ASTROSAT CZTI

Data Quality Report

Orbit 11365

Creation date: 2024-06-27T16:11:53.108769
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/AS1G08_062T01_9000001660_11365cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11365cztM0_level2_quad_clean.evt
Size (bytes)575,645,76085,325,760
Size549.0 MB 81.4 MB
Events in quadrant A3,445,046536,196
Events in quadrant B5,677,267493,584
Events in quadrant C3,294,894537,848
Events in quadrant D4,518,558505,417

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152783
B0219212
C0150042
D0185472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7327851.160093%
B732784811.573632%
C7327350.477685%
D73273825.213594%

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 7927 7329 1 1 0.01% 0.01%
B 7927 7329 500 500 6.31% 6.82%
C 7927 7329 0 0 0.00% 0.00%
D 7927 7328 276 276 3.48% 3.77%

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 15 174 73322 412.32 859 841 175.8
A 8 15 17358 93.96 859 841 175.8
A 1 162 16818 90.89 859 841 175.8
B 4 206 1417520 8880.82 828 807 159.5
B 4 239 567089 3549.8 828 807 159.5
B 3 64 305845 1912.16 828 807 159.5
C 13 61 6130 26.86 843 848 196.6
C 14 234 5371 23.0 843 848 196.6
C 12 4 2677 9.3 843 848 196.6
D 10 253 801303 4044.16 814 792 197.9
D 2 120 182215 916.54 814 792 197.9
D 1 52 172737 868.66 814 792 197.9

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