ASTROSAT CZTI

Data Quality Report

Orbit 32005

Creation date: 2024-06-27T20:35:08.775403
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/AS1C06_010T03_9000004676_32005cztM0_level2.evt modeM0/AS1C06_010T03_9000004676_32005cztM0_level2_quad_clean.evt
Size (bytes)552,104,640133,845,120
Size526.5 MB 127.6 MB
Events in quadrant A3,113,871954,812
Events in quadrant B5,095,681930,538
Events in quadrant C3,950,009869,073
Events in quadrant D4,147,506872,950

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127441
B0193011
C0156461
D0162751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6109841.375020%
B61092173.552136%
C61092033.322966%
D61092343.830414%

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 7374 6109 0 0 0.00% 0.00%
B 7374 6109 34 34 0.46% 0.56%
C 7374 6109 10 10 0.14% 0.16%
D 7374 6109 161 161 2.18% 2.64%

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 13 254 11144 65.4 806 793 158.3
A 3 137 7098 39.84 806 793 158.3
A 0 226 6868 38.38 806 793 158.3
B 6 159 1639008 11279.14 780 761 145.2
B 10 245 207083 1420.5 780 761 145.2
B 0 190 97204 664.0 780 761 145.2
C 3 233 625112 3699.06 740 744 168.8
C 0 10 261301 1543.67 740 744 168.8
C 14 238 126333 744.05 740 744 168.8
D 8 195 633793 3591.01 761 741 176.3
D 12 218 258725 1463.42 761 741 176.3
D 13 249 248371 1404.69 761 741 176.3

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