ASTROSAT CZTI

Data Quality Report

Orbit 44411

Creation date: 2024-06-27T23:03:17.005767
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/AS1A13_008T08_9000005998_44411cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44411cztM0_level2_quad_clean.evt
Size (bytes)508,363,200105,269,760
Size484.8 MB 100.4 MB
Events in quadrant A4,879,990707,150
Events in quadrant B3,271,473739,027
Events in quadrant C3,463,345702,072
Events in quadrant D6,681,015570,380

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204401
B0141772
C0150881
D0244551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67231552.305518%
B6723951.413060%
C67231612.394764%
D6723105415.677525%

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 8339 6726 4 4 0.05% 0.06%
B 8339 6726 12 12 0.14% 0.18%
C 8339 6726 60 60 0.72% 0.89%
D 8339 6726 931 931 11.16% 13.84%

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 10 83 1857652 11614.46 764 748 159.9
A 13 248 19231 115.61 764 748 159.9
A 0 243 19084 114.69 764 748 159.9
B 0 190 59247 379.33 767 744 154.2
B 5 255 49238 314.44 767 744 154.2
B 0 183 46142 294.36 767 744 154.2
C 12 16 278302 1565.0 749 754 177.3
C 14 254 231578 1301.54 749 754 177.3
C 3 233 16978 91.48 749 754 177.3
D 13 249 1252090 6963.86 706 686 179.7
D 2 249 761542 4234.04 706 686 179.7
D 8 240 534100 2968.36 706 686 179.7

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