ASTROSAT CZTI

Data Quality Report

Orbit 13697

Creation date: 2024-06-27T16:44:42.154662
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/AS1G08_070T01_9000002028_13697cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13697cztM0_level2_quad_clean.evt
Size (bytes)584,498,88088,850,880
Size557.4 MB 84.7 MB
Events in quadrant A3,809,724553,892
Events in quadrant B3,975,272578,902
Events in quadrant C3,807,214521,812
Events in quadrant D5,587,725500,748

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162182
B0165021
C0161991
D0218141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76892643.433476%
B76892943.823644%
C76891932.510079%
D76894515.865522%

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 7705 7691 0 0 0.00% 0.00%
B 7705 7691 7 7 0.09% 0.09%
C 7705 7691 0 0 0.00% 0.00%
D 7705 7691 126 126 1.64% 1.64%

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 1 162 20139 95.0 981 960 201.9
A 0 226 8886 39.26 981 960 201.9
A 12 194 7573 32.76 981 960 201.9
B 0 219 59419 308.72 981 960 189.4
B 4 80 37802 194.56 981 960 189.4
B 0 214 32721 167.73 981 960 189.4
C 3 233 118460 529.29 944 948 222.0
C 13 61 6908 26.84 944 948 222.0
C 8 128 4246 14.85 944 948 222.0
D 1 52 936672 4049.72 940 914 231.1
D 13 122 837083 3618.72 940 914 231.1
D 8 195 94711 405.93 940 914 231.1

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