ASTROSAT CZTI

Data Quality Report

Orbit 29055

Creation date: 2024-06-27T19:59:44.600941
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/AS1C05_019T04_9000004162_29055cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29055cztM0_level2_quad_clean.evt
Size (bytes)606,939,840130,524,480
Size578.8 MB 124.5 MB
Events in quadrant A3,621,478867,408
Events in quadrant B4,720,553879,590
Events in quadrant C3,883,523852,471
Events in quadrant D5,629,429813,877

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161432
B0192472
C0165642
D0220902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7758811.044084%
B77583124.021655%
C77582953.802526%
D77594425.696610%

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 8728 7758 0 0 0.00% 0.00%
B 8728 7758 115 115 1.32% 1.48%
C 8728 7759 0 0 0.00% 0.00%
D 8729 7759 261 261 2.99% 3.36%

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 6 16 31735 163.18 930 911 188.9
A 13 254 12886 63.4 930 911 188.9
A 3 137 9367 44.77 930 911 188.9
B 10 246 714148 4033.08 926 902 176.8
B 5 185 170141 956.97 926 902 176.8
B 10 245 83367 466.3 926 902 176.8
C 14 238 181565 860.15 896 901 210.0
C 3 233 133488 631.25 896 901 210.0
C 14 254 58034 272.01 896 901 210.0
D 1 52 1441800 6759.37 885 858 213.2
D 8 195 769840 3607.25 885 858 213.2
D 2 250 47745 219.94 885 858 213.2

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