ASTROSAT CZTI

Data Quality Report

Orbit 14733

Creation date: 2024-06-27T16:59:13.604437
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/AS1G08_081T01_9000002178_14733cztM0_level2.evt modeM0/AS1G08_081T01_9000002178_14733cztM0_level2_quad_clean.evt
Size (bytes)505,428,48067,527,360
Size482.0 MB 64.4 MB
Events in quadrant A4,254,781407,911
Events in quadrant B3,746,970402,738
Events in quadrant C3,529,931392,620
Events in quadrant D3,343,175396,870

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169093
B0152472
C0143822
D0139192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63751552.431373%
B63751221.913725%
C6375901.411765%
D6375881.380392%

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 7626 6376 22 22 0.29% 0.35%
B 7626 6376 7 7 0.09% 0.11%
C 7626 6376 0 0 0.00% 0.00%
D 7626 6376 9 9 0.12% 0.14%

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 8 15 814897 4604.95 882 865 176.8
A 12 189 42459 235.3 882 865 176.8
A 0 226 7914 39.88 882 865 176.8
B 0 230 178699 1096.22 870 852 162.2
B 0 205 60835 369.73 870 852 162.2
B 10 249 44336 268.03 870 852 162.2
C 3 233 229564 1190.3 844 852 192.1
C 13 61 6073 27.17 844 852 192.1
C 4 254 4489 18.93 844 852 192.1
D 12 16 28816 133.88 852 832 209.0
D 2 234 23737 109.58 852 832 209.0
D 10 70 20533 94.25 852 832 209.0

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