ASTROSAT CZTI

Data Quality Report

Orbit 29356

Creation date: 2024-06-27T20:03:09.500435
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/AS1T03_279T01_9000004218_29356cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29356cztM0_level2_quad_clean.evt
Size (bytes)616,564,80091,958,400
Size588.0 MB 87.7 MB
Events in quadrant A3,137,381626,199
Events in quadrant B3,523,565624,337
Events in quadrant C3,447,148594,862
Events in quadrant D8,162,614524,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126261
B0139171
C0139281
D0284391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5934520.876306%
B59351562.628475%
C59351262.122999%
D5934160327.013819%

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 7179 5935 0 0 0.00% 0.00%
B 7180 5936 65 65 0.91% 1.10%
C 7180 5936 0 0 0.00% 0.00%
D 7179 5935 1365 1365 19.01% 23.00%

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 13 254 11366 65.67 810 795 161.0
A 0 13 7195 39.76 810 795 161.0
A 0 226 7070 38.98 810 795 161.0
B 10 245 217001 1471.29 788 772 147.0
B 5 172 128485 869.0 788 772 147.0
B 15 33 41390 276.38 788 772 147.0
C 3 233 252114 1401.96 773 780 179.3
C 14 238 132232 733.25 773 780 179.3
C 10 9 20879 112.11 773 780 179.3
D 1 52 3877975 22667.88 720 703 171.0
D 13 104 451157 2633.51 720 703 171.0
D 7 80 426058 2486.77 720 703 171.0

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