ASTROSAT CZTI

Data Quality Report

Orbit 10102

Creation date: 2024-06-27T15:55:02.176910
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/AS1G07_072T01_9000001452_10102cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10102cztM0_level2_quad_clean.evt
Size (bytes)480,188,160113,863,680
Size457.9 MB 108.6 MB
Events in quadrant A3,222,031763,722
Events in quadrant B3,669,935767,682
Events in quadrant C3,101,988751,286
Events in quadrant D4,111,475716,751

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138053
B0151802
C0135052
D0167072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6443691.070930%
B64431141.769362%
C6443430.667391%
D6443711.101971%

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 7733 6443 0 0 0.00% 0.00%
B 7733 6444 20 20 0.26% 0.31%
C 7733 6443 0 0 0.00% 0.00%
D 7733 6443 14 14 0.18% 0.22%

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 15 174 9163 49.6 835 819 168.2
A 0 226 8002 42.7 835 819 168.2
A 12 194 7215 38.02 835 819 168.2
B 4 81 132926 848.49 829 814 155.7
B 0 219 105360 671.45 829 814 155.7
B 0 214 104724 667.36 829 814 155.7
C 13 61 5956 28.5 792 797 181.0
C 14 67 5505 26.01 792 797 181.0
C 9 15 3764 16.39 792 797 181.0
D 0 11 526007 2714.84 800 780 193.5
D 1 52 182345 938.49 800 780 193.5
D 8 195 86255 441.81 800 780 193.5

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