ASTROSAT CZTI

Data Quality Report

Orbit 30338

Creation date: 2024-06-27T20:13:54.833697
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/AS1A10_053T13_9000004360_30338cztM0_level2.evt modeM0/AS1A10_053T13_9000004360_30338cztM0_level2_quad_clean.evt
Size (bytes)567,129,60068,961,600
Size540.9 MB 65.8 MB
Events in quadrant A3,579,907422,868
Events in quadrant B5,490,006422,359
Events in quadrant C3,567,827402,614
Events in quadrant D4,111,826400,685

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146722
B0203292
C0145822
D0162742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296831.318297%
B62962123.367217%
C62961111.763024%
D62952824.479746%

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 7561 6296 2 2 0.03% 0.03%
B 7561 6296 42 42 0.56% 0.67%
C 7561 6296 1 1 0.01% 0.02%
D 7560 6295 232 232 3.07% 3.69%

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 5 203 131717 752.66 888 877 173.8
A 8 192 23254 128.72 888 877 173.8
A 13 254 11165 59.18 888 877 173.8
B 6 159 1748410 10705.88 876 855 163.2
B 6 36 263408 1608.45 876 855 163.2
B 0 190 40199 241.03 876 855 163.2
C 14 238 142001 736.99 836 843 191.5
C 3 233 131023 679.67 836 843 191.5
C 2 114 15213 75.03 836 843 191.5
D 13 249 650411 3058.71 826 812 212.4
D 8 195 133038 622.6 826 812 212.4
D 2 250 92476 431.61 826 812 212.4

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