ASTROSAT CZTI

Data Quality Report

Orbit 05844

Creation date: 2024-06-27T14:59:53.776606
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_039T01_9000000758_05844cztM0_level2.evt modeM0/AS1G06_039T01_9000000758_05844cztM0_level2_quad_clean.evt
Size (bytes)415,016,640106,130,880
Size395.8 MB 101.2 MB
Events in quadrant A2,865,650699,728
Events in quadrant B3,100,639695,117
Events in quadrant C2,842,169698,552
Events in quadrant D3,317,167666,693

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133183
B0138392
C0132732
D0145472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6507120.184417%
B6507280.430306%
C6507150.230521%
D6507640.983556%

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 8537 6509 0 0 0.00% 0.00%
B 8537 6509 1 1 0.01% 0.02%
C 8537 6509 0 0 0.00% 0.00%
D 8537 6509 47 47 0.55% 0.72%

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 14 111 9853 60.55 737 722 150.8
A 15 234 7860 47.33 737 722 150.8
A 12 194 7258 43.34 737 722 150.8
B 15 204 89232 625.01 745 726 141.6
B 0 214 59788 417.08 745 726 141.6
B 4 81 22480 153.62 745 726 141.6
C 13 61 5922 30.76 725 727 168.9
C 12 4 4865 24.5 725 727 168.9
C 8 222 2625 11.24 725 727 168.9
D 2 152 224366 1264.9 716 694 176.8
D 2 14 103900 583.64 716 694 176.8
D 12 233 90735 509.19 716 694 176.8

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