ASTROSAT CZTI

Data Quality Report

Orbit 11332

Creation date: 2024-06-27T16:11:25.081371
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_11332cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11332cztM0_level2_quad_clean.evt
Size (bytes)577,883,52088,787,520
Size551.1 MB 84.7 MB
Events in quadrant A3,166,530595,469
Events in quadrant B5,552,256532,336
Events in quadrant C2,964,175597,005
Events in quadrant D5,400,952533,502

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132682
B0204751
C0127361
D0200561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6155610.991064%
B615599916.230707%
C6155400.649878%
D615571211.567831%

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 7455 6156 1 1 0.01% 0.02%
B 7455 6156 744 744 9.98% 12.09%
C 7455 6156 0 0 0.00% 0.00%
D 7455 6156 583 583 7.82% 9.47%

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 13 251 73308 468.61 769 754 154.8
A 8 15 50644 322.23 769 754 154.8
A 1 162 30951 195.03 769 754 154.8
B 3 64 1922526 14334.47 715 697 134.1
B 4 239 672954 5014.21 715 697 134.1
B 3 189 68205 503.53 715 697 134.1
C 13 61 5623 27.88 757 762 174.3
C 9 54 5313 26.1 757 762 174.3
C 14 234 3814 17.51 757 762 174.3
D 5 222 781937 4600.76 710 692 169.8
D 13 104 536944 3158.0 710 692 169.8
D 10 253 512492 3014.0 710 692 169.8

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