ASTROSAT CZTI

Data Quality Report

Orbit 07188

Creation date: 2024-06-27T15:16:50.442611
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_176T01_9000000980_07188cztM0_level2.evt modeM0/AS1A02_176T01_9000000980_07188cztM0_level2_quad_clean.evt
Size (bytes)462,323,520121,849,920
Size440.9 MB 116.2 MB
Events in quadrant A3,167,728813,312
Events in quadrant B3,327,678829,515
Events in quadrant C2,970,065807,165
Events in quadrant D4,072,843765,481

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142243
B0145152
C0137912
D0169752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6811610.895610%
B6811640.939656%
C6811180.264278%
D68111532.246366%

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 7756 6811 23 23 0.30% 0.34%
B 7756 6811 3 3 0.04% 0.04%
C 7756 6812 0 0 0.00% 0.00%
D 7756 6812 88 88 1.13% 1.29%

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 13 248 84303 523.1 781 765 159.7
A 14 238 41258 253.56 781 765 159.7
A 13 14 10563 61.35 781 765 159.7
B 0 214 98842 643.3 793 774 152.4
B 4 81 70381 456.6 793 774 152.4
B 0 219 29710 189.81 793 774 152.4
C 8 128 10168 53.31 754 755 176.6
C 8 112 6150 30.56 754 755 176.6
C 13 61 6092 30.23 754 755 176.6
D 8 195 587703 3213.75 746 720 182.6
D 2 216 284119 1551.62 746 720 182.6
D 14 34 247457 1350.89 746 720 182.6

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