ASTROSAT CZTI

Data Quality Report

Orbit 01322

Creation date: 2024-06-27T14:10:58.063544
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/AS1G04_002T02_9000000230_01322cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01322cztM0_level2_quad_clean.evt
Size (bytes)1,178,683,200105,131,520
Size1.1 GB 100.3 MB
Events in quadrant A9,003,839683,987
Events in quadrant B9,591,837685,281
Events in quadrant C8,532,205666,447
Events in quadrant D8,099,532654,339

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0318101
B0334830
C0303810
D0291400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7092200.282008%
B7092500.705020%
C709250.070502%
D7092280.394811%

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 7092 7092 442 442 6.23% 6.23%
B 7092 7092 613 613 8.64% 8.64%
C 7092 7092 287 287 4.05% 4.05%
D 7092 7092 333 333 4.70% 4.70%

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 4 32 242720 444.9 2242 2258 540.5
A 8 14 48958 86.4 2242 2258 540.5
A 15 127 34509 59.67 2242 2258 540.5
B 8 4 489468 893.98 2294 2307 544.9
B 12 52 162179 293.38 2294 2307 544.9
B 15 22 128770 232.07 2294 2307 544.9
C 15 241 355665 607.37 2067 2136 582.1
C 3 79 39354 63.94 2067 2136 582.1
C 8 208 39242 63.75 2067 2136 582.1
D 10 84 293030 459.51 2031 2106 633.1
D 10 125 78527 120.71 2031 2106 633.1
D 13 169 76878 118.1 2031 2106 633.1

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