ASTROSAT CZTI

Data Quality Report

Orbit 06004

Creation date: 2024-06-27T15:01:40.707297
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_086T01_9000000774_06004cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06004cztM0_level2_quad_clean.evt
Size (bytes)420,851,520120,772,800
Size401.4 MB 115.2 MB
Events in quadrant A3,071,934811,996
Events in quadrant B3,260,222827,532
Events in quadrant C2,926,086808,104
Events in quadrant D3,053,440765,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01304
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01352419
B01418439
C01320644
D01385833

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6384430.673559%
B6376450.705772%
C6375380.596078%
D6377981.536773%

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 7546 6392 11 11 0.15% 0.17%
B 7546 6392 9 9 0.12% 0.14%
C 7546 6391 1 1 0.01% 0.02%
D 7546 6392 47 47 0.62% 0.74%

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 6 88457 576.21 747 730 152.2
A 15 234 51015 330.28 747 730 152.2
A 8 5 23486 149.47 747 730 152.2
B 15 204 80005 558.94 754 737 141.8
B 0 214 75868 529.77 754 737 141.8
B 0 219 74132 517.53 754 737 141.8
C 1 16 26935 155.45 735 738 168.5
C 9 54 19333 110.34 735 738 168.5
C 13 61 6018 31.33 735 738 168.5
D 2 63 138596 778.63 728 705 177.1
D 2 14 29764 164.09 728 705 177.1
D 13 61 29217 161.0 728 705 177.1

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