ASTROSAT CZTI

Data Quality Report

Orbit 09353

Creation date: 2024-06-27T15:44:50.615755
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/AS1G07_022T01_9000001322_09353cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09353cztM0_level2_quad_clean.evt
Size (bytes)2,869,735,680511,283,520
Size2.7 GB 487.6 MB
Events in quadrant A25,231,1053,203,426
Events in quadrant B18,336,7013,354,375
Events in quadrant C17,989,9913,260,597
Events in quadrant D22,886,2553,155,959

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011372614110
B09012711150
C09017910223
D011113517942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085497
B085397
C085398
D085395

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08810
B0872
C0874
D0875

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3628918925.213701%
B366603390.924714%
C367795501.495419%
D3627913163.627443%

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 50703 37743 1139 1139 2.25% 3.02%
B 50703 38049 37 37 0.07% 0.10%
C 50703 38171 334 334 0.66% 0.88%
D 50703 37639 910 910 1.79% 2.42%

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 5 7031843 8427.06 4163 4080 834.0
A 1 162 659008 785.33 4163 4080 834.0
A 0 8 373031 442.41 4163 4080 834.0
B 0 214 384326 475.84 4308 4208 798.8
B 4 80 325426 402.11 4308 4208 798.8
B 0 219 281396 346.99 4308 4208 798.8
C 4 254 1821992 1942.62 4107 4116 935.8
C 10 22 79067 80.09 4107 4116 935.8
C 13 61 31493 29.26 4107 4116 935.8
D 1 52 3080422 2879.65 4017 3923 1068.4
D 12 227 2102621 1964.41 4017 3923 1068.4
D 7 71 670192 623.64 4017 3923 1068.4

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