ASTROSAT CZTI

Data Quality Report

Orbit 23536

Creation date: 2024-06-27T18:55:51.538961
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/AS1A07_011T01_9000003482_23536cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23536cztM0_level2_quad_clean.evt
Size (bytes)457,669,440106,436,160
Size436.5 MB 101.5 MB
Events in quadrant A3,229,927712,190
Events in quadrant B3,479,695720,854
Events in quadrant C3,233,678678,854
Events in quadrant D3,482,801665,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133312
B0141592
C0134342
D0145122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6395330.516028%
B6395721.125880%
C6395701.094605%
D6395510.797498%

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 7760 6396 0 0 0.00% 0.00%
B 7760 6396 12 12 0.15% 0.19%
C 7760 6396 0 0 0.00% 0.00%
D 7760 6396 39 39 0.50% 0.61%

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 13 254 11118 62.13 837 822 165.7
A 0 226 7276 38.95 837 822 165.7
A 3 137 6737 35.69 837 822 165.7
B 0 189 162933 1062.0 825 808 152.7
B 3 64 24802 157.17 825 808 152.7
B 12 111 17774 111.14 825 808 152.7
C 14 238 129356 715.0 784 790 179.8
C 7 247 30473 165.08 784 790 179.8
C 0 10 9140 46.44 784 790 179.8
D 1 52 249099 1294.34 797 774 191.9
D 9 85 114926 594.99 797 774 191.9
D 7 38 40659 207.89 797 774 191.9

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