ASTROSAT CZTI

Data Quality Report

Orbit 48391

Creation date: 2024-09-09T16:23:24.563306
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/AS1A13_029T01_9000006426_48391cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48391cztM0_level2_quad_clean.evt
Size (bytes)498,781,440109,543,680
Size475.7 MB 104.5 MB
Events in quadrant A7,489,018710,778
Events in quadrant B4,069,275736,542
Events in quadrant C3,020,309728,746
Events in quadrant D3,351,874662,638

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276613
B0165941
C0140951
D0148311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68674206.116208%
B68683074.470006%
C6868691.004659%
D68681121.630751%

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 7727 6869 114 114 1.48% 1.66%
B 7728 6870 128 128 1.66% 1.86%
C 7728 6870 0 0 0.00% 0.00%
D 7728 6870 15 15 0.19% 0.22%

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 10 83 4162374 25871.28 765 748 160.9
A 13 248 359696 2231.45 765 748 160.9
A 13 254 13658 80.26 765 748 160.9
B 12 16 684003 4458.4 765 739 153.3
B 5 255 123694 802.3 765 739 153.3
B 4 21 105782 685.42 765 739 153.3
C 15 208 20204 107.45 762 767 180.9
C 3 233 17404 91.97 762 767 180.9
C 1 3 11839 61.21 762 767 180.9
D 2 249 177086 913.7 766 742 193.0
D 5 32 82416 423.18 766 742 193.0
D 2 165 61887 316.81 766 742 193.0

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