ASTROSAT CZTI

Data Quality Report

Orbit 47309

Creation date: 2024-06-27T21:23:29.990682
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/AS1A13_093T12_9000006314_47309cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47309cztM0_level2_quad_clean.evt
Size (bytes)704,393,280102,784,320
Size671.8 MB 98.0 MB
Events in quadrant A9,469,381599,837
Events in quadrant B4,135,380752,227
Events in quadrant C3,811,482745,706
Events in quadrant D8,096,656509,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0335071
B0173411
C0164781
D0292581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7234170423.555433%
B72344456.151507%
C72342433.359137%
D7234215129.734587%

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 7544 7235 878 878 11.64% 12.14%
B 7544 7235 67 67 0.89% 0.93%
C 7544 7235 70 70 0.93% 0.97%
D 7544 7235 1767 1767 23.42% 24.42%

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 10 83 3593342 22498.28 765 747 159.7
A 15 235 1922644 12035.7 765 747 159.7
A 9 191 497583 3111.39 765 747 159.7
B 0 200 468292 2940.22 805 777 159.0
B 4 171 100155 624.99 805 777 159.0
B 5 172 93470 582.95 805 777 159.0
C 3 233 305913 1614.42 801 803 189.0
C 0 207 193758 1020.98 801 803 189.0
C 14 254 154665 814.13 801 803 189.0
D 12 2 5357044 31490.37 674 650 170.1
D 2 234 34548 199.29 674 650 170.1
D 7 38 26503 151.99 674 650 170.1

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