ASTROSAT CZTI

Data Quality Report

Orbit 23102

Creation date: 2024-06-27T18:49:57.464843
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/AS1A07_138T05_9000003410_23102cztM0_level2.evt modeM0/AS1A07_138T05_9000003410_23102cztM0_level2_quad_clean.evt
Size (bytes)488,784,96097,862,400
Size466.1 MB 93.3 MB
Events in quadrant A3,431,776635,833
Events in quadrant B3,443,764655,301
Events in quadrant C3,798,302629,908
Events in quadrant D3,710,836612,540

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142582
B0142172
C0153962
D0153582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61671101.783687%
B61681352.188716%
C61682814.555772%
D61681542.496757%

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 8967 6169 1 1 0.01% 0.02%
B 8968 6169 18 18 0.20% 0.29%
C 8968 6170 80 80 0.89% 1.30%
D 8968 6169 52 52 0.58% 0.84%

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 6 16 177815 1049.85 844 828 168.6
A 13 254 9586 51.95 844 828 168.6
A 0 226 7365 38.78 844 828 168.6
B 0 189 61355 381.86 848 830 158.5
B 5 255 19883 120.21 848 830 158.5
B 12 111 18842 113.64 848 830 158.5
C 0 10 386444 2019.5 818 825 190.9
C 14 238 129596 674.38 818 825 190.9
C 0 207 90499 469.63 818 825 190.9
D 12 233 182448 903.78 823 801 201.0
D 1 52 92707 457.28 823 801 201.0
D 12 227 82739 407.68 823 801 201.0

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