ASTROSAT CZTI

Data Quality Report

Orbit 44587

Creation date: 2024-06-27T23:04:12.273102
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_009T03_9000006006_44587cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44587cztM0_level2_quad_clean.evt
Size (bytes)492,327,360116,133,120
Size469.5 MB 110.8 MB
Events in quadrant A5,251,114787,051
Events in quadrant B3,736,299791,650
Events in quadrant C3,959,567751,064
Events in quadrant D4,727,599693,270

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216292
B0159212
C0165502
D0186862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70811241.751165%
B70821922.711099%
C70821792.527535%
D70822243.162948%

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 9091 7082 14 14 0.15% 0.20%
B 9092 7083 114 114 1.25% 1.61%
C 9092 7084 126 126 1.39% 1.78%
D 9092 7084 234 234 2.57% 3.30%

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 2056170 12276.49 809 794 167.4
A 13 248 39394 230.55 809 794 167.4
A 8 4 14510 81.92 809 794 167.4
B 5 32 242676 1556.78 801 779 155.4
B 5 172 157600 1009.26 801 779 155.4
B 0 186 77482 493.64 801 779 155.4
C 12 2 511602 2754.17 784 788 185.5
C 14 254 171055 918.03 784 788 185.5
C 3 233 85849 458.63 784 788 185.5
D 13 249 946333 4809.89 782 759 196.6
D 1 52 549638 2792.0 782 759 196.6
D 12 17 71377 359.22 782 759 196.6

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