ASTROSAT CZTI

Data Quality Report

Orbit 40334

Creation date: 2024-06-27T22:15:03.111303
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/AS1A12_056T02_9000005538_40334cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40334cztM0_level2_quad_clean.evt
Size (bytes)367,416,00098,346,240
Size350.4 MB 93.8 MB
Events in quadrant A3,283,387667,142
Events in quadrant B3,376,037674,148
Events in quadrant C2,856,885652,152
Events in quadrant D3,635,175580,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133193
B0139752
C0119712
D0149972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5769751.300052%
B57691402.426764%
C5769200.346681%
D57692364.090830%

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 9205 5771 65 65 0.71% 1.13%
B 9205 5771 98 98 1.06% 1.70%
C 9205 5771 17 17 0.18% 0.29%
D 9205 5771 235 235 2.55% 4.07%

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 10 83 491473 3715.09 643 633 132.1
A 13 248 251976 1902.37 643 633 132.1
A 6 10 24695 182.12 643 633 132.1
B 4 171 456052 3633.0 638 620 125.4
B 5 255 215637 1715.2 638 620 125.4
B 4 170 110832 879.17 638 620 125.4
C 15 214 264115 1764.53 634 638 149.3
C 14 254 106721 710.45 634 638 149.3
C 0 10 12407 78.82 634 638 149.3
D 12 227 476824 3126.39 619 602 152.3
D 1 47 377117 2471.82 619 602 152.3
D 12 128 135807 887.62 619 602 152.3

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