ASTROSAT CZTI

Data Quality Report

Orbit 17323

Creation date: 2024-06-27T17:34:59.130389
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/AS1A05_169T01_9000002558_17323cztM0_level2.evt modeM0/AS1A05_169T01_9000002558_17323cztM0_level2_quad_clean.evt
Size (bytes)447,661,44067,720,320
Size426.9 MB 64.6 MB
Events in quadrant A3,241,639409,742
Events in quadrant B3,349,218409,614
Events in quadrant C3,292,936389,762
Events in quadrant D3,235,722391,767

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138752
B0142002
C0140772
D0139673

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6447811.256398%
B64471111.721731%
C64471271.969908%
D6446610.946323%

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 7587 6447 0 0 0.00% 0.00%
B 7587 6447 0 0 0.00% 0.00%
C 7587 6447 0 0 0.00% 0.00%
D 7586 6447 4 4 0.05% 0.06%

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 0 226 7342 38.87 843 826 167.6
A 3 137 6149 31.75 843 826 167.6
A 12 194 5891 30.21 843 826 167.6
B 0 230 47432 297.8 837 818 156.5
B 4 173 28205 174.97 837 818 156.5
B 12 111 19181 117.32 837 818 156.5
C 14 238 126504 675.2 804 811 186.2
C 3 233 30968 162.0 804 811 186.2
C 13 61 5660 26.05 804 811 186.2
D 5 222 94199 472.2 814 792 197.8
D 2 152 49666 247.07 814 792 197.8
D 2 234 24708 120.9 814 792 197.8

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