ASTROSAT CZTI

Data Quality Report

Orbit 14019

Creation date: 2024-06-27T16:49:13.244846
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/AS1G08_064T01_9000002070_14019cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14019cztM0_level2_quad_clean.evt
Size (bytes)886,478,400144,578,880
Size845.4 MB 137.9 MB
Events in quadrant A6,126,675884,442
Events in quadrant B6,539,902882,153
Events in quadrant C6,041,489888,031
Events in quadrant D7,270,410836,907

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263824
B0277443
C0262563
D0302763

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128282271.769567%
B128283692.876520%
C128281421.106954%
D128283802.962270%

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 14544 12832 0 0 0.00% 0.00%
B 14544 12832 110 110 0.76% 0.86%
C 14543 12831 2 2 0.01% 0.02%
D 14543 12831 181 181 1.24% 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 8 15 165278 527.56 1528 1488 310.5
A 12 189 32380 99.5 1528 1488 310.5
A 1 162 31927 98.04 1528 1488 310.5
B 10 16 285508 972.75 1515 1473 292.0
B 3 64 106184 358.61 1515 1473 292.0
B 0 156 80326 270.05 1515 1473 292.0
C 3 233 216696 622.21 1490 1498 345.9
C 14 234 15535 40.59 1490 1498 345.9
C 13 61 10683 26.56 1490 1498 345.9
D 15 0 535919 1448.06 1464 1423 369.1
D 13 189 362471 978.15 1464 1423 369.1
D 1 52 231985 624.64 1464 1423 369.1

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