ASTROSAT CZTI

Data Quality Report

Orbit 17699

Creation date: 2024-06-27T17:39:37.447323
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/AS1A05_084T06_9000002626_17699cztM0_level2.evt modeM0/AS1A05_084T06_9000002626_17699cztM0_level2_quad_clean.evt
Size (bytes)132,307,20038,813,760
Size126.2 MB 37.0 MB
Events in quadrant A949,678263,537
Events in quadrant B1,031,462266,403
Events in quadrant C974,082254,165
Events in quadrant D915,400247,937

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041531
B043311
C041341
D041301

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1964291.476578%
B1964371.883910%
C1964331.680244%
D1964281.425662%

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 2949 1965 0 0 0.00% 0.00%
B 2949 1965 0 0 0.00% 0.00%
C 2949 1965 0 0 0.00% 0.00%
D 2949 1965 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 15 174 7835 150.0 245 240 50.6
A 0 226 2159 37.9 245 240 50.6
A 3 137 1881 32.41 245 240 50.6
B 10 245 40571 837.78 245 240 48.1
B 0 189 9485 192.04 245 240 48.1
B 0 244 7477 150.33 245 240 48.1
C 14 238 35809 634.1 230 232 56.1
C 3 233 27155 479.85 230 232 56.1
C 5 218 9269 161.07 230 232 56.1
D 7 38 21190 365.01 232 225 57.4
D 2 234 7533 127.23 232 225 57.4
D 11 241 5216 86.9 232 225 57.4

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