ASTROSAT CZTI

Data Quality Report

Orbit 29986

Creation date: 2024-06-27T20:09:37.804164
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/AS1A10_083T01_9000004306_29986cztM0_level2.evt modeM0/AS1A10_083T01_9000004306_29986cztM0_level2_quad_clean.evt
Size (bytes)545,483,52086,757,120
Size520.2 MB 82.7 MB
Events in quadrant A3,439,757548,698
Events in quadrant B5,464,582542,590
Events in quadrant C3,494,518523,235
Events in quadrant D3,639,118517,416

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147852
B0214572
C0147602
D0153262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7104710.999437%
B71041662.336712%
C7105881.238564%
D7105390.548909%

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 7864 7106 4 4 0.05% 0.06%
B 7864 7106 3 3 0.04% 0.04%
C 7865 7107 0 0 0.00% 0.00%
D 7865 7107 18 18 0.23% 0.25%

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 3 1 29852 164.27 876 858 176.5
A 8 192 26503 145.3 876 858 176.5
A 13 254 13812 73.39 876 858 176.5
B 6 159 2050263 12278.26 862 838 166.9
B 12 111 20665 118.79 862 838 166.9
B 11 111 18794 107.58 862 838 166.9
C 14 238 134105 681.79 836 837 195.5
C 3 233 88158 446.73 836 837 195.5
C 2 114 17052 82.95 836 837 195.5
D 8 195 283862 1410.17 847 822 200.7
D 7 69 48537 237.73 847 822 200.7
D 2 234 31710 153.89 847 822 200.7

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