ASTROSAT CZTI

Data Quality Report

Orbit 05064

Creation date: 2024-06-27T14:50:48.702389
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/AS1G05_218T04_9000000640_05064cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05064cztM0_level2_quad_clean.evt
Size (bytes)391,573,44068,483,520
Size373.4 MB 65.3 MB
Events in quadrant A2,835,640420,582
Events in quadrant B2,862,226422,800
Events in quadrant C2,741,174412,285
Events in quadrant D3,013,717401,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123072
B0123201
C0122321
D0130981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5962470.788326%
B5962460.771553%
C5962220.369004%
D59621091.828246%

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 7167 5963 1 1 0.01% 0.02%
B 7167 5963 0 0 0.00% 0.00%
C 7167 5963 0 0 0.00% 0.00%
D 7167 5963 67 67 0.93% 1.12%

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 14 111 41363 280.6 712 697 144.9
A 0 50 35595 240.8 712 697 144.9
A 13 251 18447 122.48 712 697 144.9
B 15 204 81905 591.89 711 695 137.2
B 0 219 23303 164.78 711 695 137.2
B 12 111 12351 84.95 711 695 137.2
C 1 16 87727 551.67 678 682 157.8
C 13 61 5515 30.63 678 682 157.8
C 14 67 3482 17.75 678 682 157.8
D 13 235 196931 1165.1 685 666 168.5
D 10 15 89454 527.08 685 666 168.5
D 2 136 43299 253.08 685 666 168.5

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