ASTROSAT CZTI

Data Quality Report

Orbit 06762

Creation date: 2024-06-27T15:11:24.171852
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_006T01_9000000934_06762cztM0_level2.evt modeM0/AS1A02_006T01_9000000934_06762cztM0_level2_quad_clean.evt
Size (bytes)561,908,16094,386,240
Size535.9 MB 90.0 MB
Events in quadrant A3,245,932605,721
Events in quadrant B3,303,281611,732
Events in quadrant C3,166,461597,556
Events in quadrant D6,809,063537,461

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149133
B0148872
C0147802
D0252302

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7267310.426586%
B7267420.577955%
C7267190.261456%
D72676789.329847%

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 9042 7269 1 1 0.01% 0.01%
B 9042 7269 0 0 0.00% 0.00%
C 9042 7269 2 2 0.02% 0.03%
D 9042 7269 540 540 5.97% 7.43%

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 8 15 40659 236.12 822 806 168.8
A 14 111 35416 205.05 822 806 168.8
A 0 226 7768 41.25 822 806 168.8
B 4 81 23336 140.7 835 815 160.1
B 0 214 16577 98.47 835 815 160.1
B 12 111 15914 94.33 835 815 160.1
C 12 4 12368 61.55 803 804 187.9
C 9 16 9611 46.87 803 804 187.9
C 13 61 6355 29.54 803 804 187.9
D 12 220 2466127 13066.91 765 738 188.7
D 2 216 705897 3737.44 765 738 188.7
D 8 195 306040 1618.14 765 738 188.7

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