ASTROSAT CZTI

Data Quality Report

Orbit 05994

Creation date: 2024-06-27T15:01:35.727156
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/AS1G06_086T01_9000000774_05994cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05994cztM0_level2_quad_clean.evt
Size (bytes)420,724,800122,578,560
Size401.2 MB 116.9 MB
Events in quadrant A3,017,705811,590
Events in quadrant B3,289,120829,994
Events in quadrant C2,966,589817,334
Events in quadrant D3,001,981776,378

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140803
B0146322
C0139542
D0142212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6848550.803154%
B6848981.431075%
C6848300.438084%
D6848250.365070%

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 7848 6849 8 8 0.10% 0.12%
B 7848 6849 35 35 0.45% 0.51%
C 7848 6849 0 0 0.00% 0.00%
D 7848 6849 6 6 0.08% 0.09%

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 7 16 26922 170.72 762 744 153.3
A 10 253 19030 119.25 762 744 153.3
A 14 238 17676 110.42 762 744 153.3
B 15 85 98450 660.91 778 761 147.8
B 4 48 52788 351.99 778 761 147.8
B 0 214 49803 331.79 778 761 147.8
C 1 16 23239 129.65 750 753 173.4
C 1 241 9889 52.68 750 753 173.4
C 12 4 6297 31.97 750 753 173.4
D 2 63 41115 225.92 738 713 178.8
D 2 14 40341 221.6 738 713 178.8
D 8 195 24067 130.59 738 713 178.8

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