ASTROSAT CZTI

Data Quality Report

Orbit 41763

Creation date: 2024-06-27T22:32:34.140548
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/AS1A12_044T19_9000005698_41763cztM0_level2.fits modeM0/AS1A12_044T19_9000005698_41763cztM0_level2_quad_clean.evt
Size (bytes)360,449,28095,091,840
Size343.8 MB 90.7 MB
Events in quadrant A3,086,236660,402
Events in quadrant B2,856,701667,519
Events in quadrant C3,094,167613,689
Events in quadrant D3,892,035565,454

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122931
B0116851
C0123471
D0151951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A531480.150546%
B5314290.545728%
C53141542.898005%
D53152695.061148%

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 7287 5315 4 4 0.05% 0.08%
B 7287 5314 17 17 0.23% 0.32%
C 7287 5315 154 154 2.11% 2.90%
D 7288 5316 248 248 3.40% 4.67%

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 507153 3858.26 637 624 131.3
A 15 223 63264 477.13 637 624 131.3
A 13 248 27663 205.96 637 624 131.3
B 5 255 126607 1043.06 622 606 120.8
B 0 245 102355 842.29 622 606 120.8
B 3 112 61730 505.99 622 606 120.8
C 0 10 512349 3689.73 596 600 138.7
C 15 214 228083 1640.16 596 600 138.7
C 12 249 17051 118.61 596 600 138.7
D 2 249 754043 5066.49 608 593 148.7
D 13 249 397182 2666.82 608 593 148.7
D 12 79 168075 1126.21 608 593 148.7

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