ASTROSAT CZTI

Data Quality Report

Orbit 16082

Creation date: 2024-06-27T17:17:44.650950
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/AS1T02_110T01_9000002376_16082cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16082cztM0_level2_quad_clean.evt
Size (bytes)434,678,40086,397,120
Size414.5 MB 82.4 MB
Events in quadrant A3,063,159564,618
Events in quadrant B3,390,489560,827
Events in quadrant C3,005,853532,751
Events in quadrant D3,289,999531,946

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129452
B0140031
C0127101
D0137761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61041001.638270%
B6104961.572739%
C6104861.408912%
D6104841.376147%

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 7345 6105 20 20 0.27% 0.33%
B 7345 6105 9 9 0.12% 0.15%
C 7345 6105 0 0 0.00% 0.00%
D 7345 6105 30 30 0.41% 0.49%

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 9 143 89073 573.62 763 747 154.0
A 3 80 16476 102.15 763 747 154.0
A 15 239 11304 68.56 763 747 154.0
B 7 220 186523 1297.74 762 746 143.2
B 0 189 109625 760.57 762 746 143.2
B 0 190 48244 331.8 762 746 143.2
C 14 238 112100 657.09 730 736 169.5
C 3 233 27908 160.33 730 736 169.5
C 10 22 6705 35.22 730 736 169.5
D 5 222 327783 1818.68 746 727 179.8
D 12 218 26351 142.49 746 727 179.8
D 2 234 24313 131.16 746 727 179.8

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