ASTROSAT CZTI

Data Quality Report

Orbit 19832

Creation date: 2024-06-27T18:07:39.713477
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/AS1T03_118T01_9000002962_19832cztM0_level2.evt modeM0/AS1T03_118T01_9000002962_19832cztM0_level2_quad_clean.evt
Size (bytes)480,608,64093,919,680
Size458.3 MB 89.6 MB
Events in quadrant A3,169,626608,053
Events in quadrant B3,288,180620,982
Events in quadrant C3,227,499596,363
Events in quadrant D4,430,790567,571

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135172
B0138602
C0135622
D0173222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473290.448015%
B6472751.158838%
C6472751.158838%
D64722003.090235%

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 7533 6474 1 1 0.01% 0.02%
B 7532 6473 8 8 0.11% 0.12%
C 7532 6473 0 0 0.00% 0.00%
D 7532 6473 214 214 2.84% 3.31%

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 5 16 13468 77.03 816 798 164.5
A 0 23 8373 46.05 816 798 164.5
A 0 226 7226 39.08 816 798 164.5
B 7 220 35575 222.4 817 797 156.4
B 12 111 18731 114.68 817 797 156.4
B 11 111 16661 101.45 817 797 156.4
C 14 238 123247 653.09 796 803 187.5
C 13 61 5454 24.8 796 803 187.5
C 9 221 3113 12.32 796 803 187.5
D 1 20 1038649 5383.62 793 770 192.8
D 1 52 324606 1679.78 793 770 192.8
D 7 238 38156 193.93 793 770 192.8

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