ASTROSAT CZTI

Data Quality Report

Orbit 30326

Creation date: 2024-06-27T20:13:44.619719
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_071T29_9000004358_30326cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30326cztM0_level2_quad_clean.evt
Size (bytes)513,437,76093,162,240
Size489.7 MB 88.8 MB
Events in quadrant A3,269,494611,162
Events in quadrant B5,199,760621,822
Events in quadrant C3,376,345589,452
Events in quadrant D3,288,888571,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136442
B0194132
C0137183
D0137472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6121731.192616%
B61211572.564940%
C61201312.140523%
D6120330.539216%

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 7466 6123 5 5 0.07% 0.08%
B 7466 6123 26 26 0.35% 0.42%
C 7465 6122 8 8 0.11% 0.13%
D 7465 6122 7 7 0.09% 0.11%

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 5 203 90546 559.04 812 799 160.5
A 8 192 25959 156.72 812 799 160.5
A 14 239 17738 105.51 812 799 160.5
B 6 159 1719929 11232.72 805 787 153.0
B 6 36 288563 1880.3 805 787 153.0
B 0 190 19000 119.0 805 787 153.0
C 3 233 148411 818.72 778 786 180.3
C 14 238 140677 775.83 778 786 180.3
C 0 10 19797 105.43 778 786 180.3
D 13 104 125520 620.75 773 758 201.0
D 8 195 107179 529.5 773 758 201.0
D 13 249 52232 256.11 773 758 201.0

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