ASTROSAT CZTI

Data Quality Report

Orbit 20361

Creation date: 2024-06-27T18:14:24.532071
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/AS1A05_163T01_9000003010_20361cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20361cztM0_level2_quad_clean.evt
Size (bytes)530,144,64098,879,040
Size505.6 MB 94.3 MB
Events in quadrant A3,345,069642,098
Events in quadrant B3,246,220655,217
Events in quadrant C3,244,863639,091
Events in quadrant D5,773,761599,949

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145292
B0139902
C0139902
D0218474

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6573650.988894%
B6573540.821543%
C65731001.521375%
D657275011.412051%

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 7633 6573 0 0 0.00% 0.00%
B 7633 6574 0 0 0.00% 0.00%
C 7633 6573 0 0 0.00% 0.00%
D 7632 6572 615 615 8.06% 9.36%

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 14 111 190905 1152.36 819 801 165.0
A 0 226 6919 37.09 819 801 165.0
A 3 137 6888 36.9 819 801 165.0
B 15 201 25239 156.26 816 797 156.4
B 12 111 19334 118.51 816 797 156.4
B 11 111 17249 105.18 816 797 156.4
C 14 238 123802 655.83 800 806 187.5
C 13 61 5458 24.8 800 806 187.5
C 3 233 2395 8.47 800 806 187.5
D 1 52 2366539 12668.3 775 754 186.7
D 7 238 422320 2257.4 775 754 186.7
D 2 153 41399 217.64 775 754 186.7

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