ASTROSAT CZTI

Data Quality Report

Orbit 47132

Creation date: 2024-06-27T23:32:05.612874
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/AS1C09_003T01_9000006298_47132cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47132cztM0_level2_quad_clean.evt
Size (bytes)536,544,000112,366,080
Size511.7 MB 107.2 MB
Events in quadrant A7,041,879770,055
Events in quadrant B4,142,974758,903
Events in quadrant C3,293,848724,744
Events in quadrant D4,824,533647,141

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262210
B0171610
C0151980
D0195410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71981051.458739%
B71982493.459294%
C7198771.069742%
D71994346.028615%

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 7198 7198 6 6 0.08% 0.08%
B 7198 7198 179 179 2.49% 2.49%
C 7198 7198 57 57 0.79% 0.79%
D 7198 7198 360 360 5.00% 5.00%

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 10 83 3873644 23364.34 795 779 165.8
A 13 248 26339 154.2 795 779 165.8
A 0 243 21079 122.47 795 779 165.8
B 8 234 721658 4713.35 783 758 152.9
B 0 198 71318 461.33 783 758 152.9
B 0 200 58212 375.64 783 758 152.9
C 14 254 274892 1524.67 766 768 179.8
C 15 208 19344 103.32 766 768 179.8
C 12 16 5521 26.44 766 768 179.8
D 12 3 783632 4166.56 754 728 187.9
D 2 249 351354 1866.01 754 728 187.9
D 2 120 221102 1172.81 754 728 187.9

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