ASTROSAT CZTI

Data Quality Report

Orbit 48070

Creation date: 2024-08-20T11:33:39.598057
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/AS1A13_024T01_9000006394_48070cztM0_level2.fits modeM0/AS1A13_024T01_9000006394_48070cztM0_level2_quad_clean.evt
Size (bytes)381,047,04080,026,560
Size363.4 MB 76.3 MB
Events in quadrant A6,543,997673,017
Events in quadrant B998,24740,736
Events in quadrant C2,734,615675,500
Events in quadrant D3,360,663617,357

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231972
B061882
C0122622
D0141022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59215258.866745%
B59225922100.000000%
C5922320.540358%
D59221362.296521%

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 7107 5921 191 191 2.69% 3.23%
B 7107 5921 0 0 0.00% 0.00%
C 7108 5923 4 4 0.06% 0.07%
D 7108 5923 57 57 0.80% 0.96%

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 3594038 25645.87 675 660 140.1
A 0 31 247913 1764.64 675 660 140.1
A 13 248 71747 507.35 675 660 140.1
B 2 177 821111 77979.01 42 41 10.5
B 5 32 3082 288.81 42 41 10.5
B 5 255 2679 250.54 42 41 10.5
C 12 2 18652 110.19 689 696 163.0
C 1 3 13390 77.9 689 696 163.0
C 14 254 11015 63.32 689 696 163.0
D 2 165 298565 1701.09 685 665 175.1
D 2 249 191765 1091.23 685 665 175.1
D 11 224 111977 635.62 685 665 175.1

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