ASTROSAT CZTI

Data Quality Report

Orbit 15066

Creation date: 2024-06-27T17:03:16.264293
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/AS1T02_060T01_9000002216_15066cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15066cztM0_level2_quad_clean.evt
Size (bytes)440,147,52092,612,160
Size419.8 MB 88.3 MB
Events in quadrant A3,181,640599,510
Events in quadrant B3,300,685620,657
Events in quadrant C3,458,787591,257
Events in quadrant D2,967,602560,521

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132583
B0135592
C0139902
D0130002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200440.709677%
B6200480.774194%
C6200290.467742%
D6200360.580645%

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 7486 6202 0 0 0.00% 0.00%
B 7486 6201 0 0 0.00% 0.00%
C 7486 6202 0 0 0.00% 0.00%
D 7486 6202 8 8 0.11% 0.13%

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 1 162 59966 374.62 792 780 158.0
A 1 178 27623 169.9 792 780 158.0
A 1 161 23710 145.13 792 780 158.0
B 3 64 171484 1127.48 797 779 151.4
B 12 111 17649 111.42 797 779 151.4
B 11 111 15493 97.18 797 779 151.4
C 3 233 462238 2593.83 768 774 177.9
C 13 61 5368 25.82 768 774 177.9
C 3 232 2937 12.16 768 774 177.9
D 13 249 75947 405.09 761 741 185.7
D 2 234 20288 105.29 761 741 185.7
D 13 104 10005 49.9 761 741 185.7

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