ASTROSAT CZTI

Data Quality Report

Orbit 09475

Creation date: 2024-06-27T15:46:36.882783
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_051T01_9000001346_09475cztM0_level2.evt modeM0/AS1A03_051T01_9000001346_09475cztM0_level2_quad_clean.evt
Size (bytes)20,511,3603,862,080
Size19.6 MB 3.7 MB
Events in quadrant A147,58321,327
Events in quadrant B169,76425,834
Events in quadrant C151,35924,424
Events in quadrant D128,39715,905

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01497214383
B01292912215
C01320812560
D01972019189

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098
B094
C085
D0108

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131125
B0133125
C0128118
D0131128

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27210.367647%
B35241.136364%
C31000.000000%
D23410.427350%

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 6195 477 0 0 0.00% 0.00%
B 6224 644 0 0 0.00% 0.00%
C 7296 556 0 0 0.00% 0.00%
D 6077 403 0 0 0.00% 0.00%

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 8 5 20244 2281.94 32 32 8.9
A 1 162 730 78.8 32 32 8.9
A 12 194 275 27.43 32 32 8.9
B 12 111 930 84.23 43 42 10.5
B 0 214 779 69.91 43 42 10.5
B 11 111 734 65.64 43 42 10.5
C 9 68 6435 614.08 36 36 10.4
C 14 234 895 82.43 36 36 10.4
C 8 128 352 30.33 36 36 10.4
D 8 195 16637 1994.32 27 26 8.3
D 1 52 6373 762.02 27 26 8.3
D 2 234 1008 117.9 27 26 8.3

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