ASTROSAT CZTI

Data Quality Report

Orbit 39108

Creation date: 2024-06-27T22:00:31.185306
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/AS1T05_067T01_9000005432_39108cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39108cztM0_level2_quad_clean.evt
Size (bytes)375,016,32093,208,320
Size357.6 MB 88.9 MB
Events in quadrant A3,739,639625,713
Events in quadrant B2,614,131644,345
Events in quadrant C3,334,311602,700
Events in quadrant D3,755,745555,757

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149563
B0115672
C0133302
D0147732

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5632340.603693%
B5632430.763494%
C5632851.509233%
D56321322.343750%

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 7215 5633 8 8 0.11% 0.14%
B 7215 5633 21 21 0.29% 0.37%
C 7215 5633 67 67 0.93% 1.19%
D 7215 5633 100 100 1.39% 1.78%

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 15 223 756205 5897.79 629 617 128.1
A 10 83 426465 3323.98 629 617 128.1
A 7 3 68928 533.21 629 617 128.1
B 5 172 103917 847.45 628 610 121.9
B 0 230 27457 220.23 628 610 121.9
B 12 111 15750 124.2 628 610 121.9
C 15 208 380347 2640.55 613 616 143.8
C 9 187 309202 2145.82 613 616 143.8
C 15 214 240007 1664.66 613 616 143.8
D 12 235 421459 2804.3 609 591 150.1
D 2 249 285439 1897.98 609 591 150.1
D 7 223 179357 1191.14 609 591 150.1

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