ASTROSAT CZTI

Data Quality Report

Orbit 14665

Creation date: 2024-06-27T16:58:12.355933
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/AS1G08_020T01_9000002168_14665cztM0_level2.evt modeM0/AS1G08_020T01_9000002168_14665cztM0_level2_quad_clean.evt
Size (bytes)552,657,600102,536,640
Size527.1 MB 97.8 MB
Events in quadrant A3,862,865656,410
Events in quadrant B3,850,020655,731
Events in quadrant C4,289,601645,347
Events in quadrant D4,228,207627,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161183
B0163372
C0173672
D0176702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7474560.749264%
B74741181.578807%
C7474570.762644%
D74742623.505486%

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 9405 7477 0 0 0.00% 0.00%
B 9405 7477 1 1 0.01% 0.01%
C 9405 7477 0 0 0.00% 0.00%
D 9405 7477 211 211 2.24% 2.82%

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 1 162 90174 468.68 932 912 190.5
A 12 189 56235 290.48 932 912 190.5
A 8 15 40192 206.24 932 912 190.5
B 0 230 67843 374.25 932 909 178.8
B 0 219 31437 170.69 932 909 178.8
B 0 205 29002 157.08 932 909 178.8
C 3 233 730180 3437.02 913 916 212.2
C 13 61 6618 26.87 913 916 212.2
C 3 234 2501 7.47 913 916 212.2
D 10 199 647366 3024.03 899 877 213.8
D 10 70 59053 272.12 899 877 213.8
D 5 222 44261 202.93 899 877 213.8

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