ASTROSAT CZTI

Data Quality Report

Orbit 14319

Creation date: 2024-06-27T16:53:28.514340
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_078T01_9000002110_14319cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14319cztM0_level2_quad_clean.evt
Size (bytes)637,577,28081,106,560
Size608.0 MB 77.3 MB
Events in quadrant A3,959,204490,965
Events in quadrant B3,994,373490,341
Events in quadrant C4,113,284481,831
Events in quadrant D6,717,781454,238

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165723
B0167212
C0165682
D0253162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77472543.278689%
B77472773.575578%
C77472132.749451%
D77476989.009939%

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 8538 7748 3 3 0.04% 0.04%
B 8538 7748 1 1 0.01% 0.01%
C 8538 7748 0 0 0.00% 0.00%
D 8538 7748 357 357 4.18% 4.61%

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 12 189 121115 598.0 983 960 200.9
A 8 15 33612 162.51 983 960 200.9
A 9 143 18620 87.89 983 960 200.9
B 0 229 51248 264.69 972 947 190.0
B 10 245 37895 194.43 972 947 190.0
B 0 219 29308 149.24 972 947 190.0
C 3 233 411143 1843.74 948 954 222.5
C 13 61 6733 25.98 948 954 222.5
C 10 22 4653 16.63 948 954 222.5
D 5 222 1885102 8590.97 913 889 219.3
D 12 110 961328 4379.07 913 889 219.3
D 1 52 178917 811.71 913 889 219.3

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