ASTROSAT CZTI

Data Quality Report

Orbit 09556

Creation date: 2024-06-27T15:47:42.246056
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/AS1G07_069T01_9000001356_09556cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09556cztM0_level2_quad_clean.evt
Size (bytes)801,100,800154,739,520
Size764.0 MB 147.6 MB
Events in quadrant A5,836,276978,790
Events in quadrant B5,724,200974,651
Events in quadrant C5,141,935990,830
Events in quadrant D6,790,214956,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250753
B0247932
C0233392
D0278202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113452322.044954%
B113451821.604231%
C113451201.057735%
D113451531.348612%

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 12755 11346 5 5 0.04% 0.04%
B 12755 11346 19 19 0.15% 0.17%
C 12755 11346 0 0 0.00% 0.00%
D 12755 11346 75 75 0.59% 0.66%

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 1 162 307876 1141.18 1330 1300 268.6
A 1 178 136260 502.36 1330 1300 268.6
A 1 161 130552 481.12 1330 1300 268.6
B 4 80 259303 1029.82 1334 1303 250.5
B 15 85 82548 324.29 1334 1303 250.5
B 0 214 68149 266.82 1334 1303 250.5
C 13 61 9958 28.26 1317 1324 305.5
C 14 234 4437 10.19 1317 1324 305.5
C 9 68 3994 8.74 1317 1324 305.5
D 13 122 972189 2887.85 1305 1271 336.2
D 1 52 307529 910.92 1305 1271 336.2
D 12 227 175554 518.38 1305 1271 336.2

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