ASTROSAT CZTI

Data Quality Report

Orbit 15405

Creation date: 2024-06-27T17:08:05.339204
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_072T01_9000002272_15405cztM0_level2.evt modeM0/AS1G08_072T01_9000002272_15405cztM0_level2_quad_clean.evt
Size (bytes)639,898,560112,714,560
Size610.3 MB 107.5 MB
Events in quadrant A3,761,129729,115
Events in quadrant B4,054,582743,295
Events in quadrant C4,237,339727,822
Events in quadrant D6,788,339661,005

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165963
B0172082
C0177912
D0257172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7944610.767875%
B7944991.246224%
C79441391.749748%
D79447739.730614%

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 8790 7947 4 4 0.05% 0.05%
B 8790 7947 4 4 0.05% 0.05%
C 8790 7946 42 42 0.48% 0.53%
D 8790 7946 734 734 8.35% 9.24%

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 9 143 31519 156.78 959 938 195.1
A 14 238 11221 52.72 959 938 195.1
A 15 69 10387 48.44 959 938 195.1
B 3 209 54575 291.18 962 937 184.2
B 0 214 51849 276.38 962 937 184.2
B 15 35 35685 188.63 962 937 184.2
C 3 233 508909 2398.36 920 924 211.8
C 7 247 74101 345.49 920 924 211.8
C 14 234 43256 199.86 920 924 211.8
D 13 122 1822036 8268.42 898 870 220.3
D 5 222 582844 2642.27 898 870 220.3
D 2 33 429711 1947.02 898 870 220.3

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