ASTROSAT CZTI

Data Quality Report

Orbit 47706

Creation date: 2024-07-24T14:15:20.702426
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/AS1T05_213T01_9000006344_47706cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47706cztM0_level2_quad_clean.evt
Size (bytes)472,921,920111,058,560
Size451.0 MB 105.9 MB
Events in quadrant A6,841,601723,406
Events in quadrant B3,043,752769,450
Events in quadrant C2,975,395744,845
Events in quadrant D4,146,503676,458

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252582
B0133902
C0133642
D0166432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64273144.885639%
B6427550.855765%
C6427580.902443%
D64271171.820445%

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 7587 6427 76 76 1.00% 1.18%
B 7587 6427 2 2 0.03% 0.03%
C 7587 6427 13 13 0.17% 0.20%
D 7587 6427 43 43 0.57% 0.67%

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 10 83 3853288 25535.2 735 721 150.9
A 13 248 53386 349.07 735 721 150.9
A 9 191 49882 325.84 735 721 150.9
B 4 21 68259 475.21 738 714 142.1
B 0 200 32681 224.9 738 714 142.1
B 12 111 18014 121.71 738 714 142.1
C 12 2 41757 237.95 740 744 172.4
C 12 250 32836 186.19 740 744 172.4
C 14 254 11023 59.64 740 744 172.4
D 2 165 980825 5316.13 737 715 184.4
D 2 249 206145 1114.25 737 715 184.4
D 13 29 33734 179.1 737 715 184.4

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