ASTROSAT CZTI

Data Quality Report

Orbit 04114

Creation date: 2024-06-27T14:37:38.753911
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/AS1G05_167T01_9000000528_04114cztM0_level2.evt modeM0/AS1G05_167T01_9000000528_04114cztM0_level2_quad_clean.evt
Size (bytes)358,764,48059,892,480
Size342.1 MB 57.1 MB
Events in quadrant A2,513,685368,259
Events in quadrant B2,667,641368,132
Events in quadrant C2,593,139363,005
Events in quadrant D2,736,874350,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109812
B0112871
C0113013
D0118711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51881673.218967%
B51882033.912876%
C51871532.949682%
D51881462.814187%

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 5387 5187 0 0 0.00% 0.00%
B 5387 5187 0 0 0.00% 0.00%
C 5387 5186 16 16 0.30% 0.31%
D 5387 5187 31 31 0.58% 0.60%

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 50 20618 147.82 644 630 135.2
A 0 199 9855 68.22 644 630 135.2
A 0 226 7233 48.83 644 630 135.2
B 14 167 90017 700.58 649 634 127.6
B 15 204 53995 418.24 649 634 127.6
B 12 111 11889 88.22 649 634 127.6
C 14 234 113376 758.29 630 634 148.7
C 10 65 10107 63.71 630 634 148.7
C 9 144 8789 54.85 630 634 148.7
D 13 239 211474 1372.08 624 606 153.7
D 10 172 68842 444.0 624 606 153.7
D 2 14 40681 260.76 624 606 153.7

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