ASTROSAT CZTI

Data Quality Report

Orbit 09622

Creation date: 2024-06-27T15:48:31.732216
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/AS1A03_009T01_9000001366_09622cztM0_level2.evt modeM0/AS1A03_009T01_9000001366_09622cztM0_level2_quad_clean.evt
Size (bytes)468,619,20087,266,880
Size446.9 MB 83.2 MB
Events in quadrant A3,171,814546,990
Events in quadrant B3,255,319549,617
Events in quadrant C3,131,845549,815
Events in quadrant D4,171,283522,390

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139393
B0140447
C0139206
D01690611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6808320.470035%
B6806390.573024%
C6806320.470173%
D68062523.702615%

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 8948 6810 1 1 0.01% 0.01%
B 8948 6810 1 1 0.01% 0.01%
C 8948 6810 0 0 0.00% 0.00%
D 8948 6810 204 204 2.28% 3.00%

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 13 248 22417 131.07 818 801 164.9
A 0 226 7523 40.76 818 801 164.9
A 12 194 6867 36.78 818 801 164.9
B 0 214 36513 230.63 823 806 154.8
B 12 111 17148 105.55 823 806 154.8
B 11 111 13858 84.3 823 806 154.8
C 13 61 6190 29.14 802 806 184.8
C 14 67 2795 10.76 802 806 184.8
C 14 234 2199 7.54 802 806 184.8
D 12 233 691917 3499.04 782 762 197.5
D 1 239 180629 910.59 782 762 197.5
D 1 52 157108 791.52 782 762 197.5

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