ASTROSAT CZTI

Data Quality Report

Orbit 29884

Creation date: 2024-06-27T20:08:40.100454
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/AS1A10_102T10_9000004282_29884cztM0_level2.evt modeM0/AS1A10_102T10_9000004282_29884cztM0_level2_quad_clean.evt
Size (bytes)550,002,24080,478,720
Size524.5 MB 76.8 MB
Events in quadrant A2,731,895528,755
Events in quadrant B4,408,604524,060
Events in quadrant C5,917,976478,583
Events in quadrant D3,203,575497,583

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120002
B0176002
C0216302
D0134962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5831440.754588%
B5832961.646091%
C58325679.722222%
D5832530.908779%

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 6091 5834 0 0 0.00% 0.00%
B 6092 5835 1 1 0.02% 0.02%
C 6092 5835 122 122 2.00% 2.09%
D 6092 5835 19 19 0.31% 0.33%

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 8 192 20911 143.47 699 682 141.0
A 13 254 10554 70.01 699 682 141.0
A 1 113 10102 66.81 699 682 141.0
B 6 159 1675837 12542.2 691 673 133.6
B 12 111 16580 119.1 691 673 133.6
B 11 111 15040 107.57 691 673 133.6
C 3 233 3233671 21050.6 655 657 153.6
C 14 238 107146 693.36 655 657 153.6
C 2 114 13506 83.66 655 657 153.6
D 8 195 443448 2759.72 678 661 160.4
D 13 104 61194 377.28 678 661 160.4
D 2 250 47914 294.51 678 661 160.4

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