ASTROSAT CZTI

Data Quality Report

Orbit 11463

Creation date: 2024-06-27T16:13:16.955887
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/AS1G08_032T01_9000001680_11463cztM0_level2.evt modeM0/AS1G08_032T01_9000001680_11463cztM0_level2_quad_clean.evt
Size (bytes)300,052,80043,632,000
Size286.2 MB 41.6 MB
Events in quadrant A1,839,771273,270
Events in quadrant B2,860,091265,620
Events in quadrant C1,766,467267,695
Events in quadrant D2,374,952259,198

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076832
B0108991
C075061
D092871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3602812.248751%
B36023048.439756%
C3602491.360355%
D36022236.191005%

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 4903 3604 0 0 0.00% 0.00%
B 4903 3604 115 115 2.35% 3.19%
C 4903 3604 0 0 0.00% 0.00%
D 4903 3604 109 109 2.22% 3.02%

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 9 143 9334 91.59 467 458 96.9
A 1 162 8289 80.81 467 458 96.9
A 8 5 5465 51.67 467 458 96.9
B 4 239 505486 5921.33 450 440 85.3
B 3 64 391541 4585.4 450 440 85.3
B 11 51 86320 1006.89 450 440 85.3
C 13 61 3352 27.38 453 456 105.8
C 3 202 1114 6.22 453 456 105.8
C -1 -1 -1 -1.0 453 456 105.8
D 10 253 323350 3035.21 444 433 106.4
D 1 52 137979 1292.84 444 433 106.4
D 8 195 125985 1180.11 444 433 106.4

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