ASTROSAT CZTI

Data Quality Report

Orbit 14689

Creation date: 2024-06-27T16:58:30.120110
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/AS1A04_011T07_9000002172_14689cztM0_level2.evt modeM0/AS1A04_011T07_9000002172_14689cztM0_level2_quad_clean.evt
Size (bytes)498,173,76099,192,960
Size475.1 MB 94.6 MB
Events in quadrant A3,599,178651,834
Events in quadrant B3,626,903642,336
Events in quadrant C4,007,518631,031
Events in quadrant D3,408,674621,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149313
B0150832
C0164092
D0143792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6564851.294942%
B6564901.371115%
C6564821.249238%
D6564781.188300%

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 8920 6565 3 3 0.03% 0.05%
B 8920 6565 2 2 0.02% 0.03%
C 8920 6565 0 0 0.00% 0.00%
D 8920 6565 12 12 0.13% 0.18%

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 8 15 103153 575.81 887 869 177.6
A 12 189 59471 329.9 887 869 177.6
A 3 1 19455 104.63 887 869 177.6
B 10 16 110117 663.97 868 848 164.6
B 4 80 65784 394.58 868 848 164.6
B 0 205 28170 166.02 868 848 164.6
C 3 233 706811 3627.14 846 853 194.6
C 13 61 6220 27.58 846 853 194.6
C 3 234 2895 10.49 846 853 194.6
D 12 110 78026 339.74 849 834 227.2
D 2 234 39309 169.34 849 834 227.2
D 2 120 25462 108.39 849 834 227.2

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