ASTROSAT CZTI

Data Quality Report

Orbit 39028

Creation date: 2024-06-27T21:59:18.605129
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/AS1A12_042T01_9000005428_39028cztM0_level2.fits modeM0/AS1A12_042T01_9000005428_39028cztM0_level2_quad_clean.evt
Size (bytes)22,553,2805,362,560
Size21.5 MB 5.1 MB
Events in quadrant A350,42729,516
Events in quadrant B138,07637,149
Events in quadrant C150,47134,833
Events in quadrant D169,10132,221

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012211
B05920
C06010
D06800

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2966120.608108%
B29600.000000%
C29610.337838%
D29641.351351%

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 296 296 55 55 18.58% 18.58%
B 296 296 0 0 0.00% 0.00%
C 296 296 0 0 0.00% 0.00%
D 296 296 3 3 1.01% 1.01%

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 15 222 208101 24888.03 31 30 8.4
A 10 83 19886 2375.04 31 30 8.4
A 13 248 1397 163.51 31 30 8.4
B 12 111 784 85.29 34 33 8.8
B 11 111 684 73.93 34 33 8.8
B 14 111 638 68.71 34 33 8.8
C 15 214 11874 1156.73 35 35 10.2
C 10 20 720 66.93 35 35 10.2
C 13 61 224 18.47 35 35 10.2
D 12 227 14647 1423.45 34 33 10.3
D 1 47 9407 913.06 34 33 10.3
D 12 235 7182 696.34 34 33 10.3

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