ASTROSAT CZTI

Data Quality Report

Orbit 38167

Creation date: 2024-06-27T21:49:14.743334
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/AS1A07_145T01_9000005370_38167cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38167cztM0_level2_quad_clean.evt
Size (bytes)329,866,56093,441,600
Size314.6 MB 89.1 MB
Events in quadrant A2,901,158630,235
Events in quadrant B2,711,545639,860
Events in quadrant C2,650,458610,525
Events in quadrant D3,517,234562,453

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120543
B0117572
C0112262
D0141202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5522260.470844%
B5522210.380297%
C552260.108656%
D5522851.539297%

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 7134 5523 13 13 0.18% 0.24%
B 7134 5523 12 12 0.17% 0.22%
C 7134 5523 2 2 0.03% 0.04%
D 7134 5523 85 85 1.19% 1.54%

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 398277 3149.7 617 604 126.3
A 9 143 41942 327.41 617 604 126.3
A 12 189 38129 297.21 617 604 126.3
B 0 229 155826 1318.3 615 598 117.7
B 5 172 36345 303.59 615 598 117.7
B 4 171 33024 275.38 615 598 117.7
C 15 214 229341 1611.66 607 611 141.9
C 0 10 15154 102.47 607 611 141.9
C 1 23 12699 85.17 607 611 141.9
D 12 235 719023 4825.64 606 588 148.9
D 10 199 113671 759.57 606 588 148.9
D 13 249 90307 602.63 606 588 148.9

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