ASTROSAT CZTI

Data Quality Report

Orbit 44088

Creation date: 2024-06-27T22:59:15.104332
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/AS1A13_012T01_9000005942_44088cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44088cztM0_level2_quad_clean.evt
Size (bytes)480,355,200122,613,120
Size458.1 MB 116.9 MB
Events in quadrant A4,688,284820,323
Events in quadrant B3,456,502850,098
Events in quadrant C3,594,260804,282
Events in quadrant D5,450,206707,910

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187541
B0157050
C0159870
D0214000

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7620330.433071%
B7620470.616798%
C7620230.301837%
D76204335.682415%

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 7620 7620 4 4 0.05% 0.05%
B 7620 7620 3 3 0.04% 0.04%
C 7620 7620 4 4 0.05% 0.05%
D 7620 7620 307 307 4.03% 4.03%

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 1135819 6186.72 870 851 183.5
A 15 222 139050 753.32 870 851 183.5
A 7 3 57198 307.15 870 851 183.5
B 12 111 22637 125.65 868 843 173.5
B 11 111 21334 118.14 868 843 173.5
B 14 111 21177 117.23 868 843 173.5
C 3 233 125775 604.94 860 865 206.5
C 14 254 40436 191.64 860 865 206.5
C 14 96 33952 160.24 860 865 206.5
D 13 249 1231722 5910.0 832 807 208.3
D 1 52 286919 1373.71 832 807 208.3
D 5 222 209188 1000.5 832 807 208.3

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