ASTROSAT CZTI

Data Quality Report

Orbit 48035

Creation date: 2024-09-10T17:35:43.208396
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_053T01_9000006388_48035cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48035cztM0_level2_quad_clean.evt
Size (bytes)987,212,160236,525,760
Size941.5 MB 225.6 MB
Events in quadrant A14,345,6461,544,601
Events in quadrant B6,615,6781,595,311
Events in quadrant C6,542,3251,556,614
Events in quadrant D7,866,6901,418,432

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03020
B03020
C03020
D03020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0534133
B0311170
C0311400
D0348430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A151651881.239697%
B15166770.507715%
C15166240.158249%
D151661480.975867%

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 15165 15165 6 6 0.04% 0.04%
B 15166 15166 9 9 0.06% 0.06%
C 15166 15166 5 5 0.03% 0.03%
D 15166 15166 127 127 0.84% 0.84%

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 10 83 8066770 24131.87 1611 1575 334.2
A 13 254 27219 76.73 1611 1575 334.2
A 0 31 26201 73.68 1611 1575 334.2
B 7 221 116945 362.47 1613 1559 318.3
B 0 198 53764 163.99 1613 1559 318.3
B 12 111 41092 124.19 1613 1559 318.3
C 0 207 156035 411.74 1606 1613 375.1
C 3 233 50955 131.56 1606 1613 375.1
C 14 67 38103 97.29 1606 1613 375.1
D 2 165 697428 1744.43 1600 1552 398.9
D 11 224 282089 703.25 1600 1552 398.9
D 2 249 270750 674.83 1600 1552 398.9

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