ASTROSAT CZTI

Data Quality Report

Orbit 07408

Creation date: 2024-06-27T15:19:21.510474
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/AS1A02_150T03_9000001018_07408cztM0_level2.evt modeM0/AS1A02_150T03_9000001018_07408cztM0_level2_quad_clean.evt
Size (bytes)191,471,04050,497,920
Size182.6 MB 48.2 MB
Events in quadrant A1,377,741327,824
Events in quadrant B1,418,154331,332
Events in quadrant C1,363,782325,612
Events in quadrant D1,415,145312,760

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0656938
B0657931
C0657137
D0678438

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0651
B0662
C0662
D0662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A326150.153327%
B326330.091940%
C326220.061312%
D3261140.429316%

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 3266 3264 0 0 0.00% 0.00%
B 3268 3267 0 0 0.00% 0.00%
C 3265 3264 1 1 0.03% 0.03%
D 3266 3262 15 15 0.46% 0.46%

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 3 1 8318 108.35 355 349 73.5
A 0 226 3357 40.9 355 349 73.5
A 12 194 3165 38.29 355 349 73.5
B 0 214 9514 132.78 360 352 69.0
B 12 111 6898 94.87 360 352 69.0
B 4 81 5909 80.54 360 352 69.0
C 12 4 4219 47.03 347 349 82.3
C 10 22 3689 40.59 347 349 82.3
C 13 61 2702 28.6 347 349 82.3
D 2 14 43573 502.95 342 331 86.0
D 2 216 33918 390.65 342 331 86.0
D 14 34 12611 142.83 342 331 86.0

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