ASTROSAT CZTI

Data Quality Report

Orbit 11190

Creation date: 2024-06-27T16:09:32.402451
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/AS1A04_171T01_9000001634_11190cztM0_level2.evt modeM0/AS1A04_171T01_9000001634_11190cztM0_level2_quad_clean.evt
Size (bytes)498,196,80082,463,040
Size475.1 MB 78.6 MB
Events in quadrant A3,713,017512,915
Events in quadrant B3,471,544530,382
Events in quadrant C3,017,685521,412
Events in quadrant D4,448,230482,559

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149803
B0142682
C0132142
D0175282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0161
C0161
D0171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64421131.754114%
B64421512.343993%
C6442610.946911%
D64422914.517231%

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 7512 6443 16 16 0.21% 0.25%
B 7512 6443 30 30 0.40% 0.47%
C 7512 6443 0 0 0.00% 0.00%
D 7512 6443 220 220 2.93% 3.41%

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 5 394228 2507.53 772 755 156.9
A 8 15 275602 1751.55 772 755 156.9
A 14 238 63249 398.26 772 755 156.9
B 4 239 282433 1881.86 784 764 149.7
B 0 187 60099 396.42 784 764 149.7
B 0 229 19999 128.51 784 764 149.7
C 0 10 11120 57.71 771 775 179.3
C 13 61 5857 28.35 771 775 179.3
C 3 202 1877 6.15 771 775 179.3
D 12 157 554754 3084.68 746 726 179.6
D 8 195 526319 2926.36 746 726 179.6
D 2 14 241387 1339.93 746 726 179.6

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