ASTROSAT CZTI

Data Quality Report

Orbit 09724

Creation date: 2024-06-27T15:49:52.365607
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/AS1A02_029T01_9000001386_09724cztM0_level2.evt modeM0/AS1A02_029T01_9000001386_09724cztM0_level2_quad_clean.evt
Size (bytes)466,830,72081,800,640
Size445.2 MB 78.0 MB
Events in quadrant A3,240,234513,989
Events in quadrant B3,071,352534,567
Events in quadrant C2,893,296519,301
Events in quadrant D4,511,758476,243

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013765119
B01321095
C012781117
D017828328

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0191
D0202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6207590.950540%
B6218280.450306%
C6206140.225588%
D61844587.406210%

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 7441 6257 23 23 0.31% 0.37%
B 7441 6253 1 1 0.01% 0.02%
C 7441 6253 0 0 0.00% 0.00%
D 7441 6248 479 479 6.44% 7.67%

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 1 162 118208 761.7 753 738 154.2
A 14 111 78279 502.8 753 738 154.2
A 1 178 51728 330.63 753 738 154.2
B 0 219 41106 277.35 767 750 145.5
B 0 214 24526 163.4 767 750 145.5
B 12 111 15642 102.35 767 750 145.5
C 14 234 17856 100.16 737 739 170.9
C 13 61 5422 27.4 737 739 170.9
C 3 202 1841 6.45 737 739 170.9
D 1 52 1590652 8968.77 706 690 177.3
D 10 199 123238 691.28 706 690 177.3
D 2 234 32716 180.65 706 690 177.3

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