ASTROSAT CZTI

Data Quality Report

Orbit 25183

Creation date: 2024-06-27T19:15:04.195582
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/AS1C05_002T10_9000003688_25183cztM0_level2.evt modeM0/AS1C05_002T10_9000003688_25183cztM0_level2_quad_clean.evt
Size (bytes)372,263,04075,720,960
Size355.0 MB 72.2 MB
Events in quadrant A2,542,037493,778
Events in quadrant B2,735,196495,903
Events in quadrant C2,568,344472,218
Events in quadrant D3,075,934468,204

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108830
B0114450
C0108130
D0124410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5185651.253616%
B51851202.314368%
C5185931.793635%
D5185571.099325%

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 5184 5184 0 0 0.00% 0.00%
B 5185 5185 20 20 0.39% 0.39%
C 5184 5184 6 6 0.12% 0.12%
D 5184 5184 0 0 0.00% 0.00%

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 15 174 13402 96.77 655 640 131.9
A 13 254 8208 57.39 655 640 131.9
A 3 137 5770 38.9 655 640 131.9
B 3 64 161789 1313.75 644 630 122.7
B 0 190 15680 122.69 644 630 122.7
B 12 111 14804 115.55 644 630 122.7
C 14 238 101714 689.89 624 627 146.5
C 14 225 17817 117.32 624 627 146.5
C 7 247 9110 57.89 624 627 146.5
D 8 195 461148 3001.96 636 616 153.4
D 1 255 75748 489.75 636 616 153.4
D 1 52 56157 362.04 636 616 153.4

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