ASTROSAT CZTI

Data Quality Report

Orbit 33370

Creation date: 2024-06-27T20:48:06.540073
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/AS1A10_064T02_9000004788_33370cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33370cztM0_level2_quad_clean.evt
Size (bytes)561,905,28058,858,560
Size535.9 MB 56.1 MB
Events in quadrant A2,684,875360,367
Events in quadrant B3,843,407352,812
Events in quadrant C3,169,313354,376
Events in quadrant D6,929,312311,001

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116193
B0150262
C0126052
D0247602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A577030.051993%
B57702524.367418%
C5770410.710572%
D577088315.303293%

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 7114 5771 0 0 0.00% 0.00%
B 7114 5771 190 190 2.67% 3.29%
C 7114 5771 28 28 0.39% 0.49%
D 7114 5771 800 800 11.25% 13.86%

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 7 16 12237 83.2 690 676 139.0
A 13 254 9063 60.36 690 676 139.0
A 3 137 6757 43.76 690 676 139.0
B 5 172 680555 5267.56 675 658 129.1
B 0 219 311139 2405.48 675 658 129.1
B 15 32 33520 254.6 675 658 129.1
C 15 214 251107 1627.76 666 672 153.9
C 0 10 132560 857.24 666 672 153.9
C 15 208 75501 486.37 666 672 153.9
D 8 195 1395360 8912.29 636 618 156.5
D 14 173 1160316 7410.38 636 618 156.5
D 1 52 928295 5927.78 636 618 156.5

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