ASTROSAT CZTI

Data Quality Report

Orbit 17410

Creation date: 2024-06-27T17:36:09.067780
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/AS1T03_030T01_9000002574_17410cztM0_level2.evt modeM0/AS1T03_030T01_9000002574_17410cztM0_level2_quad_clean.evt
Size (bytes)473,284,80088,050,240
Size451.4 MB 84.0 MB
Events in quadrant A3,282,424569,959
Events in quadrant B3,354,615575,108
Events in quadrant C3,422,249541,617
Events in quadrant D3,840,256534,022

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138322
B0140142
C0140082
D0156032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63931121.751916%
B63941282.001877%
C63941552.424148%
D63941412.205192%

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 8653 6393 0 0 0.00% 0.00%
B 8654 6394 0 0 0.00% 0.00%
C 8654 6394 0 0 0.00% 0.00%
D 8654 6394 44 44 0.51% 0.69%

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 0 226 7371 38.06 854 839 171.6
A 12 194 6264 31.61 854 839 171.6
A 3 137 6046 30.34 854 839 171.6
B 15 19 19232 116.21 847 830 158.4
B 12 111 18743 113.12 847 830 158.4
B 11 111 16584 99.49 847 830 158.4
C 14 238 125274 672.23 799 805 185.2
C 3 233 93780 502.14 799 805 185.2
C 5 218 64772 345.47 799 805 185.2
D 13 232 377304 1925.65 813 791 195.5
D 11 176 114120 579.61 813 791 195.5
D 10 70 100343 509.15 813 791 195.5

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