ASTROSAT CZTI

Data Quality Report

Orbit 46675

Creation date: 2024-06-27T23:26:10.256519
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/AS1A13_092T16_9000006250_46675cztM0_level2.fits modeM0/AS1A13_092T16_9000006250_46675cztM0_level2_quad_clean.evt
Size (bytes)14,287,6801,336,320
Size13.6 MB 1.3 MB
Events in quadrant A281,0853,585
Events in quadrant B69,4276,646
Events in quadrant C59,3786,454
Events in quadrant D103,8165,509

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09320
B03090
C02940
D04200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1464631.506849%
B14610.684932%
C14600.000000%
D14600.000000%

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 146 146 59 59 40.41% 40.41%
B 146 146 0 0 0.00% 0.00%
C 146 146 0 0 0.00% 0.00%
D 146 146 0 0 0.00% 0.00%

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 15 235 154494 33023.82 13 13 4.7
A 10 83 69407 14834.54 13 13 4.7
A 3 7 2659 565.64 13 13 4.7
B 4 171 7808 1587.98 14 14 4.9
B 5 32 561 111.45 14 14 4.9
B 5 172 553 109.82 14 14 4.9
C 12 250 1474 282.94 14 14 5.2
C 14 67 123 21.12 14 14 5.2
C 13 61 92 15.12 14 14 5.2
D 1 52 11773 2171.22 14 13 5.4
D 12 128 11437 2109.19 14 13 5.4
D 13 169 9851 1816.37 14 13 5.4

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