ASTROSAT CZTI

Data Quality Report

Orbit 24297

Creation date: 2024-06-27T19:04:28.685931
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/AS1A07_027T10_9000003592_24297cztM0_level2.evt modeM0/AS1A07_027T10_9000003592_24297cztM0_level2_quad_clean.evt
Size (bytes)273,049,92037,837,440
Size260.4 MB 36.1 MB
Events in quadrant A1,459,919240,714
Events in quadrant B1,462,207245,664
Events in quadrant C1,640,123233,386
Events in quadrant D3,506,793217,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061491
B061651
C065511
D0123681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29231585.405405%
B29231585.405405%
C29241796.121751%
D292454018.467852%

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 3153 2923 0 0 0.00% 0.00%
B 3153 2923 0 0 0.00% 0.00%
C 3154 2925 0 0 0.00% 0.00%
D 3154 2924 282 282 8.94% 9.64%

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 13 254 4120 48.14 377 367 78.0
A 3 137 3528 40.55 377 367 78.0
A 0 226 3387 38.74 377 367 78.0
B 12 111 8986 115.55 370 359 74.7
B 11 111 8318 106.6 370 359 74.7
B 14 111 7029 89.33 370 359 74.7
C 7 247 195612 2301.07 356 356 84.9
C 14 238 54916 642.98 356 356 84.9
C 13 61 2406 24.16 356 356 84.9
D 1 52 1789053 20663.01 348 338 86.6
D 12 233 214055 2468.83 348 338 86.6
D 10 103 120464 1387.68 348 338 86.6

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