ASTROSAT CZTI

Data Quality Report

Orbit 45853

Creation date: 2024-06-27T23:16:55.879957
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/AS1T05_186T01_9000006130_45853cztM0_level2.fits modeM0/AS1T05_186T01_9000006130_45853cztM0_level2_quad_clean.evt
Size (bytes)310,639,68044,930,880
Size296.2 MB 42.8 MB
Events in quadrant A2,591,864321,825
Events in quadrant B4,795,172228,337
Events in quadrant C1,302,969329,452
Events in quadrant D2,584,308275,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094631
B0162511
C058571
D095831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28751023.547826%
B2875124243.200000%
C287580.278261%
D287530010.434783%

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 2875 2875 2 2 0.07% 0.07%
B 2875 2875 847 847 29.46% 29.46%
C 2875 2875 0 0 0.00% 0.00%
D 2875 2875 241 241 8.38% 8.38%

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 10 83 1268366 17813.68 337 331 71.2
A 12 189 9444 128.02 337 331 71.2
A 13 254 3781 48.47 337 331 71.2
B 3 112 3425953 58969.17 292 283 58.1
B 0 190 80562 1381.92 292 283 58.1
B 0 171 34163 583.21 292 283 58.1
C 12 249 11679 142.57 331 332 79.6
C 13 61 2271 24.36 331 332 79.6
C 3 233 1754 17.87 331 332 79.6
D 1 52 584692 7037.01 320 309 83.0
D 12 2 492382 5925.44 320 309 83.0
D 2 249 54203 648.98 320 309 83.0

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