ASTROSAT CZTI

Data Quality Report

Orbit 01047

Creation date: 2024-06-27T14:06:41.553672
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/AS1P01_998T02_9000000190_01047cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01047cztM0_level2_quad_clean.evt
Size (bytes)1,276,727,040123,171,840
Size1.2 GB 117.5 MB
Events in quadrant A8,708,049832,617
Events in quadrant B9,329,054834,796
Events in quadrant C9,148,989809,827
Events in quadrant D10,986,255733,960

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312131
B0329981
C0325244
D0380741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A745560.080483%
B7456530.710837%
C7455580.778001%
D745591312.246814%

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 7585 7456 286 286 3.77% 3.84%
B 7586 7457 418 418 5.51% 5.61%
C 7585 7456 393 393 5.18% 5.27%
D 7585 7455 1268 1268 16.72% 17.01%

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 11 79 8245 10.94 2268 2283 544.9
A 3 111 6999 8.65 2268 2283 544.9
A 15 233 6918 8.51 2268 2283 544.9
B 5 249 83375 144.82 2372 2381 559.3
B 8 234 64397 110.89 2372 2381 559.3
B 15 22 55641 95.23 2372 2381 559.3
C 15 241 358374 584.59 2180 2259 609.2
C 8 208 187918 304.77 2180 2259 609.2
C 3 79 41888 65.05 2180 2259 609.2
D 1 83 521949 888.11 2034 2095 585.3
D 10 125 166463 280.8 2034 2095 585.3
D 2 14 46979 76.68 2034 2095 585.3

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