ASTROSAT CZTI

Data Quality Report

Orbit 05907

Creation date: 2024-06-27T15:00:42.113157
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/AS1A02_174T01_9000000766_05907cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05907cztM0_level2_quad_clean.evt
Size (bytes)479,695,68058,106,880
Size457.5 MB 55.4 MB
Events in quadrant A3,030,429329,393
Events in quadrant B3,364,511331,533
Events in quadrant C3,768,493324,763
Events in quadrant D3,909,783307,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137603
B0144432
C0158132
D0163362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6688580.867225%
B66881241.854067%
C66881342.003589%
D66881662.482057%

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 7758 6689 0 0 0.00% 0.00%
B 7758 6689 28 28 0.36% 0.42%
C 7758 6689 75 75 0.97% 1.12%
D 7758 6689 93 93 1.20% 1.39%

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 0 226 7543 41.95 786 765 161.6
A 12 194 7468 41.48 786 765 161.6
A 7 16 5255 27.79 786 765 161.6
B 15 255 167852 1094.4 796 779 152.7
B 4 80 40093 257.52 796 779 152.7
B 0 214 28471 181.39 796 779 152.7
C 9 247 795103 4484.5 760 763 177.1
C 13 61 5985 29.48 760 763 177.1
C 12 4 5041 24.15 760 763 177.1
D 2 152 803513 4317.89 752 729 185.9
D 2 206 64558 343.31 752 729 185.9
D 2 63 40974 216.46 752 729 185.9

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