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 15 239 522955 1931.91 1321 1292 270.0
A 0 226 12544 41.67 1321 1292 270.0
A 12 194 11589 38.13 1321 1292 270.0
B 12 111 27415 101.84 1332 1297 256.5
B 0 214 24350 89.89 1332 1297 256.5
B 11 111 22051 80.93 1332 1297 256.5
C 9 68 11633621 44401.0 1130 1135 262.0
C 1 16 29106 106.76 1130 1135 262.0
C 8 128 13473 47.09 1130 1135 262.0
D 5 233 1656084 5338.86 1254 1215 310.0
D 2 152 1461199 4710.13 1254 1215 310.0
D 2 14 303420 974.96 1254 1215 310.0

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