ASTROSAT CZTI

Data Quality Report

Orbit 04666

Creation date: 2024-06-27T14:45:21.698068
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/AS1G05_167T01_9000000584_04666cztM0_level2.evt modeM0/AS1G05_167T01_9000000584_04666cztM0_level2_quad_clean.evt
Size (bytes)328,734,72014,276,160
Size313.5 MB 13.6 MB
Events in quadrant A1,116,01671,792
Events in quadrant B1,210,56772,453
Events in quadrant C1,101,04368,863
Events in quadrant D6,350,73332,655

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051770
B052570
C051820
D0205020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A258440.154799%
B258420.077399%
C258420.077399%
D2584222486.068111%

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 2584 2584 0 0 0.00% 0.00%
B 2584 2584 0 0 0.00% 0.00%
C 2584 2584 0 0 0.00% 0.00%
D 2584 2584 2083 2083 80.61% 80.61%

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 14 6529 101.18 288 282 61.7
A 12 194 2916 42.66 288 282 61.7
A 0 226 2897 42.35 288 282 61.7
B 15 204 45689 781.97 289 283 58.1
B 14 167 35919 613.71 289 283 58.1
B 12 111 5479 89.48 289 283 58.1
C 8 128 8643 127.04 275 276 65.9
C 9 54 4987 71.53 275 276 65.9
C 7 110 4175 59.2 275 276 65.9
D 8 112 5481973 193207.39 109 105 28.4
D 9 82 373029 13143.63 109 105 28.4
D 10 15 34576 1214.92 109 105 28.4

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