ASTROSAT CZTI

Data Quality Report

Orbit 28032

Creation date: 2024-06-27T19:47:17.865451
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_048T02_9000004050_28032cztM0_level2.evt modeM0/AS1A10_048T02_9000004050_28032cztM0_level2_quad_clean.evt
Size (bytes)564,865,920105,068,160
Size538.7 MB 100.2 MB
Events in quadrant A3,497,913688,617
Events in quadrant B3,564,328693,036
Events in quadrant C3,576,771651,969
Events in quadrant D5,966,281633,202

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150090
B0151240
C0151150
D0229550

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7400320.432432%
B7401500.675584%
C7401831.121470%
D74013044.107553%

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 8945 7402 2 2 0.02% 0.03%
B 8946 7402 0 0 0.00% 0.00%
C 8946 7402 0 0 0.00% 0.00%
D 8946 7401 248 248 2.77% 3.35%

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 11364 57.66 902 882 181.8
A 3 137 9042 44.88 902 882 181.8
A 0 13 8121 39.82 902 882 181.8
B 10 245 32558 183.55 896 874 172.6
B 12 111 21829 121.4 896 874 172.6
B 11 111 20077 111.25 896 874 172.6
C 14 238 138836 679.37 863 867 203.1
C 3 233 73365 356.98 863 867 203.1
C 13 61 5940 24.98 863 867 203.1
D 8 195 1334887 6501.49 860 836 205.2
D 1 52 1053149 5128.44 860 836 205.2
D 7 80 313541 1523.97 860 836 205.2

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