ASTROSAT CZTI

Data Quality Report

Orbit 08136

Creation date: 2024-06-27T15:28:30.858910
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/AS1A03_051T01_9000001120_08136cztM0_level2.evt modeM0/AS1A03_051T01_9000001120_08136cztM0_level2_quad_clean.evt
Size (bytes)22,631,0407,531,200
Size21.6 MB 7.2 MB
Events in quadrant A167,44948,439
Events in quadrant B169,88249,396
Events in quadrant C159,42147,571
Events in quadrant D157,20145,515

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08241
B08170
C08160
D08300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40800.000000%
B40800.000000%
C40800.000000%
D40810.245098%

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 408 408 0 0 0.00% 0.00%
B 408 408 0 0 0.00% 0.00%
C 408 408 0 0 0.00% 0.00%
D 408 408 1 1 0.25% 0.25%

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 13 170 4446 404.67 42 41 10.9
A 0 226 398 32.8 42 41 10.9
A 8 15 394 32.43 42 41 10.9
B 0 219 4028 382.43 42 41 10.4
B 12 111 928 85.08 42 41 10.4
B 11 111 664 59.76 42 41 10.4
C 14 67 380 30.15 40 40 11.3
C 13 61 290 22.17 40 40 11.3
C 8 222 246 18.27 40 40 11.3
D 1 52 5866 490.3 39 38 11.9
D 2 234 1237 100.87 39 38 11.9
D 2 14 781 62.51 39 38 11.9

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