ASTROSAT CZTI

Data Quality Report

Orbit 32870

Creation date: 2024-06-27T20:42:48.852354
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/AS1A11_005T04_9000004742_32870cztM0_level2.evt modeM0/AS1A11_005T04_9000004742_32870cztM0_level2_quad_clean.evt
Size (bytes)471,153,60079,185,600
Size449.3 MB 75.5 MB
Events in quadrant A2,498,142511,980
Events in quadrant B3,079,738516,668
Events in quadrant C2,728,517525,237
Events in quadrant D5,598,982468,649

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109553
B0126272
C0115992
D0204602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A535770.130670%
B53571482.762740%
C5357320.597349%
D53573336.216166%

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 7121 5358 1 1 0.01% 0.02%
B 7121 5358 93 93 1.31% 1.74%
C 7121 5358 19 19 0.27% 0.35%
D 7121 5358 299 299 4.20% 5.58%

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 14 63 36206 282.98 630 620 125.8
A 13 6 16463 125.98 630 620 125.8
A 13 254 9835 73.28 630 620 125.8
B 5 172 398928 3376.03 629 613 118.0
B 15 85 92580 779.49 629 613 118.0
B 0 230 41153 343.61 629 613 118.0
C 0 10 129472 896.49 625 632 143.7
C 3 233 45158 309.82 625 632 143.7
C 14 67 39978 273.78 625 632 143.7
D 8 195 1439014 9625.54 602 589 149.4
D 10 203 545135 3643.95 602 589 149.4
D 12 218 389891 2605.1 602 589 149.4

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