ASTROSAT CZTI

Data Quality Report

Orbit 20231213_A13_008T08_9000005998_level2

Creation date: 2023-12-18T12:33:26.183874
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_008T08_9000005998cztM0_level2.fits modeM0/AS1A13_008T08_9000005998cztM0_level2_quad_clean.evt
Size (bytes)1,191,882,2401,270,549,440
Size1.1 GB 1.2 GB
Events in quadrant A7,244,7167,867,894
Events in quadrant B6,954,9147,912,182
Events in quadrant C7,098,0647,535,290
Events in quadrant D5,527,9565,909,083

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027440
B027440
C027440
D027440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04060230
B03013270
C03141980
D05278960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01870
B01870
C01870
D01870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13508833082.448774%
B13508930502.257771%
C13508939112.895128%
D1350902630219.469983%

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 158204 135077 0 0 0.00% 0.00%
B 158205 135078 0 0 0.00% 0.00%
C 158205 135074 0 0 0.00% 0.00%
D 158205 134135 0 0 0.00% 0.00%

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 7 110 6027 8.94 1885 1757 477.9
A 0 29 5689 8.23 1885 1757 477.9
A 15 236 5680 8.21 1885 1757 477.9
B 2 9 6501 13.03 1846 1753 364.5
B 2 8 5109 9.21 1846 1753 364.5
B 3 17 4927 8.71 1846 1753 364.5
C 3 202 5569 7.9 1879 1742 484.5
C 3 203 5317 7.38 1879 1742 484.5
C 1 81 5249 7.24 1879 1742 484.5
D 10 189 4086 5.91 1591 1437 448.3
D 3 14 4063 5.86 1591 1437 448.3
D 7 3 3966 5.64 1591 1437 448.3

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