ASTROSAT CZTI

Data Quality Report

Orbit 13992

Creation date: 2024-06-27T16:48:58.832191
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_075T05_9000002066_13992cztM0_level2.evt modeM0/AS1A04_075T05_9000002066_13992cztM0_level2_quad_clean.evt
Size (bytes)492,837,12099,115,200
Size470.0 MB 94.5 MB
Events in quadrant A3,231,086647,680
Events in quadrant B3,383,642656,023
Events in quadrant C3,225,396640,003
Events in quadrant D4,642,657602,832

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137912
B0143441
C0136531
D0180581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6520520.797546%
B6520671.027607%
C6520230.352761%
D65202593.972393%

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 7596 6522 0 0 0.00% 0.00%
B 7596 6522 13 13 0.17% 0.20%
C 7596 6522 0 0 0.00% 0.00%
D 7596 6522 186 186 2.45% 2.85%

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 8 15 105421 638.0 803 784 164.0
A 12 189 16900 98.26 803 784 164.0
A 1 162 13648 78.44 803 784 164.0
B 0 189 72662 471.7 797 776 152.4
B 0 219 45717 294.89 797 776 152.4
B 3 64 44408 286.3 797 776 152.4
C 3 233 203257 1133.44 774 778 178.6
C 13 61 5594 26.96 774 778 178.6
C 14 234 3693 16.31 774 778 178.6
D 8 195 434931 2401.38 763 745 180.8
D 1 52 342945 1892.63 763 745 180.8
D 10 199 302660 1669.82 763 745 180.8

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