ASTROSAT CZTI

Data Quality Report

Orbit 26044

Creation date: 2024-06-27T19:24:12.156305
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/AS1A09_033T02_9000003762_26044cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26044cztM0_level2_quad_clean.evt
Size (bytes)235,771,20028,019,520
Size224.8 MB 26.7 MB
Events in quadrant A1,475,400163,067
Events in quadrant B1,661,510162,948
Events in quadrant C1,485,247154,070
Events in quadrant D2,310,196151,438

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062240
B067990
C062000
D088290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3030351.155116%
B3030973.201320%
C3030511.683168%
D30301866.138614%

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 3045 3031 0 0 0.00% 0.00%
B 3045 3031 38 38 1.25% 1.25%
C 3045 3031 0 0 0.00% 0.00%
D 3045 3031 131 131 4.30% 4.32%

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 5 244 5182 61.98 381 374 77.6
A 13 254 4062 47.54 381 374 77.6
A 3 137 3628 41.95 381 374 77.6
B 10 245 170542 2355.59 372 363 72.2
B 0 190 24253 330.68 372 363 72.2
B 0 229 10372 138.54 372 363 72.2
C 14 238 58729 681.18 362 364 85.7
C 3 233 8357 93.29 362 364 85.7
C 3 248 4568 49.07 362 364 85.7
D 1 52 925475 9406.2 362 354 98.4
D 2 234 11826 116.64 362 354 98.4
D 14 226 3518 32.17 362 354 98.4

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