ASTROSAT CZTI

Data Quality Report

Orbit 42923

Creation date: 2024-06-27T22:45:50.419544
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_143T01_9000005830_42923cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42923cztM0_level2_quad_clean.evt
Size (bytes)349,680,96091,771,200
Size333.5 MB 87.5 MB
Events in quadrant A2,975,463636,258
Events in quadrant B2,748,641642,464
Events in quadrant C2,510,688616,865
Events in quadrant D4,312,618526,303

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120032
B0116052
C0105272
D0163514

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5096330.647567%
B5096611.197017%
C509660.117739%
D50954518.851816%

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 7159 5097 16 16 0.22% 0.31%
B 7159 5097 36 36 0.50% 0.71%
C 7159 5097 2 2 0.03% 0.04%
D 7158 5096 423 423 5.91% 8.30%

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 10 83 595156 5033.26 581 568 118.1
A 2 79 45813 383.0 581 568 118.1
A 15 222 43631 364.53 581 568 118.1
B 4 81 409430 3745.57 577 562 109.2
B 4 171 38498 347.52 577 562 109.2
B 5 172 14722 129.72 577 562 109.2
C 15 214 206288 1550.96 574 579 132.6
C 14 254 21458 157.42 574 579 132.6
C 12 249 13168 94.92 574 579 132.6
D 1 47 968778 7326.74 548 534 132.2
D 1 52 409881 3097.55 548 534 132.2
D 2 249 199384 1504.71 548 534 132.2

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