ASTROSAT CZTI

Data Quality Report

Orbit 28310

Creation date: 2024-06-27T19:50:20.087826
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/AS1A10_102T10_9000004080_28310cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28310cztM0_level2_quad_clean.evt
Size (bytes)529,470,72093,873,600
Size504.9 MB 89.5 MB
Events in quadrant A3,473,178605,738
Events in quadrant B3,707,179615,067
Events in quadrant C3,377,466597,050
Events in quadrant D5,040,499575,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147620
B0154210
C0144220
D0195750

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6445871.349884%
B64461061.644431%
C64461061.644431%
D64453715.756400%

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 7605 6446 32 32 0.42% 0.50%
B 7606 6447 32 32 0.42% 0.50%
C 7606 6447 0 0 0.00% 0.00%
D 7605 6445 254 254 3.34% 3.94%

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 15 174 225796 1351.79 833 818 166.4
A 13 170 20058 115.6 833 818 166.4
A 8 192 12948 72.88 833 818 166.4
B 10 245 295241 1898.39 833 813 155.1
B 10 246 62145 395.45 833 813 155.1
B 4 200 52546 333.56 833 813 155.1
C 14 238 133137 696.86 817 823 189.9
C 3 233 53149 275.59 817 823 189.9
C 13 61 5739 25.89 817 823 189.9
D 1 52 1153222 6141.15 794 771 187.7
D 8 195 626497 3334.35 794 771 187.7
D 12 233 91732 484.71 794 771 187.7

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