ASTROSAT CZTI

Data Quality Report

Orbit 05448

Creation date: 2024-06-27T14:55:20.385814
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_204T01_9000000688_05448cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05448cztM0_level2_quad_clean.evt
Size (bytes)78,598,08020,070,720
Size75.0 MB 19.1 MB
Events in quadrant A506,633123,864
Events in quadrant B542,644127,142
Events in quadrant C510,551132,508
Events in quadrant D724,919122,374

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038791220
B039311191
C038851168
D045971391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03810
B0388
C0386
D0388

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133100.000000%
B134930.222387%
C135800.000000%
D1321141.059803%

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 1836 1559 0 0 0.00% 0.00%
B 1946 1593 1 1 0.05% 0.06%
C 1927 1611 0 0 0.00% 0.00%
D 1933 1563 12 12 0.62% 0.77%

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 6 2067 67.13 130 128 28.9
A 0 226 1237 38.4 130 128 28.9
A 12 194 1215 37.63 130 128 28.9
B 4 48 15146 538.92 134 131 27.9
B 0 219 3868 134.13 134 131 27.9
B 10 245 2904 99.53 134 131 27.9
C 8 128 3274 98.52 128 129 31.9
C 8 112 1567 45.05 128 129 31.9
C 12 4 1501 42.98 128 129 31.9
D 2 33 201349 6339.03 122 118 31.7
D 8 195 24463 766.9 122 118 31.7
D 4 95 18959 593.52 122 118 31.7

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