ASTROSAT CZTI

Data Quality Report

Orbit 14244

Creation date: 2024-06-27T16:52:26.390652
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/AS1G08_069T01_9000002102_14244cztM0_level2.evt modeM0/AS1G08_069T01_9000002102_14244cztM0_level2_quad_clean.evt
Size (bytes)579,830,40071,032,320
Size553.0 MB 67.7 MB
Events in quadrant A3,753,083436,181
Events in quadrant B3,846,125427,278
Events in quadrant C3,787,096415,706
Events in quadrant D5,714,258398,552

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152593
B0155132
C0155622
D0219542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67861962.888299%
B67862904.273504%
C67861201.768347%
D67863585.275567%

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 7882 6787 21 21 0.27% 0.31%
B 7882 6787 88 88 1.12% 1.30%
C 7882 6788 1 1 0.01% 0.01%
D 7882 6787 166 166 2.11% 2.45%

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 9 143 243961 1373.01 886 868 177.1
A 12 189 75223 419.96 886 868 177.1
A 8 15 21754 117.97 886 868 177.1
B 15 201 184644 1125.47 868 848 163.3
B 0 229 176128 1073.32 868 848 163.3
B 0 189 45896 275.85 868 848 163.3
C 3 233 449069 2282.7 855 859 196.4
C 13 61 6195 27.18 855 859 196.4
C 14 234 4795 20.05 855 859 196.4
D 8 195 866812 4301.38 848 827 201.3
D 5 222 863067 4282.78 848 827 201.3
D 13 122 427840 2120.99 848 827 201.3

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