ASTROSAT CZTI

Data Quality Report

Orbit 24113

Creation date: 2024-06-27T19:02:18.623198
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_012T04_9000003564_24113cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24113cztM0_level2_quad_clean.evt
Size (bytes)502,963,200102,024,000
Size479.7 MB 97.3 MB
Events in quadrant A2,503,481738,598
Events in quadrant B2,560,763742,752
Events in quadrant C2,443,709694,754
Events in quadrant D7,382,628560,221

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012523
B012119
C012117
D012216

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123551837
B0126501982
C0123621948
D0291513774

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0141
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5071230.453559%
B5045440.872151%
C5034410.814462%
D4955173535.015136%

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 7113 5205 0 0 0.00% 0.00%
B 7102 5189 8 8 0.11% 0.15%
C 7097 5162 0 0 0.00% 0.00%
D 7076 5093 1629 1629 23.02% 31.99%

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 2 250 10091 73.89 644 632 128.0
A 4 2 10057 73.62 644 632 128.0
A 13 254 8452 61.08 644 632 128.0
B 0 228 34530 287.2 633 619 118.1
B 10 247 15922 129.6 633 619 118.1
B 12 111 13348 107.8 633 619 118.1
C 14 238 98324 713.07 599 604 137.0
C 7 247 7305 48.9 599 604 137.0
C 13 61 4143 25.82 599 604 137.0
D 1 52 4488141 35833.95 519 502 125.2
D 8 195 769091 6137.21 519 502 125.2
D 12 233 101829 809.1 519 502 125.2

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