ASTROSAT CZTI

Data Quality Report

Orbit 05566

Creation date: 2024-06-27T14:56:42.781688
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/AS1G06_129T01_9000000718_05566cztM0_level2.evt modeM0/AS1G06_129T01_9000000718_05566cztM0_level2_quad_clean.evt
Size (bytes)1,406,554,560202,351,680
Size1.3 GB 193.0 MB
Events in quadrant A9,183,3981,203,695
Events in quadrant B11,264,4401,213,189
Events in quadrant C11,045,2251,198,259
Events in quadrant D9,768,9231,150,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04060
B04060
C04060
D04060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04092865
B04698580
C04641965
D04304287

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A197592021.022319%
B197583461.751189%
C197643021.528031%
D197532211.118817%

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 21923 19790 38 38 0.17% 0.19%
B 21923 19792 84 84 0.38% 0.42%
C 21923 19792 113 113 0.52% 0.57%
D 21923 19792 106 106 0.48% 0.54%

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 0 50 198243 416.71 2298 2240 470.4
A 8 15 46016 93.07 2298 2240 470.4
A 13 14 39616 79.46 2298 2240 470.4
B 15 204 943469 2121.97 2320 2262 443.6
B 11 51 358549 803.25 2320 2262 443.6
B 10 16 336945 754.55 2320 2262 443.6
C 9 16 2217766 4268.25 2234 2240 519.1
C 1 16 55389 102.39 2234 2240 519.1
C 8 128 25323 44.47 2234 2240 519.1
D 2 152 754180 1375.1 2234 2161 546.9
D 8 195 334594 607.87 2234 2161 546.9
D 2 14 87918 156.81 2234 2161 546.9

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