ASTROSAT CZTI

Data Quality Report

Orbit 20231129_A13_074T05_9000005958_level2

Creation date: 2023-11-30T13:08:24.733364
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/AS1A13_074T05_9000005958cztM0_level2.fits modeM0/AS1A13_074T05_9000005958cztM0_level2_quad_clean.evt
Size (bytes)106,940,160106,485,120
Size102.0 MB 101.6 MB
Events in quadrant A611,866597,278
Events in quadrant B618,978632,849
Events in quadrant C636,216617,850
Events in quadrant D533,412538,787

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02480
B02500
C02500
D02500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0461890
B0297550
C0263610
D0345420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0240
C0250
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1208912089.992555%
B121084273.526594%
C121021991.644356%
D121108617.109827%

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 17049 12123 0 0 0.00% 0.00%
B 17049 12140 0 0 0.00% 0.00%
C 17049 12128 0 0 0.00% 0.00%
D 17049 12124 0 0 0.00% 0.00%

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 29 501 8.33 159 149 42.3
A 7 110 496 8.21 159 149 42.3
A 15 236 490 8.07 159 149 42.3
B 2 9 555 11.34 163 155 35.3
B 2 8 477 9.13 163 155 35.3
B 3 17 451 8.39 163 155 35.3
C 3 202 510 7.77 168 156 45.6
C 1 81 503 7.62 168 156 45.6
C 1 80 485 7.22 168 156 45.6
D 6 231 401 5.97 153 139 43.9
D 10 63 391 5.74 153 139 43.9
D 7 3 385 5.6 153 139 43.9

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