ASTROSAT CZTI

Data Quality Report

Orbit 04114

Creation date: 2024-06-27T14:37:37.033948
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/AS1G05_192T01_9000000526_04114cztM0_level2.evt modeM0/AS1G05_192T01_9000000526_04114cztM0_level2_quad_clean.evt
Size (bytes)396,737,28072,734,400
Size378.4 MB 69.4 MB
Events in quadrant A2,882,503442,042
Events in quadrant B3,061,104442,719
Events in quadrant C2,809,915440,255
Events in quadrant D2,824,111428,966

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133381
B0137481
C0132381
D0135301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6421270.420495%
B6421390.607382%
C6421400.622956%
D6421350.545086%

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 7255 6421 2 2 0.03% 0.03%
B 7255 6420 4 4 0.06% 0.06%
C 7256 6421 12 12 0.17% 0.19%
D 7255 6421 27 27 0.37% 0.42%

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 0 50 69675 475.57 710 694 145.0
A 0 199 63699 434.37 710 694 145.0
A 0 226 12612 82.16 710 694 145.0
B 14 167 143449 1020.65 723 706 139.9
B 15 204 80085 567.58 723 706 139.9
B 0 183 14862 101.22 723 706 139.9
C 9 144 57632 349.17 694 697 163.1
C 4 254 18259 107.7 694 697 163.1
C 10 65 17822 105.02 694 697 163.1
D 10 172 137675 823.17 686 665 166.4
D 13 239 34873 205.52 686 665 166.4
D 2 14 31379 184.53 686 665 166.4

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