ASTROSAT CZTI

Data Quality Report

Orbit 10556

Creation date: 2024-06-27T16:00:47.667202
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_004T01_9000001532_10556cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10556cztM0_level2_quad_clean.evt
Size (bytes)179,046,72032,590,080
Size170.8 MB 31.1 MB
Events in quadrant A1,163,178201,080
Events in quadrant B1,428,645201,527
Events in quadrant C1,135,375214,302
Events in quadrant D1,531,440198,396

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051522
B058711
C051261
D059831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23701948.185654%
B237028612.067511%
C2370903.797468%
D23701928.101266%

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 2385 2371 0 0 0.00% 0.00%
B 2385 2371 27 27 1.13% 1.14%
C 2385 2371 0 0 0.00% 0.00%
D 2385 2371 71 71 2.98% 2.99%

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 8852 135.59 294 286 63.2
A 14 254 7555 115.06 294 286 63.2
A 13 251 5239 78.4 294 286 63.2
B 4 239 296911 5041.72 285 276 58.8
B 0 214 10364 171.46 285 276 58.8
B 12 111 6587 107.26 285 276 58.8
C 8 128 3858 52.45 287 287 68.1
C 14 234 3019 40.13 287 287 68.1
C 4 175 2379 30.73 287 287 68.1
D 1 52 214634 3094.81 282 273 69.3
D 8 195 122886 1770.21 282 273 69.3
D 2 16 68257 981.51 282 273 69.3

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