ASTROSAT CZTI

Data Quality Report

Orbit 07760

Creation date: 2024-06-27T15:23:39.103511
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/AS1A02_132T01_9000001068_07760cztM0_level2.evt modeM0/AS1A02_132T01_9000001068_07760cztM0_level2_quad_clean.evt
Size (bytes)161,956,80043,827,840
Size154.5 MB 41.8 MB
Events in quadrant A1,141,661292,039
Events in quadrant B1,195,345296,424
Events in quadrant C1,135,534296,811
Events in quadrant D1,276,599278,819

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047852
B049121
C047781
D052461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2260873.849558%
B2260763.362832%
C2260482.123894%
D2260823.628319%

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 3195 2261 0 0 0.00% 0.00%
B 3195 2261 0 0 0.00% 0.00%
C 3195 2262 0 0 0.00% 0.00%
D 3195 2261 11 11 0.34% 0.49%

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 12 194 2739 39.04 295 287 62.8
A 0 226 2659 37.77 295 287 62.8
A 3 1 2367 33.12 295 287 62.8
B 4 173 31119 519.49 295 287 59.4
B 12 111 5867 94.02 295 287 59.4
B 0 213 4885 77.47 295 287 59.4
C 13 61 2224 27.82 290 292 69.4
C 8 222 2083 25.79 290 292 69.4
C 12 4 847 7.99 290 292 69.4
D 1 52 118563 1604.63 289 279 73.7
D 2 152 53244 718.52 289 279 73.7
D 2 14 7292 95.14 289 279 73.7

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