ASTROSAT CZTI

Data Quality Report

Orbit 04453

Creation date: 2024-06-27T14:42:15.056969
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_253T01_9000000560_04453cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04453cztM0_level2_quad_clean.evt
Size (bytes)473,022,72083,024,640
Size451.1 MB 79.2 MB
Events in quadrant A3,206,551521,950
Events in quadrant B3,294,090508,714
Events in quadrant C3,088,775513,326
Events in quadrant D4,269,229491,286

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145483
B0144602
C0141822
D0176852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6869250.363954%
B6869280.407628%
C6869130.189256%
D68692924.250983%

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 7889 6870 4 4 0.05% 0.06%
B 7889 6870 13 13 0.16% 0.19%
C 7889 6870 2 2 0.03% 0.03%
D 7889 6870 241 241 3.05% 3.51%

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 8 15 92796 579.94 777 761 158.7
A 0 13 88755 554.48 777 761 158.7
A 0 50 13199 78.38 777 761 158.7
B 15 204 108226 710.97 787 767 151.1
B 10 246 47524 309.35 787 767 151.1
B 8 3 37344 242.0 787 767 151.1
C 14 48 103097 581.96 756 761 175.8
C 9 247 15331 82.86 756 761 175.8
C 9 54 11302 59.94 756 761 175.8
D 12 233 506918 2814.74 736 716 179.8
D 12 227 324991 1803.14 736 716 179.8
D 2 63 236351 1310.25 736 716 179.8

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