ASTROSAT CZTI

Data Quality Report

Orbit 20230528_T05_100T01_9000005668_level2

Creation date: 2023-05-31T10:55:33.392185
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/AS1T05_100T01_9000005668cztM0_level2.fits modeM0/AS1T05_100T01_9000005668cztM0_level2_quad_clean.evt
Size (bytes)692,210,880682,669,440
Size660.1 MB 651.0 MB
Events in quadrant A4,150,0164,032,761
Events in quadrant B4,012,5384,052,771
Events in quadrant C3,992,8623,808,853
Events in quadrant D3,516,9043,490,258

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03160
B03160
C03160
D03170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015840
B015820
C015800
D015720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01686100
B01586050
C01753070
D01891510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A771122360.306048%
B771443120.404438%
C7717024603.187767%
D7712420952.716405%

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 113364 77438 0 0 0.00% 0.00%
B 113364 77422 0 0 0.00% 0.00%
C 113364 77155 0 0 0.00% 0.00%
D 113364 77404 0 0 0.00% 0.00%

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 9 19 3406 8.79 1083 1011 272.6
A 7 110 3393 8.74 1083 1011 272.6
A 0 29 3313 8.45 1083 1011 272.6
B 2 9 3461 11.91 1060 1009 206.0
B 3 17 2840 8.89 1060 1009 206.0
B 5 128 2811 8.75 1060 1009 206.0
C 1 81 3223 8.21 1054 984 272.8
C 1 80 3119 7.83 1054 984 272.8
C 3 202 3083 7.69 1054 984 272.8
D 7 3 2673 6.53 1003 914 269.4
D 10 189 2604 6.27 1003 914 269.4
D 3 14 2575 6.17 1003 914 269.4

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