ASTROSAT CZTI

Data Quality Report

Orbit 16399

Creation date: 2024-06-27T17:22:07.235403
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_069T02_9000002422_16399cztM0_level2.evt modeM0/AS1A05_069T02_9000002422_16399cztM0_level2_quad_clean.evt
Size (bytes)476,625,60079,153,920
Size454.5 MB 75.5 MB
Events in quadrant A3,378,097498,263
Events in quadrant B3,725,181512,477
Events in quadrant C3,426,505478,099
Events in quadrant D3,465,146456,208

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138413
B0151202
C0139582
D0145962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6474420.648749%
B6474771.189373%
C6474861.328390%
D64741432.208835%

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 7810 6476 3 3 0.04% 0.05%
B 7810 6476 8 8 0.10% 0.12%
C 7810 6476 0 0 0.00% 0.00%
D 7810 6476 97 97 1.24% 1.50%

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 15 174 64279 379.12 840 823 167.4
A 15 223 57364 337.81 840 823 167.4
A 15 239 25939 150.06 840 823 167.4
B 15 35 128562 804.8 850 834 158.7
B 4 173 76232 475.07 850 834 158.7
B 0 189 53504 331.87 850 834 158.7
C 3 233 149777 795.42 806 814 187.3
C 14 238 126978 673.68 806 814 187.3
C 10 169 6828 32.11 806 814 187.3
D 10 70 239474 1232.52 798 776 193.7
D 12 218 124410 638.39 798 776 193.7
D 13 168 42775 216.86 798 776 193.7

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