ASTROSAT CZTI

Data Quality Report

Orbit 33398

Creation date: 2024-06-27T20:48:22.571542
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/AS1A10_064T02_9000004788_33398cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33398cztM0_level2_quad_clean.evt
Size (bytes)377,331,84034,361,280
Size359.9 MB 32.8 MB
Events in quadrant A1,711,661200,194
Events in quadrant B3,713,456194,016
Events in quadrant C2,007,394198,341
Events in quadrant D3,739,568181,820

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075261
B01351914
C080181
D0137189

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A375340.106581%
B375160816.209011%
C3753411.092459%
D37512366.291656%

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 3753 3753 0 0 0.00% 0.00%
B 3753 3753 455 455 12.12% 12.12%
C 3753 3753 29 29 0.77% 0.77%
D 3752 3752 210 210 5.60% 5.60%

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 6265 64.79 441 431 90.0
A 13 6 5908 60.82 441 431 90.0
A 3 137 4124 41.01 441 431 90.0
B 5 172 1321248 16528.46 411 401 79.9
B 5 255 191081 2386.08 411 401 79.9
B 0 219 172632 2155.22 411 401 79.9
C 15 214 162782 1620.08 428 430 100.2
C 0 10 97658 970.22 428 430 100.2
C 0 207 40447 399.32 428 430 100.2
D 8 195 1049619 10072.27 420 409 104.2
D 12 6 252378 2418.87 420 409 104.2
D 12 233 197684 1893.81 420 409 104.2

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