ASTROSAT CZTI

Data Quality Report

Orbit 16340

Creation date: 2024-06-27T17:21:10.524018
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_101T01_9000002412_16340cztM0_level2.evt modeM0/AS1A05_101T01_9000002412_16340cztM0_level2_quad_clean.evt
Size (bytes)482,699,52086,892,480
Size460.3 MB 82.9 MB
Events in quadrant A3,209,871543,793
Events in quadrant B4,240,590553,260
Events in quadrant C3,397,679552,388
Events in quadrant D3,333,769533,141

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134093
B0167332
C0138312
D0139282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6427310.482340%
B64272323.609771%
C6427711.104714%
D6427400.622374%

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 7738 6429 0 0 0.00% 0.00%
B 7738 6429 136 136 1.76% 2.12%
C 7738 6429 0 0 0.00% 0.00%
D 7738 6429 13 13 0.17% 0.20%

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 7435 40.01 832 817 165.4
A 0 226 7420 39.92 832 817 165.4
A 12 194 6054 31.66 832 817 165.4
B 3 112 688522 4462.68 834 816 154.1
B 15 35 118768 765.42 834 816 154.1
B 4 173 50541 322.68 834 816 154.1
C 14 238 131417 696.64 823 828 187.5
C 3 233 50713 266.12 823 828 187.5
C 0 207 9279 45.08 823 828 187.5
D 12 218 123881 628.98 821 798 195.7
D 1 52 65866 332.51 821 798 195.7
D 10 70 30574 152.16 821 798 195.7

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