ASTROSAT CZTI

Data Quality Report

Orbit 05369

Creation date: 2024-06-27T14:54:26.480699
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/AS1G05_021T02_9000000680_05369cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05369cztM0_level2_quad_clean.evt
Size (bytes)455,054,40078,600,960
Size434.0 MB 75.0 MB
Events in quadrant A3,277,268485,305
Events in quadrant B3,448,004502,364
Events in quadrant C3,522,249493,538
Events in quadrant D3,110,584464,104

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138723
B0143512
C0144292
D0135252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62311452.327074%
B6231811.299952%
C6231500.802439%
D6231600.962927%

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 7536 6231 65 65 0.86% 1.04%
B 7536 6231 12 12 0.16% 0.19%
C 7536 6231 4 4 0.05% 0.06%
D 7536 6232 29 29 0.38% 0.47%

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 0 50 226615 1458.52 754 740 154.9
A 15 174 76870 491.59 754 740 154.9
A 13 251 40740 258.29 754 740 154.9
B 4 80 202381 1375.02 774 757 146.6
B 0 219 71625 483.3 774 757 146.6
B 11 51 51227 344.19 774 757 146.6
C 1 16 559630 3313.39 736 743 168.7
C 9 247 75543 443.46 736 743 168.7
C 14 67 10079 55.35 736 743 168.7
D 4 95 143207 803.61 724 703 177.3
D 8 195 81708 456.8 724 703 177.3
D 2 14 49650 276.02 724 703 177.3

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