ASTROSAT CZTI

Data Quality Report

Orbit 33599

Creation date: 2024-06-27T20:50:37.731005
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/AS1A11_060T01_9000004808_33599cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33599cztM0_level2_quad_clean.evt
Size (bytes)522,604,80056,612,160
Size498.4 MB 54.0 MB
Events in quadrant A2,431,732361,901
Events in quadrant B5,281,763351,342
Events in quadrant C4,334,730304,962
Events in quadrant D3,431,856336,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104083
B0191912
C0158732
D0138852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A512670.136559%
B512653210.378463%
C512663812.446352%
D5126541.053453%

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 7189 5127 1 1 0.01% 0.02%
B 7189 5126 352 352 4.90% 6.87%
C 7189 5127 627 627 8.72% 12.23%
D 7189 5127 48 48 0.67% 0.94%

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 15 169 21734 171.28 622 610 123.3
A 13 254 8809 66.48 622 610 123.3
A 10 83 6719 49.53 622 610 123.3
B 15 222 1668609 14374.23 604 589 116.0
B 5 172 878890 7568.79 604 589 116.0
B 4 251 130400 1118.65 604 589 116.0
C 4 254 1431867 10855.05 573 579 131.9
C 0 10 247480 1872.53 573 579 131.9
C 15 214 210987 1595.76 573 579 131.9
D 8 195 617991 4160.76 606 592 148.4
D 13 249 205473 1380.73 606 592 148.4
D 2 250 83516 558.84 606 592 148.4

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