ASTROSAT CZTI

Data Quality Report

Orbit 22463

Creation date: 2024-06-27T18:41:26.580520
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/AS1A07_065T01_9000003338_22463cztM0_level2.evt modeM0/AS1A07_065T01_9000003338_22463cztM0_level2_quad_clean.evt
Size (bytes)494,409,60080,156,160
Size471.5 MB 76.4 MB
Events in quadrant A3,350,474503,430
Events in quadrant B4,244,339501,921
Events in quadrant C3,513,312492,517
Events in quadrant D3,438,059489,906

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142332
B0170092
C0146653
D0145672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296500.794155%
B62961181.874206%
C62951502.382844%
D6295821.302621%

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 7546 6296 0 0 0.00% 0.00%
B 7546 6296 35 35 0.46% 0.56%
C 7545 6295 10 10 0.13% 0.16%
D 7545 6295 28 28 0.37% 0.44%

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 32975 186.52 861 846 172.3
A 13 254 9128 48.08 861 846 172.3
A 0 226 7304 37.49 861 846 172.3
B 0 244 795310 4947.35 859 842 160.6
B 5 172 24836 149.42 859 842 160.6
B 0 197 19168 114.12 859 842 160.6
C 14 238 135517 695.88 839 847 193.5
C 10 22 83145 425.26 839 847 193.5
C 0 10 20138 99.68 839 847 193.5
D 1 52 106783 518.45 850 828 204.4
D 13 249 66502 321.35 850 828 204.4
D 2 234 27537 130.69 850 828 204.4

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