ASTROSAT CZTI

Data Quality Report

Orbit 04110

Creation date: 2024-06-27T14:37:33.611764
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_191T01_9000000524_04110cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04110cztM0_level2_quad_clean.evt
Size (bytes)315,417,60067,432,320
Size300.8 MB 64.3 MB
Events in quadrant A2,521,602446,274
Events in quadrant B2,215,516448,825
Events in quadrant C2,438,607444,691
Events in quadrant D2,113,110429,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100311
B091641
C098171
D089191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3872651.678719%
B3872982.530992%
C3872832.143595%
D3872611.575413%

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 3872 3872 85 85 2.20% 2.20%
B 3872 3872 69 69 1.78% 1.78%
C 3872 3872 50 50 1.29% 1.29%
D 3872 3872 47 47 1.21% 1.21%

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 0 199 607191 6289.7 476 468 96.5
A 0 226 58109 597.55 476 468 96.5
A 0 50 17000 171.38 476 468 96.5
B 10 16 320855 3528.22 482 472 90.8
B 15 204 18297 196.3 482 472 90.8
B 12 111 7644 78.98 482 472 90.8
C 9 144 589584 5407.24 470 477 108.9
C 4 254 8484 73.49 470 477 108.9
C 13 61 3795 30.45 470 477 108.9
D 13 53 126540 1112.12 468 456 113.4
D 10 172 93112 817.27 468 456 113.4
D 12 233 38832 338.49 468 456 113.4

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