ASTROSAT CZTI

Data Quality Report

Orbit 18392

Creation date: 2024-06-27T17:49:14.630713
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/AS1A05_094T01_9000002726_18392cztM0_level2.evt modeM0/AS1A05_094T01_9000002726_18392cztM0_level2_quad_clean.evt
Size (bytes)443,249,28095,169,600
Size422.7 MB 90.8 MB
Events in quadrant A3,294,289621,754
Events in quadrant B3,250,063626,311
Events in quadrant C3,145,052594,955
Events in quadrant D3,285,842579,096

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142562
B0140442
C0136902
D0143162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6597610.924663%
B6597620.939821%
C6597731.106564%
D6597721.091405%

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 7592 6598 13 13 0.17% 0.20%
B 7592 6598 29 29 0.38% 0.44%
C 7592 6598 0 0 0.00% 0.00%
D 7592 6598 31 31 0.41% 0.47%

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 15 174 177697 1092.41 802 786 161.9
A 4 2 21495 127.88 802 786 161.9
A 0 226 7028 38.54 802 786 161.9
B 10 245 105265 686.23 801 780 152.3
B 12 111 17622 110.61 801 780 152.3
B 11 111 15099 94.04 801 780 152.3
C 14 238 119105 651.38 772 777 181.7
C 13 61 5510 26.05 772 777 181.7
C 5 252 5328 25.05 772 777 181.7
D 1 52 183359 962.38 781 759 189.7
D 8 0 72026 375.61 781 759 189.7
D 2 234 27333 140.06 781 759 189.7

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