ASTROSAT CZTI

Data Quality Report

Orbit 34151

Creation date: 2024-06-27T20:57:08.660526
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_059T05_9000004876_34151cztM0_level2.evt modeM0/AS1A11_059T05_9000004876_34151cztM0_level2_quad_clean.evt
Size (bytes)277,087,68045,731,520
Size264.3 MB 43.6 MB
Events in quadrant A1,652,220284,616
Events in quadrant B1,856,421285,143
Events in quadrant C2,062,416288,581
Events in quadrant D2,572,297268,839

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073041
B077521
C082531
D099961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A363640.110011%
B3636350.962596%
C3636732.007701%
D36361113.052805%

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 3636 3636 0 0 0.00% 0.00%
B 3636 3636 22 22 0.61% 0.61%
C 3636 3636 54 54 1.49% 1.49%
D 3636 3636 113 113 3.11% 3.11%

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 11046 123.46 423 415 86.1
A 13 254 6529 71.0 423 415 86.1
A 3 137 4310 45.23 423 415 86.1
B 5 255 71130 858.19 419 408 82.4
B 5 172 65833 793.91 419 408 82.4
B 0 245 26541 317.11 419 408 82.4
C 0 10 279834 2910.61 407 411 96.0
C 15 214 152209 1581.2 407 411 96.0
C 9 187 22877 234.02 407 411 96.0
D 8 195 464576 4578.52 410 398 101.4
D 10 118 322299 3175.14 410 398 101.4
D 2 120 72565 711.84 410 398 101.4

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