ASTROSAT CZTI

Data Quality Report

Orbit 22509

Creation date: 2024-06-27T18:42:06.365623
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_144T02_9000003340_22509cztM0_level2.evt modeM0/AS1A07_144T02_9000003340_22509cztM0_level2_quad_clean.evt
Size (bytes)189,627,84025,943,040
Size180.8 MB 24.7 MB
Events in quadrant A1,332,921152,194
Events in quadrant B1,541,364154,690
Events in quadrant C1,377,030151,679
Events in quadrant D1,320,953148,242

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055391
B061351
C056751
D054961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247980.322711%
B2479431.734570%
C2479331.331182%
D2479100.403388%

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 2479 2479 0 0 0.00% 0.00%
B 2479 2479 13 13 0.52% 0.52%
C 2479 2479 0 0 0.00% 0.00%
D 2479 2479 1 1 0.04% 0.04%

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 4335 56.75 345 339 70.4
A 0 226 3074 38.84 345 339 70.4
A 3 137 2720 33.81 345 339 70.4
B 15 33 74257 1136.67 345 338 65.0
B 0 228 53226 813.27 345 338 65.0
B 15 35 36683 558.88 345 338 65.0
C 14 238 54683 688.16 338 340 79.0
C 0 10 3496 39.97 338 340 79.0
C 13 61 2295 24.76 338 340 79.0
D 1 52 16465 193.11 341 332 83.5
D 2 234 9845 113.87 341 332 83.5
D 2 120 6171 69.89 341 332 83.5

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