ASTROSAT CZTI

Data Quality Report

Orbit 06444

Creation date: 2024-06-27T15:07:19.026772
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/AS1A02_191T01_9000000854_06444cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06444cztM0_level2_quad_clean.evt
Size (bytes)465,520,32095,448,960
Size444.0 MB 91.0 MB
Events in quadrant A3,134,943608,657
Events in quadrant B3,738,124623,645
Events in quadrant C3,039,286600,830
Events in quadrant D3,712,004571,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142762
B0157791
C0142391
D0160521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69731371.964721%
B69731752.509680%
C69731051.505808%
D69731742.495339%

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 7318 6974 0 0 0.00% 0.00%
B 7318 6974 29 29 0.40% 0.42%
C 7318 6974 0 0 0.00% 0.00%
D 7318 6974 50 50 0.68% 0.72%

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 13795 78.63 807 787 165.4
A 10 133 12797 72.6 807 787 165.4
A 0 226 7859 42.75 807 787 165.4
B 0 228 444820 2833.16 808 789 156.7
B 11 51 88378 558.87 808 789 156.7
B 4 81 25157 155.48 808 789 156.7
C 13 61 6057 29.33 777 777 180.0
C 9 16 3220 13.57 777 777 180.0
C 8 222 2483 9.47 777 777 180.0
D 2 63 365270 1924.3 777 749 189.4
D 2 152 195305 1027.06 777 749 189.4
D 7 55 89488 468.45 777 749 189.4

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