ASTROSAT CZTI

Data Quality Report

Orbit 07724

Creation date: 2024-06-27T15:23:10.461065
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/AS1G06_064T01_9000001066_07724cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07724cztM0_level2_quad_clean.evt
Size (bytes)431,835,84098,962,560
Size411.8 MB 94.4 MB
Events in quadrant A3,093,733638,910
Events in quadrant B3,216,457653,134
Events in quadrant C3,052,238633,414
Events in quadrant D3,255,977600,637

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138413
B0140912
C0137042
D0143422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6762200.295770%
B6762400.591541%
C6762100.147885%
D6762260.384502%

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 8592 6764 1 1 0.01% 0.01%
B 8592 6764 2 2 0.02% 0.03%
C 8592 6764 0 0 0.00% 0.00%
D 8592 6764 11 11 0.13% 0.16%

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 15 234 25144 148.38 794 776 164.2
A 3 1 8389 46.36 794 776 164.2
A 0 226 7623 41.69 794 776 164.2
B 0 229 27469 174.61 805 788 152.8
B 0 214 17433 108.93 805 788 152.8
B 12 111 14801 91.71 805 788 152.8
C 9 68 9756 49.57 777 781 181.0
C 13 61 5878 28.15 777 781 181.0
C 8 128 4792 22.15 777 781 181.0
D 8 195 104031 545.64 770 746 189.3
D 13 105 78467 410.59 770 746 189.3
D 13 104 36184 187.21 770 746 189.3

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