ASTROSAT CZTI

Data Quality Report

Orbit 03496

Creation date: 2024-06-27T14:29:44.937725
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/AS1G05_211T01_9000000464_03496cztM0_level2.evt modeM0/AS1G05_211T01_9000000464_03496cztM0_level2_quad_clean.evt
Size (bytes)1,058,244,480131,739,840
Size1009.2 MB 125.6 MB
Events in quadrant A7,045,941778,051
Events in quadrant B7,290,019780,053
Events in quadrant C10,862,323731,652
Events in quadrant D5,930,434759,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305294
B0304123
C0420163
D0283625

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02800
B02800
C02800
D02800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A135955053.714601%
B135954263.133505%
C13595173612.769401%
D135942681.971458%

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 14905 13595 101 101 0.68% 0.74%
B 14905 13595 19 19 0.13% 0.14%
C 14905 13596 1311 1311 8.80% 9.64%
D 14905 13596 29 29 0.19% 0.21%

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 0 50 956506 3013.49 1547 1512 316.9
A 8 15 39269 119.14 1547 1512 316.9
A 0 118 38414 116.44 1547 1512 316.9
B 15 204 804208 2605.98 1574 1536 308.0
B 4 81 184154 592.89 1574 1536 308.0
B 4 200 104509 334.32 1574 1536 308.0
C 1 192 4797527 14287.84 1435 1440 335.7
C 7 220 281295 833.71 1435 1440 335.7
C 15 208 77653 227.04 1435 1440 335.7
D 13 223 94154 252.27 1513 1465 367.4
D 13 239 29738 76.95 1513 1465 367.4
D 5 233 23108 58.91 1513 1465 367.4

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
Veto Counter