ASTROSAT CZTI

Data Quality Report

Orbit 44097

Creation date: 2024-06-27T22:59:21.451205
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_038T01_9000005944_44097cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44097cztM0_level2_quad_clean.evt
Size (bytes)716,855,04085,259,520
Size683.6 MB 81.3 MB
Events in quadrant A12,353,95290,255
Events in quadrant B3,514,714739,029
Events in quadrant C2,932,369725,841
Events in quadrant D7,262,478602,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0408856
B0145531
C0128401
D0259131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6072545289.789196%
B60732313.803721%
C6073400.658653%
D607365110.719578%

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 7347 6068 3199 3199 43.54% 52.72%
B 7348 6074 83 83 1.13% 1.37%
C 7348 6074 20 20 0.27% 0.33%
D 7348 6074 675 675 9.19% 11.11%

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 15 223 10503373 172553.5 289 284 60.9
A 10 83 474649 7793.26 289 284 60.9
A 15 222 219225 3596.95 289 284 60.9
B 4 171 217425 1581.69 712 692 137.0
B 15 36 200333 1456.95 712 692 137.0
B 5 172 116531 845.38 712 692 137.0
C 14 254 104477 626.01 707 712 165.8
C 14 96 51179 304.46 707 712 165.8
C 3 233 11193 63.23 707 712 165.8
D 1 52 3333525 19208.05 674 651 173.5
D 5 222 726588 4183.73 674 651 173.5
D 5 235 123229 706.44 674 651 173.5

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