ASTROSAT CZTI

Data Quality Report

Orbit 06512

Creation date: 2024-06-27T15:08:14.942441
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_136T02_9000000876_06512cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06512cztM0_level2_quad_clean.evt
Size (bytes)429,117,120100,664,640
Size409.2 MB 96.0 MB
Events in quadrant A3,109,361653,156
Events in quadrant B3,117,357674,062
Events in quadrant C2,965,643652,732
Events in quadrant D3,359,431613,354

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137193
B0136102
C0135202
D0146582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6523340.521233%
B6523290.444581%
C6523140.214625%
D6523831.272421%

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 7823 6524 0 0 0.00% 0.00%
B 7823 6524 2 2 0.03% 0.03%
C 7823 6524 0 0 0.00% 0.00%
D 7823 6524 41 41 0.52% 0.63%

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 99356 631.22 771 756 156.2
A 8 15 40081 251.75 771 756 156.2
A 0 226 7526 43.34 771 756 156.2
B 0 219 15289 98.15 785 766 148.0
B 4 81 14750 94.51 785 766 148.0
B 12 111 14676 94.01 785 766 148.0
C 1 16 31701 179.17 750 755 172.7
C 13 61 6019 30.48 750 755 172.7
C 12 4 3170 13.98 750 755 172.7
D 2 152 322565 1786.9 736 712 180.1
D 10 172 71279 391.78 736 712 180.1
D 2 14 44471 242.95 736 712 180.1

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