ASTROSAT CZTI

Data Quality Report

Orbit 29144

Creation date: 2024-06-27T20:00:46.958884
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_099T01_9000004184_29144cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29144cztM0_level2_quad_clean.evt
Size (bytes)517,550,40098,985,600
Size493.6 MB 94.4 MB
Events in quadrant A3,370,219631,236
Events in quadrant B3,449,422647,410
Events in quadrant C3,530,669617,500
Events in quadrant D4,831,284596,535

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147771
B0149391
C0149311
D0193201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7250520.717241%
B7251570.786098%
C7251971.337747%
D72512893.985657%

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 7570 7251 0 0 0.00% 0.00%
B 7571 7252 0 0 0.00% 0.00%
C 7571 7252 0 0 0.00% 0.00%
D 7571 7252 200 200 2.64% 2.76%

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 0 13 14433 77.34 868 850 175.6
A 13 254 13185 70.24 868 850 175.6
A 3 137 8826 45.42 868 850 175.6
B 0 183 25528 146.84 863 836 168.2
B 12 111 21258 121.45 863 836 168.2
B 11 111 19271 109.63 863 836 168.2
C 14 238 134708 675.63 839 844 198.1
C 3 233 104212 521.71 839 844 198.1
C 2 114 16940 81.24 839 844 198.1
D 1 52 1068469 5348.27 831 808 199.6
D 8 195 372881 1863.84 831 808 199.6
D 12 233 164606 820.52 831 808 199.6

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