ASTROSAT CZTI

Data Quality Report

Orbit 19499

Creation date: 2024-06-27T18:03:30.574143
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/AS1A05_062T01_9000002892_19499cztM0_level2.evt modeM0/AS1A05_062T01_9000002892_19499cztM0_level2_quad_clean.evt
Size (bytes)296,256,96038,027,520
Size282.5 MB 36.3 MB
Events in quadrant A1,837,685228,322
Events in quadrant B2,026,866227,941
Events in quadrant C2,364,719216,607
Events in quadrant D2,487,046212,990

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077341
B083131
C093991
D098181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A375250.133262%
B3753290.772715%
C3753731.945111%
D3753631.678657%

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 3752 3752 0 0 0.00% 0.00%
B 3753 3753 15 15 0.40% 0.40%
C 3753 3753 31 31 0.83% 0.83%
D 3753 3753 53 53 1.41% 1.41%

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 11 47 7317 70.89 474 465 96.7
A 13 254 5410 51.16 474 465 96.7
A 0 226 4138 38.0 474 465 96.7
B 7 220 65525 730.35 470 458 89.1
B 0 244 22973 252.72 470 458 89.1
B 4 80 18572 203.32 470 458 89.1
C 7 247 261782 2514.05 446 450 103.9
C 5 112 157531 1511.14 446 450 103.9
C 3 233 88509 847.14 446 450 103.9
D 1 52 448920 3982.21 457 444 112.6
D 7 238 189185 1675.91 457 444 112.6
D 12 218 82063 724.73 457 444 112.6

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