ASTROSAT CZTI

Data Quality Report

Orbit 03375

Creation date: 2024-06-27T14:28:11.820108
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/AS1G05_112T01_9000000452_03375cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03375cztM0_level2_quad_clean.evt
Size (bytes)2,381,760884,160
Size2.3 MB 863.4 KB
Events in quadrant A18,5574,606
Events in quadrant B16,5173,837
Events in quadrant C18,3134,169
Events in quadrant D13,0183,151

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02929
B03028
C03432
D03128

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029972907
B031813107
C034633380
D030322965

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4500.000000%
B3700.000000%
C4100.000000%
D3400.000000%

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 654 84 0 0 0.00% 0.00%
B 596 68 0 0 0.00% 0.00%
C 436 73 0 0 0.00% 0.00%
D 657 65 0 0 0.00% 0.00%

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 14 249 47 19.01 4 4 2.3
A 10 220 44 17.68 4 4 2.3
A 0 226 42 16.8 4 4 2.3
B 2 249 548 277.01 3 3 2.0
B 0 229 325 163.66 3 3 2.0
B 15 204 148 73.7 3 3 2.0
C 6 80 1050 462.69 4 4 2.3
C 12 4 54 22.12 4 4 2.3
C 15 208 29 11.06 4 4 2.3
D 14 226 35 17.45 3 3 1.8
D 2 37 29 14.18 3 3 1.8
D 13 137 25 12.0 3 3 1.8

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
Veto Counter