ASTROSAT CZTI

Data Quality Report

Orbit 09734

Creation date: 2024-06-27T15:50:01.291893
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/AS1A03_119T01_9000001388_09734cztM0_level2.evt modeM0/AS1A03_119T01_9000001388_09734cztM0_level2_quad_clean.evt
Size (bytes)636,212,160122,777,280
Size606.7 MB 117.1 MB
Events in quadrant A4,475,991780,620
Events in quadrant B4,397,713783,751
Events in quadrant C4,388,170779,029
Events in quadrant D5,335,982692,731

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0160
C0162
D0162

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268846532
B0267076774
C0266606417
D03311610406

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026559
B026650
C026563
D026569

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9921810.816450%
B9788830.847977%
C9961650.652545%
D95073874.070685%

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 14570 11601 2 2 0.01% 0.02%
B 14569 11443 0 0 0.00% 0.00%
C 14567 11580 0 0 0.00% 0.00%
D 14555 11268 204 204 1.40% 1.81%

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 15 239 36564 150.21 1148 1123 235.9
A 14 111 19553 78.11 1148 1123 235.9
A 0 226 10597 40.15 1148 1123 235.9
B 12 111 25612 112.0 1132 1103 218.8
B 11 111 21203 91.86 1132 1103 218.8
B 14 111 16498 70.35 1132 1103 218.8
C 13 61 8212 27.05 1122 1131 261.7
C 14 234 5407 16.34 1122 1131 261.7
C 9 237 4251 11.92 1122 1131 261.7
D 1 52 1290076 4680.92 1055 1033 275.4
D 2 234 33080 116.37 1055 1033 275.4
D 14 226 10680 35.03 1055 1033 275.4

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