ASTROSAT CZTI

Data Quality Report

Orbit 25369

Creation date: 2024-06-27T19:16:53.745236
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/AS1A09_104T01_9000003710_25369cztM0_level2.evt modeM0/AS1A09_104T01_9000003710_25369cztM0_level2_quad_clean.evt
Size (bytes)516,375,360104,555,520
Size492.5 MB 99.7 MB
Events in quadrant A3,644,756683,614
Events in quadrant B3,436,167689,918
Events in quadrant C3,826,273654,879
Events in quadrant D4,250,315644,384

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152130
B0147130
C0161150
D0175810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7088300.423251%
B7089600.846382%
C70891532.158273%
D7089560.789956%

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 8858 7090 0 0 0.00% 0.00%
B 8859 7091 0 0 0.00% 0.00%
C 8859 7091 32 32 0.36% 0.45%
D 8859 7091 19 19 0.21% 0.27%

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 6 16 313147 1810.49 863 845 172.5
A 13 254 11053 59.18 863 845 172.5
A 3 137 8073 41.9 863 845 172.5
B 3 112 26579 154.56 859 836 166.6
B 12 111 20219 116.38 859 836 166.6
B 11 111 17937 102.68 859 836 166.6
C 7 87 440376 2277.68 822 825 193.0
C 14 238 132283 681.19 822 825 193.0
C 3 233 49860 254.09 822 825 193.0
D 8 195 719988 3561.89 830 803 201.9
D 1 52 234989 1159.85 830 803 201.9
D 2 244 103638 509.31 830 803 201.9

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