ASTROSAT CZTI

Data Quality Report

Orbit 14603

Creation date: 2024-06-27T16:57:22.210270
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/AS1G08_055T02_9000002148_14603cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14603cztM0_level2_quad_clean.evt
Size (bytes)725,875,20097,401,600
Size692.2 MB 92.9 MB
Events in quadrant A10,045,424599,658
Events in quadrant B3,489,955647,020
Events in quadrant C3,995,602636,912
Events in quadrant D4,017,179615,861

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0343413
B0145892
C0165052
D0162462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6456144422.366791%
B64561041.610905%
C6456841.301115%
D64562804.337051%

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 8932 6457 486 486 5.44% 7.53%
B 8932 6457 1 1 0.01% 0.02%
C 8932 6458 0 0 0.00% 0.00%
D 8932 6458 163 163 1.82% 2.52%

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 0 23 5999754 35684.63 836 822 168.1
A 0 226 364474 2163.18 836 822 168.1
A 8 15 190661 1129.26 836 822 168.1
B 12 111 19292 111.01 877 855 166.1
B 11 111 16509 94.26 877 855 166.1
B 0 189 14928 84.74 877 855 166.1
C 3 233 616319 3072.74 867 875 200.3
C 13 61 6003 25.6 867 875 200.3
C 10 22 2326 7.24 867 875 200.3
D 10 199 598868 2984.86 854 837 200.4
D 2 152 71627 353.32 854 837 200.4
D 12 110 48173 236.26 854 837 200.4

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