ASTROSAT CZTI

Data Quality Report

Orbit 13593

Creation date: 2024-06-27T16:43:10.270368
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/AS1A04_193T01_9000002004_13593cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13593cztM0_level2_quad_clean.evt
Size (bytes)537,514,560124,787,520
Size512.6 MB 119.0 MB
Events in quadrant A3,074,759858,289
Events in quadrant B3,491,948854,958
Events in quadrant C3,117,027851,305
Events in quadrant D6,156,297763,557

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133212
B0144411
C0133601
D0224761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462640.990405%
B64621452.243887%
C6462390.603528%
D6462102715.892912%

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 7488 6464 0 0 0.00% 0.00%
B 7488 6464 81 81 1.08% 1.25%
C 7488 6464 3 3 0.04% 0.05%
D 7488 6464 917 917 12.25% 14.19%

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 32900 206.67 776 760 155.5
A 2 250 13615 82.66 776 760 155.5
A 4 2 11818 71.11 776 760 155.5
B 0 182 248138 1718.09 766 746 144.0
B 0 85 92283 635.71 766 746 144.0
B 3 64 65028 446.43 766 746 144.0
C 3 233 180812 1056.86 744 747 170.4
C 0 207 19231 108.49 744 747 170.4
C 14 234 17045 95.66 744 747 170.4
D 13 122 2816523 16494.09 713 691 170.7
D 5 222 308390 1802.39 713 691 170.7
D 8 195 249721 1458.72 713 691 170.7

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