ASTROSAT CZTI

Data Quality Report

Orbit 09922

Creation date: 2024-06-27T15:52:16.185768
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/AS1A03_009T01_9000001412_09922cztM0_level2.evt modeM0/AS1A03_009T01_9000001412_09922cztM0_level2_quad_clean.evt
Size (bytes)221,762,88036,054,720
Size211.5 MB 34.4 MB
Events in quadrant A1,493,771223,972
Events in quadrant B1,350,361227,794
Events in quadrant C1,253,760231,570
Events in quadrant D2,421,399203,360

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0626
B0624
C0624
D0624

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06908537
B06301440
C06218404
D0101901075

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2876170.591099%
B288820.069252%
C289900.000000%
D27901485.304659%

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 3101 3033 8 8 0.26% 0.26%
B 3101 3030 0 0 0.00% 0.00%
C 3101 3052 0 0 0.00% 0.00%
D 3101 2994 113 113 3.64% 3.77%

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 15 239 212494 3096.59 326 318 68.5
A 8 15 26339 379.76 326 318 68.5
A 0 226 3023 39.48 326 318 68.5
B 0 219 28216 432.17 326 318 64.6
B 0 214 27369 419.05 326 318 64.6
B 4 81 11927 179.84 326 318 64.6
C 14 67 2488 28.49 320 321 76.1
C 13 61 2407 27.43 320 321 76.1
C 8 222 1102 10.27 320 321 76.1
D 1 52 609303 7966.51 302 295 76.4
D 8 195 249448 3259.2 302 295 76.4
D 10 253 144707 1889.07 302 295 76.4

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