ASTROSAT CZTI

Data Quality Report

Orbit 37043

Creation date: 2024-06-27T21:34:45.508012
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_083T04_9000005272_37043cztM0_level2.evt modeM0/AS1A11_083T04_9000005272_37043cztM0_level2_quad_clean.evt
Size (bytes)187,853,76031,000,320
Size179.2 MB 29.6 MB
Events in quadrant A1,260,349198,394
Events in quadrant B1,432,901200,591
Events in quadrant C1,511,343192,421
Events in quadrant D1,332,751187,455

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051142
B057171
C059901
D054021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2205190.861678%
B2205552.494331%
C2205441.995465%
D2205261.179138%

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 4328 2206 8 8 0.18% 0.36%
B 4328 2206 28 28 0.65% 1.27%
C 4328 2206 39 39 0.90% 1.77%
D 4328 2206 21 21 0.49% 0.95%

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 116507 1995.88 281 277 58.2
A 11 254 51309 876.31 281 277 58.2
A 13 254 3212 50.4 281 277 58.2
B 0 213 67937 1236.45 279 273 54.7
B 4 81 58750 1068.57 279 273 54.7
B 5 184 58286 1060.1 279 273 54.7
C 0 10 227478 3535.48 271 273 64.3
C 14 254 95219 1477.43 271 273 64.3
C 15 214 95075 1475.19 271 273 64.3
D 2 250 118173 1733.86 273 265 68.0
D 12 233 51386 751.74 273 265 68.0
D 12 235 45483 664.94 273 265 68.0

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