ASTROSAT CZTI

Data Quality Report

Orbit 46433

Creation date: 2024-06-27T23:23:09.332220
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/AS1A13_062T01_9000006208_46433cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46433cztM0_level2_quad_clean.evt
Size (bytes)486,198,720117,927,360
Size463.7 MB 112.5 MB
Events in quadrant A6,409,915766,455
Events in quadrant B3,656,326808,864
Events in quadrant C3,606,916782,581
Events in quadrant D3,774,548720,580

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235122
B0155052
C0154112
D0162772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70774806.782535%
B70783444.860130%
C70781912.698502%
D70772263.193444%

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 9087 7077 0 0 0.00% 0.00%
B 9088 7078 11 11 0.12% 0.16%
C 9088 7079 0 0 0.00% 0.00%
D 9087 7078 39 39 0.43% 0.55%

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 3057450 17059.11 865 848 179.2
A 13 254 12896 67.24 865 848 179.2
A 3 137 10381 53.2 865 848 179.2
B 0 189 147724 845.35 864 836 173.8
B 0 190 28248 157.76 864 836 173.8
B 12 111 23428 130.02 864 836 173.8
C 3 233 141271 684.8 863 869 205.0
C 9 54 45185 216.15 863 869 205.0
C 14 254 35992 171.31 863 869 205.0
D 13 249 347342 1619.92 864 839 213.9
D 2 249 72517 335.1 864 839 213.9
D 2 234 31241 142.13 864 839 213.9

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