ASTROSAT CZTI

Data Quality Report

Orbit 16086

Creation date: 2024-06-27T17:17:48.570877
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/AS1T02_110T01_9000002376_16086cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16086cztM0_level2_quad_clean.evt
Size (bytes)532,895,04092,272,320
Size508.2 MB 88.0 MB
Events in quadrant A3,635,822582,509
Events in quadrant B3,982,603582,201
Events in quadrant C3,736,489558,278
Events in quadrant D4,260,038534,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161683
B0170712
C0161302
D0183512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7707811.050993%
B77071221.582977%
C77071091.414299%
D77073434.450500%

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 8443 7709 13 13 0.15% 0.17%
B 8443 7709 14 14 0.17% 0.18%
C 8443 7708 0 0 0.00% 0.00%
D 8443 7710 289 289 3.42% 3.75%

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 15 239 69624 370.65 912 890 185.4
A 12 96 47282 250.17 912 890 185.4
A 9 143 10771 53.28 912 890 185.4
B 0 189 145705 821.19 915 889 176.3
B 7 220 55627 310.4 915 889 176.3
B 3 209 50651 282.18 915 889 176.3
C 3 233 139606 669.46 881 884 207.2
C 14 238 131571 630.68 881 884 207.2
C 8 128 11416 50.82 881 884 207.2
D 7 38 768783 3591.34 873 849 213.8
D 12 218 127621 592.87 873 849 213.8
D 2 234 28674 130.13 873 849 213.8

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