ASTROSAT CZTI

Data Quality Report

Orbit 10129

Creation date: 2024-06-27T15:55:21.022591
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/AS1A03_079T02_9000001458_10129cztM0_level2.evt modeM0/AS1A03_079T02_9000001458_10129cztM0_level2_quad_clean.evt
Size (bytes)460,255,68089,881,920
Size438.9 MB 85.7 MB
Events in quadrant A3,248,177570,457
Events in quadrant B3,330,618575,917
Events in quadrant C3,008,675570,740
Events in quadrant D3,907,943549,560

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139213
B0139422
C0133092
D0154942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6528761.164216%
B6528620.949755%
C6528320.490196%
D65281191.822917%

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 7688 6528 19 19 0.25% 0.29%
B 7688 6528 4 4 0.05% 0.06%
C 7688 6529 0 0 0.00% 0.00%
D 7688 6528 68 68 0.88% 1.04%

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 15 174 81801 503.93 800 784 160.8
A 13 248 79408 489.05 800 784 160.8
A 3 1 7553 42.1 800 784 160.8
B 0 214 64113 418.59 796 777 151.3
B 0 219 56434 367.84 796 777 151.3
B 4 239 36111 233.52 796 777 151.3
C 14 67 9584 50.12 767 772 175.8
C 13 61 5850 28.88 767 772 175.8
C 3 254 3421 15.07 767 772 175.8
D 8 195 339374 1698.75 760 746 199.3
D 4 95 135136 674.18 760 746 199.3
D 2 136 112517 560.71 760 746 199.3

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