ASTROSAT CZTI

Data Quality Report

Orbit 15110

Creation date: 2024-06-27T17:03:48.846422
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/AS1A04_130T03_9000002224_15110cztM0_level2.evt modeM0/AS1A04_130T03_9000002224_15110cztM0_level2_quad_clean.evt
Size (bytes)349,012,80054,138,240
Size332.8 MB 51.6 MB
Events in quadrant A2,097,620337,661
Events in quadrant B3,680,226340,516
Events in quadrant C2,427,090343,968
Events in quadrant D2,084,048326,223

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086873
B0137751
C097951
D086921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4119220.534110%
B41193899.444040%
C4119150.364166%
D4119200.485555%

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 5451 4122 0 0 0.00% 0.00%
B 5451 4122 214 214 3.93% 5.19%
C 5451 4122 2 2 0.04% 0.05%
D 5451 4122 14 14 0.26% 0.34%

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 12 189 9940 85.2 540 529 110.5
A 9 143 5567 45.61 540 529 110.5
A 0 226 4877 39.36 540 529 110.5
B 10 245 1174672 11703.95 526 512 100.3
B 0 229 290064 2886.23 526 512 100.3
B 3 64 137414 1364.63 526 512 100.3
C 3 233 298481 2403.19 535 539 124.0
C 4 254 43852 349.36 535 539 124.0
C 13 61 3730 25.74 535 539 124.0
D 13 249 26656 202.13 532 516 129.3
D 2 152 20056 151.09 532 516 129.3
D 2 120 16267 121.79 532 516 129.3

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