ASTROSAT CZTI

Data Quality Report

Orbit 46312

Creation date: 2024-06-27T23:21:34.199085
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/AS1T05_200T01_9000006196_46312cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46312cztM0_level2_quad_clean.evt
Size (bytes)466,516,800107,795,520
Size444.9 MB 102.8 MB
Events in quadrant A6,013,571711,559
Events in quadrant B4,130,816738,557
Events in quadrant C3,107,102707,349
Events in quadrant D3,502,895644,388

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219092
B0164862
C0139682
D0151172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66282033.062764%
B66282363.560652%
C6628861.297526%
D66281211.825588%

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 7638 6629 3 3 0.04% 0.05%
B 7638 6629 82 82 1.07% 1.24%
C 7638 6629 20 20 0.26% 0.30%
D 7638 6629 45 45 0.59% 0.68%

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 3080033 19911.5 749 732 154.6
A 13 254 11589 70.2 749 732 154.6
A 13 248 10363 62.27 749 732 154.6
B 3 112 393746 2661.75 751 730 147.7
B 5 172 237323 1602.36 751 730 147.7
B 4 171 215415 1453.98 751 730 147.7
C 12 2 90708 508.19 747 749 177.0
C 1 3 71072 397.26 747 749 177.0
C 11 16 18271 98.98 747 749 177.0
D 1 52 467803 2511.63 740 716 186.0
D 13 138 73980 393.96 740 716 186.0
D 13 171 51900 275.23 740 716 186.0

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