ASTROSAT CZTI

Data Quality Report

Orbit 06800

Creation date: 2024-06-27T15:11:48.645805
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_086T02_9000000936_06800cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06800cztM0_level2_quad_clean.evt
Size (bytes)463,628,16060,837,120
Size442.2 MB 58.0 MB
Events in quadrant A3,252,924348,765
Events in quadrant B3,515,365351,000
Events in quadrant C3,289,975345,808
Events in quadrant D3,532,649334,265

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139462
B0146651
C0140541
D0146531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6626530.799879%
B66261001.509206%
C6626400.603682%
D6626721.086628%

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 7801 6627 1 1 0.01% 0.02%
B 7801 6627 32 32 0.41% 0.48%
C 7801 6627 10 10 0.13% 0.15%
D 7801 6627 12 12 0.15% 0.18%

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 13 248 64849 382.41 827 811 167.5
A 0 226 8005 42.96 827 811 167.5
A 12 194 7634 40.74 827 811 167.5
B 0 228 281631 1795.2 827 807 156.4
B 4 81 18245 111.47 827 807 156.4
B 12 111 15411 93.36 827 807 156.4
C 12 16 130746 703.47 800 805 184.7
C 9 247 37879 200.71 800 805 184.7
C 13 61 6245 29.45 800 805 184.7
D 8 195 306031 1543.33 803 777 197.8
D 13 169 80810 404.63 803 777 197.8
D 5 97 74445 372.45 803 777 197.8

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