ASTROSAT CZTI

Data Quality Report

Orbit 05138

Creation date: 2024-06-27T14:51:50.186674
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_102T01_9000000650_05138cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05138cztM0_level2_quad_clean.evt
Size (bytes)442,111,68060,969,600
Size421.6 MB 58.1 MB
Events in quadrant A3,046,691355,526
Events in quadrant B3,582,052357,252
Events in quadrant C3,054,800357,726
Events in quadrant D3,282,241340,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128983
B0144332
C0129942
D0139092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6233641.026793%
B62331792.871811%
C6233801.283491%
D62331221.957324%

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 8803 6235 0 0 0.00% 0.00%
B 8803 6235 57 57 0.65% 0.91%
C 8803 6235 0 0 0.00% 0.00%
D 8803 6235 54 54 0.61% 0.87%

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 12 194 7801 43.44 790 774 161.8
A 0 226 7727 42.98 790 774 161.8
A 0 50 6720 36.76 790 774 161.8
B 10 16 373515 2503.37 794 779 148.9
B 15 204 38690 254.62 794 779 148.9
B 4 80 34291 225.07 794 779 148.9
C 1 16 20433 111.2 771 776 176.8
C 12 4 20053 109.05 771 776 176.8
C 13 61 6345 31.51 771 776 176.8
D 2 33 187606 1005.1 764 742 185.9
D 12 233 169719 908.89 764 742 185.9
D 2 14 22588 117.51 764 742 185.9

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