ASTROSAT CZTI

Data Quality Report

Orbit 05542

Creation date: 2024-06-27T14:56:30.415016
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/AS1G06_084T01_9000000710_05542cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05542cztM0_level2_quad_clean.evt
Size (bytes)432,319,68081,198,720
Size412.3 MB 77.4 MB
Events in quadrant A2,938,524508,836
Events in quadrant B3,294,722513,523
Events in quadrant C2,968,477516,827
Events in quadrant D3,480,496497,788

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01259623
B0135729
C01267422
D01422017

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01242
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6037771.275468%
B6043901.489326%
C6037520.861355%
D60421322.184707%

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 7257 6048 0 0 0.00% 0.00%
B 7257 6048 8 8 0.11% 0.13%
C 7257 6048 1 1 0.01% 0.02%
D 7257 6048 67 67 0.92% 1.11%

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 12 194 7624 44.14 763 747 155.8
A 0 226 7512 43.42 763 747 155.8
A 3 1 2815 13.27 763 747 155.8
B 15 204 207528 1401.51 766 749 147.5
B 4 48 57951 387.7 766 749 147.5
B 11 51 27902 184.04 766 749 147.5
C 9 16 46579 271.07 734 740 169.1
C 1 16 38065 220.72 734 740 169.1
C 1 241 15357 86.44 734 740 169.1
D 2 33 358466 1974.36 741 717 181.2
D 2 152 161062 884.92 741 717 181.2
D 2 136 50549 275.01 741 717 181.2

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