ASTROSAT CZTI

Data Quality Report

Orbit 45660

Creation date: 2024-06-27T23:14:40.835431
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_071T07_9000006116_45660cztM0_level2.fits modeM0/AS1A13_071T07_9000006116_45660cztM0_level2_quad_clean.evt
Size (bytes)522,221,760110,404,800
Size498.0 MB 105.3 MB
Events in quadrant A5,934,572735,888
Events in quadrant B3,419,471771,051
Events in quadrant C4,386,934721,802
Events in quadrant D5,077,816653,578

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217692
B0144993
C0174232
D0195012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66082083.147700%
B66071321.997881%
C66072724.116846%
D66073725.630392%

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 7658 6609 15 15 0.20% 0.23%
B 7657 6607 46 46 0.60% 0.70%
C 7657 6608 204 204 2.66% 3.09%
D 7657 6608 252 252 3.29% 3.81%

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 2914242 18744.79 751 734 155.4
A 13 248 64563 410.66 751 734 155.4
A 14 235 26336 164.72 751 734 155.4
B 5 172 216787 1470.78 752 728 146.9
B 3 112 75023 505.75 752 728 146.9
B 0 183 55124 370.29 752 728 146.9
C 9 54 1412823 8130.19 742 746 173.7
C 14 254 43621 246.86 742 746 173.7
C 2 14 12926 70.13 742 746 173.7
D 1 52 1395828 7525.37 737 712 185.4
D 13 249 380957 2051.07 737 712 185.4
D 11 241 137413 737.38 737 712 185.4

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