ASTROSAT CZTI

Data Quality Report

Orbit 45723

Creation date: 2024-06-27T23:15:25.089785
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/AS1A13_028T01_9000006122_45723cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45723cztM0_level2_quad_clean.evt
Size (bytes)261,074,88060,724,800
Size249.0 MB 57.9 MB
Events in quadrant A3,255,272403,188
Events in quadrant B2,219,358411,823
Events in quadrant C1,569,593402,880
Events in quadrant D2,337,538364,895

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118311
B089081
C073451
D094311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3618671.851852%
B3618932.570481%
C361950.138160%
D3619852.348715%

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 3618 3618 0 0 0.00% 0.00%
B 3618 3618 59 59 1.63% 1.63%
C 3618 3618 1 1 0.03% 0.03%
D 3618 3618 66 66 1.82% 1.82%

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 10 83 1606636 18826.58 407 398 85.3
A 7 3 24711 284.97 407 398 85.3
A 13 248 21355 245.64 407 398 85.3
B 3 112 346794 4334.42 403 392 79.9
B 4 171 165835 2070.14 403 392 79.9
B 0 189 47215 585.88 403 392 79.9
C 0 207 12903 132.66 397 399 94.3
C 12 2 4994 48.75 397 399 94.3
C 3 233 3612 34.09 397 399 94.3
D 1 52 621153 6200.43 395 383 100.1
D 2 249 47314 468.76 395 383 100.1
D 13 171 41233 408.02 395 383 100.1

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