ASTROSAT CZTI

Data Quality Report

Orbit 05399

Creation date: 2024-06-27T14:54:45.889686
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/AS1G05_214T01_9000000684_05399cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05399cztM0_level2_quad_clean.evt
Size (bytes)465,537,60069,572,160
Size444.0 MB 66.3 MB
Events in quadrant A2,800,369430,350
Events in quadrant B3,147,735440,711
Events in quadrant C2,831,867434,662
Events in quadrant D4,916,447386,559

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122722
B0131501
C0122921
D0186061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5928300.506073%
B5928590.995277%
C5928250.421727%
D59284367.354926%

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 7243 5929 1 1 0.01% 0.02%
B 7243 5929 11 11 0.15% 0.19%
C 7243 5929 0 0 0.00% 0.00%
D 7243 5929 410 410 5.66% 6.92%

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 13 6 17614 115.43 715 699 146.5
A 0 50 13426 86.85 715 699 146.5
A 4 2 8095 50.47 715 699 146.5
B 0 219 103158 730.32 732 716 140.3
B 0 187 100401 710.66 732 716 140.3
B 4 81 52866 371.78 732 716 140.3
C 1 16 79816 482.57 700 705 163.9
C 14 67 15332 89.22 700 705 163.9
C 13 61 5685 30.38 700 705 163.9
D 2 63 1898187 11438.97 674 655 165.9
D 2 33 335697 2019.75 674 655 165.9
D 2 14 43973 261.14 674 655 165.9

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