ASTROSAT CZTI

Data Quality Report

Orbit 34113

Creation date: 2024-06-27T20:56:58.395571
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/AS1T04_093T01_9000004872_34113cztM0_level2.evt modeM0/AS1T04_093T01_9000004872_34113cztM0_level2_quad_clean.evt
Size (bytes)243,864,00020,854,080
Size232.6 MB 19.9 MB
Events in quadrant A1,199,709114,014
Events in quadrant B2,028,750113,181
Events in quadrant C1,616,617110,645
Events in quadrant D2,361,085105,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052551
B077970
C063430
D087830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A261850.190985%
B26181736.608098%
C2618431.642475%
D26181365.194805%

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 2618 2618 0 0 0.00% 0.00%
B 2618 2618 103 103 3.93% 3.93%
C 2618 2618 37 37 1.41% 1.41%
D 2618 2618 95 95 3.63% 3.63%

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 7623 116.39 307 300 62.9
A 13 254 5077 75.92 307 300 62.9
A 10 83 4040 59.44 307 300 62.9
B 5 172 552662 9339.44 298 290 59.1
B 0 189 160706 2712.3 298 290 59.1
B 5 31 51835 871.52 298 290 59.1
C 0 10 287511 4081.65 297 299 70.4
C 15 214 113404 1607.37 297 299 70.4
C 14 254 36395 512.97 297 299 70.4
D 8 195 681253 9111.74 295 286 74.7
D 13 249 284683 3805.4 295 286 74.7
D 7 223 83867 1118.36 295 286 74.7

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