ASTROSAT CZTI

Data Quality Report

Orbit 30070

Creation date: 2024-06-27T20:10:34.468977
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/AS1A10_071T06_9000004324_30070cztM0_level2.evt modeM0/AS1A10_071T06_9000004324_30070cztM0_level2_quad_clean.evt
Size (bytes)956,741,760164,096,640
Size912.4 MB 156.5 MB
Events in quadrant A6,029,1121,054,110
Events in quadrant B9,374,2621,049,945
Events in quadrant C6,262,6771,004,130
Events in quadrant D6,469,4841,003,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259682
B0377752
C0262972
D0270292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124153763.028594%
B124165944.784149%
C124165264.236469%
D124163242.609536%

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 12725 12418 0 0 0.00% 0.00%
B 12726 12419 0 0 0.00% 0.00%
C 12726 12419 0 0 0.00% 0.00%
D 12726 12419 26 26 0.20% 0.21%

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 13 254 20142 59.07 1555 1525 315.2
A 2 79 17863 51.84 1555 1525 315.2
A 8 192 16519 47.57 1555 1525 315.2
B 6 159 3373494 11528.46 1520 1479 292.5
B 12 111 38013 124.9 1520 1479 292.5
B 11 111 34869 114.16 1520 1479 292.5
C 14 238 249281 703.66 1483 1491 352.1
C 3 233 152646 429.24 1483 1491 352.1
C 2 114 29797 80.38 1483 1491 352.1
D 8 195 245899 677.82 1507 1475 360.6
D 12 33 155438 426.96 1507 1475 360.6
D 2 250 136807 375.29 1507 1475 360.6

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