ASTROSAT CZTI

Data Quality Report

Orbit 03388

Creation date: 2024-06-27T14:28:21.723951
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_112T01_9000000452_03388cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03388cztM0_level2_quad_clean.evt
Size (bytes)443,263,68080,314,560
Size422.7 MB 76.6 MB
Events in quadrant A3,778,973495,896
Events in quadrant B3,183,634506,956
Events in quadrant C3,092,635501,578
Events in quadrant D2,931,090478,157

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154803
B0137062
C0135742
D0134682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6452570.883447%
B6452560.867948%
C6452320.495970%
D6452270.418475%

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 7587 6453 15 15 0.20% 0.23%
B 7587 6453 2 2 0.03% 0.03%
C 7587 6453 4 4 0.05% 0.06%
D 7587 6453 8 8 0.11% 0.12%

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 31 662092 4201.36 765 749 157.4
A 0 118 83364 524.83 765 749 157.4
A 8 15 74425 468.05 765 749 157.4
B 15 204 79760 521.44 785 768 151.5
B 0 229 30084 193.52 785 768 151.5
B 2 249 19696 124.95 785 768 151.5
C 9 144 65860 364.61 758 762 178.5
C 1 16 29597 161.5 758 762 178.5
C 1 192 19765 106.43 758 762 178.5
D 13 223 35238 190.5 746 726 181.2
D 13 239 29255 157.47 746 726 181.2
D 2 206 18420 97.67 746 726 181.2

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