ASTROSAT CZTI

Data Quality Report

Orbit 45619

Creation date: 2024-06-27T23:14:16.947330
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_071T08_9000006114_45619cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45619cztM0_level2_quad_clean.evt
Size (bytes)551,733,120111,994,560
Size526.2 MB 106.8 MB
Events in quadrant A5,811,909775,705
Events in quadrant B4,535,826740,054
Events in quadrant C3,600,087759,372
Events in quadrant D5,977,424667,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210561
B0176311
C0150011
D0221181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64281953.033603%
B64286249.707530%
C64281492.317984%
D64285328.276291%

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 7628 6429 19 19 0.25% 0.30%
B 7628 6429 411 411 5.39% 6.39%
C 7628 6429 97 97 1.27% 1.51%
D 7628 6429 408 408 5.35% 6.35%

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 2747883 17438.95 769 753 157.5
A 10 248 42328 263.92 769 753 157.5
A 13 248 26514 163.53 769 753 157.5
B 5 172 946221 6757.72 730 712 139.9
B 15 201 427821 3052.62 730 712 139.9
B 4 170 102749 729.28 730 712 139.9
C 12 2 352617 2035.66 744 750 172.9
C 14 254 260932 1505.23 744 750 172.9
C 0 207 55214 315.09 744 750 172.9
D 11 241 1920497 10398.82 738 716 184.6
D 13 249 562709 3044.13 738 716 184.6
D 1 52 298327 1612.06 738 716 184.6

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