ASTROSAT CZTI

Data Quality Report

Orbit 16460

Creation date: 2024-06-27T17:23:00.066755
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/AS1C04_007T04_9000002430_16460cztM0_level2.evt modeM0/AS1C04_007T04_9000002430_16460cztM0_level2_quad_clean.evt
Size (bytes)486,797,76076,887,360
Size464.2 MB 73.3 MB
Events in quadrant A3,328,331463,290
Events in quadrant B3,762,990473,168
Events in quadrant C3,518,803460,394
Events in quadrant D3,664,844451,596

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143173
B0153302
C0145102
D0153432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6891931.349586%
B68911412.046147%
C68911732.510521%
D68911281.857495%

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 7662 6892 0 0 0.00% 0.00%
B 7662 6892 21 21 0.27% 0.30%
C 7662 6892 11 11 0.14% 0.16%
D 7662 6892 59 59 0.77% 0.86%

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 15 174 54339 311.19 850 831 171.9
A 0 226 7416 38.3 850 831 171.9
A 12 194 6376 32.25 850 831 171.9
B 15 35 148224 900.78 854 834 163.6
B 0 229 68375 412.78 854 834 163.6
B 4 173 64817 391.03 854 834 163.6
C 3 233 140869 730.81 821 829 191.6
C 14 238 126318 654.88 821 829 191.6
C 0 207 37387 190.78 821 829 191.6
D 5 222 260370 1283.57 825 800 202.2
D 1 52 115467 567.03 825 800 202.2
D 2 33 97927 480.29 825 800 202.2

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