ASTROSAT CZTI

Data Quality Report

Orbit 23943

Creation date: 2024-06-27T19:00:19.284111
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/AS1A07_101T02_9000003544_23943cztM0_level2.evt modeM0/AS1A07_101T02_9000003544_23943cztM0_level2_quad_clean.evt
Size (bytes)528,900,48080,570,880
Size504.4 MB 76.8 MB
Events in quadrant A3,257,211505,375
Events in quadrant B3,663,263514,202
Events in quadrant C3,416,775500,259
Events in quadrant D5,251,655478,673

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136192
B0149541
C0139671
D0199951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6324641.012018%
B63251261.992095%
C63251251.976285%
D63255839.217391%

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 7484 6325 0 0 0.00% 0.00%
B 7485 6326 16 16 0.21% 0.25%
C 7485 6326 3 3 0.04% 0.05%
D 7484 6325 428 428 5.72% 6.77%

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 9422 50.96 845 829 168.6
A 0 226 7234 37.98 845 829 168.6
A 3 137 7021 36.72 845 829 168.6
B 0 197 313163 1984.3 838 820 157.4
B 0 189 51302 320.71 838 820 157.4
B 12 111 18402 111.7 838 820 157.4
C 14 238 130631 691.18 818 823 187.8
C 10 9 64269 337.83 818 823 187.8
C 0 10 26465 136.53 818 823 187.8
D 12 218 1115847 5855.65 793 774 190.4
D 8 195 625754 3282.0 793 774 190.4
D 1 52 307100 1608.63 793 774 190.4

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