ASTROSAT CZTI

Data Quality Report

Orbit 24717

Creation date: 2024-06-27T19:09:06.814787
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/AS1T03_194T01_9000003620_24717cztM0_level2.evt modeM0/AS1T03_194T01_9000003620_24717cztM0_level2_quad_clean.evt
Size (bytes)30,458,8803,991,680
Size29.0 MB 3.8 MB
Events in quadrant A206,49319,646
Events in quadrant B206,61221,939
Events in quadrant C259,43818,564
Events in quadrant D215,81220,734

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088
B088
C088
D099

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055894670
B056674771
C070215963
D063165348

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06052
B05143
C05240
D04537

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45800.000000%
B44700.000000%
C41820.478469%
D47300.000000%

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 1343 614 0 0 0.00% 0.00%
B 3982 605 0 0 0.00% 0.00%
C 1326 578 0 0 0.00% 0.00%
D 1341 629 0 0 0.00% 0.00%

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 13 254 727 52.29 53 52 12.9
A 3 137 499 34.63 53 52 12.9
A 0 226 438 29.9 53 52 12.9
B 12 111 1305 101.3 52 51 12.4
B 14 111 1054 81.03 52 51 12.4
B 11 111 1039 79.82 52 51 12.4
C 7 247 67155 5195.91 46 46 12.9
C 14 238 7309 562.34 46 46 12.9
C 3 233 2981 227.24 46 46 12.9
D 8 195 9834 650.82 52 50 15.0
D 13 104 4933 324.81 52 50 15.0
D 1 52 2504 163.24 52 50 15.0

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