ASTROSAT CZTI

Data Quality Report

Orbit 11163

Creation date: 2024-06-27T16:09:04.128131
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/AS1A04_058T01_9000001628_11163cztM0_level2.evt modeM0/AS1A04_058T01_9000001628_11163cztM0_level2_quad_clean.evt
Size (bytes)373,109,76052,799,040
Size355.8 MB 50.4 MB
Events in quadrant A3,638,244307,744
Events in quadrant B2,553,623340,445
Events in quadrant C1,800,562346,061
Events in quadrant D3,022,840309,777

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01374434
B0103751
C085203
D01200111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A416763815.310775%
B41732024.840642%
C4172581.390221%
D41703247.769784%

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 4958 4173 357 357 7.20% 8.55%
B 4958 4174 67 67 1.35% 1.61%
C 4958 4174 0 0 0.00% 0.00%
D 4958 4174 203 203 4.09% 4.86%

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 14 238 1344658 14538.05 448 438 92.5
A 8 15 272060 2937.65 448 438 92.5
A 8 5 255424 2757.73 448 438 92.5
B 4 239 479670 5379.38 469 457 89.1
B 4 80 103640 1158.27 469 457 89.1
B 0 214 31497 348.44 469 457 89.1
C 12 4 5683 48.75 459 460 107.1
C 13 61 3470 28.1 459 460 107.1
C 14 234 2205 16.29 459 460 107.1
D 12 16 680665 6354.97 443 429 107.0
D 10 157 335549 3130.79 443 429 107.0
D 1 52 121467 1130.77 443 429 107.0

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