ASTROSAT CZTI

Data Quality Report

Orbit 08413

Creation date: 2024-06-27T15:32:17.917893
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_025T07_9000001182_08413cztM0_level2.evt modeM0/AS1A03_025T07_9000001182_08413cztM0_level2_quad_clean.evt
Size (bytes)178,439,04036,339,840
Size170.2 MB 34.7 MB
Events in quadrant A1,254,792230,189
Events in quadrant B1,330,044231,245
Events in quadrant C1,210,430223,112
Events in quadrant D1,415,119214,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056410
B057690
C056330
D061360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A281420.071073%
B281450.177683%
C281410.035537%
D2814291.030561%

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 2814 2814 0 0 0.00% 0.00%
B 2814 2814 1 1 0.04% 0.04%
C 2814 2814 0 0 0.00% 0.00%
D 2814 2814 22 22 0.78% 0.78%

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 15 236 5399 74.46 324 316 68.3
A 0 226 3055 40.12 324 316 68.3
A 12 194 2856 37.21 324 316 68.3
B 0 214 68731 1090.52 321 313 62.7
B 12 111 6630 100.69 321 313 62.7
B 11 111 5421 81.42 321 313 62.7
C 13 61 2220 26.0 309 311 73.4
C 8 222 1214 12.3 309 311 73.4
C 10 169 992 9.28 309 311 73.4
D 4 95 155226 1982.73 313 302 78.1
D 7 71 37104 470.99 313 302 78.1
D 12 233 22509 284.2 313 302 78.1

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