ASTROSAT CZTI

Data Quality Report

Orbit 07111

Creation date: 2024-06-27T15:15:43.989730
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/AS1A02_090T01_9000000970_07111cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07111cztM0_level2_quad_clean.evt
Size (bytes)486,970,56097,372,800
Size464.4 MB 92.9 MB
Events in quadrant A3,312,289625,391
Events in quadrant B3,509,985631,136
Events in quadrant C3,388,545622,309
Events in quadrant D4,067,997589,479

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143672
B0146841
C0146671
D0162561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68993064.435425%
B68993094.478910%
C68991812.623569%
D68993214.652848%

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 6919 6899 0 0 0.00% 0.00%
B 6919 6899 4 4 0.06% 0.06%
C 6919 6899 16 16 0.23% 0.23%
D 6919 6900 61 61 0.88% 0.88%

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 8 15 10988 57.38 852 835 176.9
A 14 111 8397 42.74 852 835 176.9
A 13 14 8099 41.06 852 835 176.9
B 0 214 102717 616.93 856 836 165.1
B 0 219 37377 221.27 856 836 165.1
B 10 246 27635 162.28 856 836 165.1
C 4 254 101415 515.79 830 836 195.0
C 10 22 23724 117.37 830 836 195.0
C 9 68 20368 100.16 830 836 195.0
D 2 216 501450 2390.46 832 803 209.4
D 8 195 324479 1545.47 832 803 209.4
D 5 81 37281 174.17 832 803 209.4

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