ASTROSAT CZTI

Data Quality Report

Orbit 10853

Creation date: 2024-06-27T16:04:32.255619
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_086T01_9000001568_10853cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10853cztM0_level2_quad_clean.evt
Size (bytes)536,019,84073,074,240
Size511.2 MB 69.7 MB
Events in quadrant A5,231,175449,139
Events in quadrant B4,553,775458,701
Events in quadrant C2,667,617474,364
Events in quadrant D3,399,421436,760

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019524118
B017245122
C01154553
D01380078

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A561882114.613742%
B561463711.346633%
C5623290.515739%
D56202254.003559%

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 6789 5644 499 499 7.35% 8.84%
B 6789 5645 422 422 6.22% 7.48%
C 6789 5649 1 1 0.01% 0.02%
D 6789 5647 121 121 1.78% 2.14%

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 8 5 2544428 19113.11 654 642 133.1
A 15 223 48293 358.03 654 642 133.1
A 13 251 35334 260.66 654 642 133.1
B 4 239 1739095 13445.19 673 658 129.3
B 15 185 60716 464.49 673 658 129.3
B 0 214 41135 313.05 673 658 129.3
C 14 234 5916 33.11 682 688 157.9
C 13 61 4845 26.33 682 688 157.9
C 14 67 2122 9.08 682 688 157.9
D 5 222 345298 2103.42 672 656 163.8
D 2 14 261489 1591.92 672 656 163.8
D 12 233 65421 395.27 672 656 163.8

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