ASTROSAT CZTI

Data Quality Report

Orbit 29849

Creation date: 2024-06-27T20:08:18.100811
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/AS1T03_291T01_9000004278_29849cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29849cztM0_level2_quad_clean.evt
Size (bytes)536,495,04092,096,640
Size511.6 MB 87.8 MB
Events in quadrant A3,400,779610,157
Events in quadrant B5,259,553610,769
Events in quadrant C3,635,130569,119
Events in quadrant D3,526,277559,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139412
B0195363
C0147622
D0144682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283941.496101%
B62821412.244508%
C62831402.228235%
D6283370.588891%

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 7503 6284 9 9 0.12% 0.14%
B 7502 6283 0 0 0.00% 0.00%
C 7503 6284 5 5 0.07% 0.08%
D 7503 6284 6 6 0.08% 0.10%

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 0 13 97424 571.29 853 839 169.1
A 13 254 12883 71.24 853 839 169.1
A 3 137 7674 40.43 853 839 169.1
B 6 159 1898552 12151.38 847 830 156.2
B 0 190 29866 185.92 847 830 156.2
B 12 111 18205 111.25 847 830 156.2
C 3 233 345388 1875.77 800 807 183.7
C 14 238 132676 717.85 800 807 183.7
C 10 22 17617 91.51 800 807 183.7
D 8 195 296768 1571.34 810 792 188.4
D 13 153 82329 432.88 810 792 188.4
D 2 234 26485 136.4 810 792 188.4

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