ASTROSAT CZTI

Data Quality Report

Orbit 21076

Creation date: 2024-06-27T18:23:11.843307
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_075T05_9000003116_21076cztM0_level2.evt modeM0/AS1A05_075T05_9000003116_21076cztM0_level2_quad_clean.evt
Size (bytes)478,529,28069,477,120
Size456.4 MB 66.3 MB
Events in quadrant A3,207,618424,143
Events in quadrant B3,610,514430,560
Events in quadrant C3,227,752406,464
Events in quadrant D4,007,058390,938

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134562
B0147092
C0134852
D0161162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6471440.679957%
B6472761.174289%
C6472761.174289%
D64711081.668985%

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 7766 6472 0 0 0.00% 0.00%
B 7767 6473 9 9 0.12% 0.14%
C 7767 6473 0 0 0.00% 0.00%
D 7766 6472 58 58 0.75% 0.90%

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 8839 49.14 829 814 163.3
A 0 226 7165 38.89 829 814 163.3
A 3 137 6388 34.13 829 814 163.3
B 7 220 119357 765.21 833 813 154.9
B 0 219 102246 654.76 833 813 154.9
B 4 216 47736 302.89 833 813 154.9
C 14 238 126169 678.86 795 803 184.7
C 13 61 5582 25.88 795 803 184.7
C 9 54 2468 9.02 795 803 184.7
D 1 239 306149 1628.16 791 771 187.6
D 1 52 282980 1504.63 791 771 187.6
D 7 238 167451 888.67 791 771 187.6

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