ASTROSAT CZTI

Data Quality Report

Orbit 42473

Creation date: 2024-06-27T22:40:35.681382
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/AS1C07_001T10_9000005806_42473cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42473cztM0_level2_quad_clean.evt
Size (bytes)360,892,80087,909,120
Size344.2 MB 83.8 MB
Events in quadrant A3,025,218598,453
Events in quadrant B2,330,689609,670
Events in quadrant C2,371,851578,649
Events in quadrant D5,234,020517,241

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119783
B0104472
C0102632
D0190782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5106721.410106%
B5106110.215433%
C510640.078339%
D51063476.795926%

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 7079 5107 63 63 0.89% 1.23%
B 7079 5107 3 3 0.04% 0.06%
C 7079 5107 0 0 0.00% 0.00%
D 7079 5107 345 345 4.87% 6.76%

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 558685 4814.03 569 559 115.9
A 13 248 206717 1778.18 569 559 115.9
A 12 189 46778 398.65 569 559 115.9
B 5 255 55917 524.24 560 547 105.6
B 0 186 20717 190.97 560 547 105.6
B 15 35 17820 163.54 560 547 105.6
C 15 214 216610 1712.67 546 550 126.2
C 12 249 7621 56.05 546 550 126.2
C 9 54 6362 46.07 546 550 126.2
D 2 16 2017358 15376.57 541 527 131.2
D 1 52 587916 4478.33 541 527 131.2
D 12 6 133418 1013.18 541 527 131.2

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