ASTROSAT CZTI

Data Quality Report

Orbit 11389

Creation date: 2024-06-27T16:12:13.687570
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_022T03_9000001664_11389cztM0_level2.evt modeM0/AS1A04_022T03_9000001664_11389cztM0_level2_quad_clean.evt
Size (bytes)541,800,000103,239,360
Size516.7 MB 98.5 MB
Events in quadrant A3,208,376685,466
Events in quadrant B4,559,464665,367
Events in quadrant C2,890,951718,823
Events in quadrant D5,345,875640,270

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133692
B0175361
C0124151
D0199901

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5959671.124350%
B59594327.249539%
C5959320.537003%
D59594767.987917%

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 7204 5960 9 9 0.12% 0.15%
B 7204 5960 242 242 3.36% 4.06%
C 7204 5960 0 0 0.00% 0.00%
D 7204 5960 393 393 5.46% 6.59%

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 5 233173 1525.25 754 741 152.4
A 13 248 32285 207.0 754 741 152.4
A 11 29 17440 109.58 754 741 152.4
B 4 239 1418425 10337.69 729 711 137.1
B 11 51 164343 1193.17 729 711 137.1
B 0 214 49180 353.42 729 711 137.1
C 13 61 5262 26.2 741 749 172.3
C 12 4 1802 6.11 741 749 172.3
C 3 202 1757 5.85 741 749 172.3
D 10 253 1087735 6459.96 712 695 168.3
D 1 52 851620 5056.8 712 695 168.3
D 14 34 327566 1942.5 712 695 168.3

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