ASTROSAT CZTI

Data Quality Report

Orbit 04244

Creation date: 2024-06-27T14:39:17.016854
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/AS1G05_240T01_9000000536_04244cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04244cztM0_level2_quad_clean.evt
Size (bytes)640,275,84065,056,320
Size610.6 MB 62.0 MB
Events in quadrant A3,454,590387,606
Events in quadrant B3,431,524384,483
Events in quadrant C3,044,787375,135
Events in quadrant D8,992,336340,563

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149602
B0147791
C0141031
D0315671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69141402.024877%
B69141091.576511%
C6914430.621927%
D691496513.957188%

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 7439 6915 44 44 0.59% 0.64%
B 7439 6915 13 13 0.17% 0.19%
C 7439 6915 0 0 0.00% 0.00%
D 7439 6915 783 783 10.53% 11.32%

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 15 169 96253 577.67 803 784 165.3
A 0 50 90995 545.86 803 784 165.3
A 0 199 68588 410.28 803 784 165.3
B 4 81 65932 414.46 812 793 157.2
B 7 252 63067 396.23 812 793 157.2
B 15 204 47943 300.0 812 793 157.2
C 13 61 6280 30.05 777 778 183.1
C 10 65 5350 24.97 777 778 183.1
C 9 144 4380 19.67 777 778 183.1
D 2 63 4705189 26263.12 737 716 179.1
D 11 132 952331 5312.47 737 716 179.1
D 1 52 123341 684.56 737 716 179.1

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