ASTROSAT CZTI

Data Quality Report

Orbit 46625

Creation date: 2024-06-27T23:25:33.917587
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_080T02_9000006242_46625cztM0_level2.fits modeM0/AS1A13_080T02_9000006242_46625cztM0_level2_quad_clean.evt
Size (bytes)661,838,400114,166,080
Size631.2 MB 108.9 MB
Events in quadrant A6,718,885807,727
Events in quadrant B4,412,545748,582
Events in quadrant C3,500,003779,620
Events in quadrant D9,282,072594,527

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244580
B0187211
C0164410
D0327490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7558540.714475%
B75585497.263826%
C75581191.574491%
D7558169722.453030%

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 7558 7558 0 0 0.00% 0.00%
B 7558 7558 384 384 5.08% 5.08%
C 7558 7558 74 74 0.98% 0.98%
D 7558 7558 1657 1657 21.92% 21.92%

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 3339646 20038.21 796 778 166.6
A 0 247 213862 1278.82 796 778 166.6
A 9 191 54917 324.92 796 778 166.6
B 15 201 1278068 8567.22 755 732 149.1
B 5 32 55437 366.91 755 732 149.1
B 0 190 29417 192.39 755 732 149.1
C 9 54 408528 2223.53 779 784 183.4
C 14 254 21617 113.61 779 784 183.4
C 0 207 12285 62.72 779 784 183.4
D 12 233 5077912 27192.66 730 706 186.7
D 1 52 544394 2911.9 730 706 186.7
D 13 249 201235 1074.0 730 706 186.7

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