ASTROSAT CZTI

Data Quality Report

Orbit 14100

Creation date: 2024-06-27T16:50:21.967756
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_022T01_9000002078_14100cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14100cztM0_level2_quad_clean.evt
Size (bytes)504,103,680102,435,840
Size480.8 MB 97.7 MB
Events in quadrant A3,303,011693,643
Events in quadrant B4,819,819659,809
Events in quadrant C3,216,598655,975
Events in quadrant D3,481,179634,490

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138563
B0187592
C0137562
D0149062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6577480.729816%
B65775157.830318%
C6577270.410522%
D6577320.486544%

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 7593 6579 3 3 0.04% 0.05%
B 7593 6579 243 243 3.20% 3.69%
C 7593 6579 10 10 0.13% 0.15%
D 7593 6579 10 10 0.13% 0.15%

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 15 222 52448 312.1 816 797 165.5
A 12 189 49249 292.77 816 797 165.5
A 8 15 41054 243.25 816 797 165.5
B 10 16 1461060 9781.79 789 771 149.3
B 0 189 151292 1008.27 789 771 149.3
B 0 229 32204 210.55 789 771 149.3
C 3 233 127725 709.01 779 785 179.0
C 0 207 47171 259.09 779 785 179.0
C 13 61 5782 27.91 779 785 179.0
D 1 52 249899 1307.94 770 750 190.5
D 15 0 97210 506.38 770 750 190.5
D 2 152 67257 349.14 770 750 190.5

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