ASTROSAT CZTI

Data Quality Report

Orbit 39075

Creation date: 2024-06-27T22:00:06.578776
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/AS1T05_067T01_9000005432_39075cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39075cztM0_level2_quad_clean.evt
Size (bytes)439,378,560101,381,760
Size419.0 MB 96.7 MB
Events in quadrant A3,812,479685,060
Events in quadrant B2,808,904701,234
Events in quadrant C4,252,075649,705
Events in quadrant D4,915,424606,266

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152943
B0125932
C0165952
D0187632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6124480.783801%
B6124150.244938%
C61241392.269758%
D61241462.384063%

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 8990 6126 13 13 0.14% 0.21%
B 8990 6126 1 1 0.01% 0.02%
C 8990 6126 137 137 1.52% 2.24%
D 8990 6126 130 130 1.45% 2.12%

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 15 222 634476 4552.33 685 670 139.2
A 10 83 444227 3185.86 685 670 139.2
A 13 248 28712 201.41 685 670 139.2
B 5 172 39084 288.04 684 665 133.4
B 5 184 38798 285.9 684 665 133.4
B 0 213 29459 215.88 684 665 133.4
C 3 233 722685 4616.39 664 667 156.4
C 15 208 673537 4302.15 664 667 156.4
C 15 214 255150 1627.1 664 667 156.4
D 12 235 1769596 10987.08 660 643 161.0
D 12 227 194158 1201.93 660 643 161.0
D 2 249 142996 884.16 660 643 161.0

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