ASTROSAT CZTI

Data Quality Report

Orbit 07297

Creation date: 2024-06-27T15:18:03.041768
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/AS1G06_137T01_9000001000_07297cztM0_level2.evt modeM0/AS1G06_137T01_9000001000_07297cztM0_level2_quad_clean.evt
Size (bytes)468,832,32093,061,440
Size447.1 MB 88.8 MB
Events in quadrant A4,133,905538,013
Events in quadrant B3,242,649607,832
Events in quadrant C3,164,585603,761
Events in quadrant D3,186,649585,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169452
B0145001
C0144421
D0147571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69213374.869239%
B6921741.069210%
C6921480.693541%
D6921530.765785%

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 7806 6921 283 283 3.63% 4.09%
B 7806 6922 0 0 0.00% 0.00%
C 7806 6922 0 0 0.00% 0.00%
D 7806 6922 14 14 0.18% 0.20%

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 15 234 829944 5277.47 772 756 157.1
A 8 15 298346 1894.05 772 756 157.1
A 15 239 31648 196.62 772 756 157.1
B 0 214 18028 108.69 828 811 158.4
B 12 111 16189 97.08 828 811 158.4
B 4 81 15159 90.58 828 811 158.4
C 9 68 41908 217.93 800 806 188.6
C 13 61 6099 28.06 800 806 188.6
C 7 247 3879 16.29 800 806 188.6
D 2 14 80230 396.94 802 780 200.2
D 2 216 34014 166.04 802 780 200.2
D 14 34 18747 89.76 802 780 200.2

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