ASTROSAT CZTI

Data Quality Report

Orbit 03229

Creation date: 2024-06-27T14:26:06.157336
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/AS1G05_221T01_9000000438_03229cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03229cztM0_level2_quad_clean.evt
Size (bytes)501,825,60072,725,760
Size478.6 MB 69.4 MB
Events in quadrant A4,887,559424,258
Events in quadrant B3,537,445449,091
Events in quadrant C3,146,903450,409
Events in quadrant D3,187,686427,934

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187313
B0146192
C0136272
D0140502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64536279.716411%
B64531702.634434%
C64531582.448474%
D64531452.247017%

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 7523 6453 408 408 5.42% 6.32%
B 7523 6453 7 7 0.09% 0.11%
C 7523 6453 14 14 0.19% 0.22%
D 7523 6453 20 20 0.27% 0.31%

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 0 50 1118378 7364.63 747 732 151.8
A 0 118 526271 3462.99 747 732 151.8
A 0 199 235269 1545.46 747 732 151.8
B 15 204 372256 2509.71 786 767 148.0
B 5 200 56417 375.96 786 767 148.0
B 2 249 45859 304.63 786 767 148.0
C 14 223 111178 627.96 759 763 175.8
C 6 80 36657 204.14 759 763 175.8
C 1 192 24689 136.07 759 763 175.8
D 13 223 155950 868.2 748 728 178.8
D 13 120 67062 371.03 748 728 178.8
D 4 80 29255 159.56 748 728 178.8

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