ASTROSAT CZTI

Data Quality Report

Orbit 06472

Creation date: 2024-06-27T15:07:40.331745
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/AS1G06_139T02_9000000862_06472cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06472cztM0_level2_quad_clean.evt
Size (bytes)456,894,72076,651,200
Size435.7 MB 73.1 MB
Events in quadrant A3,647,890469,097
Events in quadrant B3,313,424469,567
Events in quadrant C3,161,590459,234
Events in quadrant D3,251,756448,954

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154883
B0141752
C0140482
D0143152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68021492.190532%
B68021422.087621%
C6802781.146722%
D68021051.543664%

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 7642 6803 0 0 0.00% 0.00%
B 7642 6803 0 0 0.00% 0.00%
C 7642 6803 0 0 0.00% 0.00%
D 7642 6803 10 10 0.13% 0.15%

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 15 236 397508 2317.37 835 819 171.2
A 8 15 12221 66.61 835 819 171.2
A 10 133 9774 52.31 835 819 171.2
B 4 81 32087 190.11 843 821 164.5
B 12 111 17047 98.66 843 821 164.5
B 11 111 13341 76.13 843 821 164.5
C 13 61 6330 29.21 809 813 188.9
C 3 202 1994 6.25 809 813 188.9
C 10 170 1897 5.74 809 813 188.9
D 13 137 57760 286.14 811 785 199.1
D 5 97 42517 209.58 811 785 199.1
D 2 152 21163 102.34 811 785 199.1

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