ASTROSAT CZTI

Data Quality Report

Orbit 09124

Creation date: 2024-06-27T15:41:36.056130
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/AS1A03_105T01_9000001268_09124cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09124cztM0_level2_quad_clean.evt
Size (bytes)186,580,80011,468,160
Size177.9 MB 10.9 MB
Events in quadrant A1,704,84445,008
Events in quadrant B1,197,32445,123
Events in quadrant C1,113,36542,809
Events in quadrant D1,471,85142,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066281
B050153
C049321
D058851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23691446.078514%
B2368632.660473%
C2369200.844238%
D2369843.545800%

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 2369 2369 48 48 2.03% 2.03%
B 2369 2369 1 1 0.04% 0.04%
C 2369 2369 0 0 0.00% 0.00%
D 2369 2369 40 40 1.69% 1.69%

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 8 5 239856 3870.8 292 285 61.9
A 15 223 211187 3407.58 292 285 61.9
A 15 239 82929 1335.29 292 285 61.9
B 0 214 37236 619.7 295 288 59.6
B 12 111 6624 106.27 295 288 59.6
B 5 175 5603 89.14 295 288 59.6
C 8 128 7079 100.76 282 283 67.4
C 8 112 2802 37.35 282 283 67.4
C 8 144 2523 33.21 282 283 67.4
D 1 52 289111 3838.68 283 275 75.2
D 2 14 63217 836.51 283 275 75.2
D 8 195 23088 303.19 283 275 75.2

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