ASTROSAT CZTI

Data Quality Report

Orbit 02210

Creation date: 2024-06-27T14:15:19.380413
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/AS1T01_072T04_9000000342_02210cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02210cztM0_level2_quad_clean.evt
Size (bytes)1,321,539,84057,096,000
Size1.2 GB 54.5 MB
Events in quadrant A11,970,871298,229
Events in quadrant B11,039,795270,630
Events in quadrant C5,946,193488,002
Events in quadrant D10,666,448248,787

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03973416
B0371661
C02238716
D0365001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5956483481.161854%
B5900404868.610169%
C6128121619.843342%
D5966374462.755615%

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 7216 5958 4386 4386 60.78% 73.62%
B 7216 5901 3947 3947 54.70% 66.89%
C 7216 6130 1014 1014 14.05% 16.54%
D 7216 5967 3586 3586 49.70% 60.10%

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 3 159 2774979 17307.01 446 416 160.3
A 3 254 1755539 10948.0 446 416 160.3
A 11 246 657702 4099.98 446 416 160.3
B 3 191 7716733 45767.8 374 335 168.6
B 14 181 254056 1504.88 374 335 168.6
B 15 26 179545 1062.94 374 335 168.6
C 0 187 1801136 9529.94 657 651 188.9
C 1 192 279343 1475.11 657 651 188.9
C 5 234 263210 1389.72 657 651 188.9
D 3 254 2207251 17651.9 297 277 125.0
D 3 238 757285 6054.73 297 277 125.0
D 3 184 745203 5958.1 297 277 125.0

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