ASTROSAT CZTI

Data Quality Report

Orbit 29625

Creation date: 2024-06-27T20:06:10.459387
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/AS1T03_286T01_9000004268_29625cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29625cztM0_level2_quad_clean.evt
Size (bytes)475,813,44097,266,240
Size453.8 MB 92.8 MB
Events in quadrant A2,772,901645,783
Events in quadrant B2,865,089659,550
Events in quadrant C3,032,039631,057
Events in quadrant D5,332,625590,124

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123281
B0125691
C0128951
D0197565

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5998440.733578%
B5999540.900150%
C59991191.983664%
D599866511.087029%

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 6898 5998 0 0 0.00% 0.00%
B 6899 5999 0 0 0.00% 0.00%
C 6899 5999 13 13 0.19% 0.22%
D 6897 5997 542 542 7.86% 9.04%

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 10095 65.63 716 701 143.1
A 3 137 7246 45.73 716 701 143.1
A 0 226 5985 36.92 716 701 143.1
B 0 229 36507 260.28 713 695 137.6
B 0 190 20851 146.49 713 695 137.6
B 12 111 16777 116.88 713 695 137.6
C 14 238 125561 768.5 693 698 162.5
C 3 233 77650 473.62 693 698 162.5
C 10 22 72830 443.95 693 698 162.5
D 7 80 1218909 7625.96 671 653 159.8
D 7 238 817706 5114.53 671 653 159.8
D 8 195 488053 3050.99 671 653 159.8

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