ASTROSAT CZTI

Data Quality Report

Orbit 09398

Creation date: 2024-06-27T15:45:34.200631
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_044T09_9000001334_09398cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09398cztM0_level2_quad_clean.evt
Size (bytes)417,507,84080,694,720
Size398.2 MB 77.0 MB
Events in quadrant A3,208,459496,619
Events in quadrant B2,974,537504,103
Events in quadrant C2,858,971509,143
Events in quadrant D3,164,322484,757

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01383439
B01336529
C01321444
D01420867

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64371322.050645%
B64391392.158720%
C6433630.979325%
D64301612.503888%

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 6606 6452 3 3 0.05% 0.05%
B 6606 6452 1 1 0.02% 0.02%
C 6606 6450 0 0 0.00% 0.00%
D 6606 6452 39 39 0.59% 0.60%

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 8 5 281344 1819.82 744 727 154.2
A 14 111 19134 119.37 744 727 154.2
A 12 236 15743 97.38 744 727 154.2
B 0 214 29040 196.45 747 727 144.1
B 0 187 22227 149.17 747 727 144.1
B 12 111 16338 108.31 747 727 144.1
C 13 61 5639 28.91 732 733 169.7
C 14 234 2353 9.54 732 733 169.7
C 3 202 1737 5.92 732 733 169.7
D 1 52 221218 1263.78 716 697 174.5
D 8 195 60924 345.15 716 697 174.5
D 9 64 47444 267.9 716 697 174.5

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