ASTROSAT CZTI

Data Quality Report

Orbit 22249

Creation date: 2024-06-27T18:38:31.865240
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/AS1A07_018T02_9000003292_22249cztM0_level2.evt modeM0/AS1A07_018T02_9000003292_22249cztM0_level2_quad_clean.evt
Size (bytes)479,479,68092,482,560
Size457.3 MB 88.2 MB
Events in quadrant A3,334,486600,152
Events in quadrant B3,406,207613,536
Events in quadrant C3,367,980577,309
Events in quadrant D3,973,289558,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136632
B0139202
C0138172
D0157792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462831.284432%
B64621201.857010%
C64621241.918911%
D64621792.770040%

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 7643 6463 0 0 0.00% 0.00%
B 7643 6463 2 2 0.03% 0.03%
C 7643 6463 4 4 0.05% 0.06%
D 7643 6463 131 131 1.71% 2.03%

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 9630 50.98 865 850 172.2
A 0 226 7505 38.64 865 850 172.2
A 3 137 7300 37.45 865 850 172.2
B 4 173 21833 129.02 860 842 162.7
B 12 111 19743 116.17 860 842 162.7
B 11 111 17693 103.57 860 842 162.7
C 14 238 131174 687.77 817 825 189.5
C 10 22 43224 223.71 817 825 189.5
C 0 10 10285 49.91 817 825 189.5
D 1 52 696582 3472.85 828 806 200.3
D 2 136 88322 436.82 828 806 200.3
D 13 172 42613 208.67 828 806 200.3

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