ASTROSAT CZTI

Data Quality Report

Orbit 07037

Creation date: 2024-06-27T15:14:46.912238
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_029T01_9000000964_07037cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07037cztM0_level2_quad_clean.evt
Size (bytes)472,691,52095,817,600
Size450.8 MB 91.4 MB
Events in quadrant A3,136,014628,466
Events in quadrant B3,294,246630,280
Events in quadrant C2,980,146626,415
Events in quadrant D4,476,138576,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133402
B0136241
C0129621
D0171311

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63121602.534854%
B63122193.469582%
C6312971.536755%
D63124697.430292%

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 6992 6313 20 20 0.29% 0.32%
B 6992 6313 58 58 0.83% 0.92%
C 6992 6313 0 0 0.00% 0.00%
D 6992 6313 332 332 4.75% 5.26%

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 15 234 130862 810.58 779 764 160.5
A 0 226 7418 41.46 779 764 160.5
A 12 194 6964 38.63 779 764 160.5
B 0 228 147173 981.07 779 762 149.2
B 4 80 57754 381.89 779 762 149.2
B 0 219 33481 219.24 779 762 149.2
C 1 16 29763 163.73 756 763 177.1
C 13 61 5872 28.84 756 763 177.1
C 12 4 2457 9.56 756 763 177.1
D 12 233 796447 4318.87 742 721 184.2
D 2 216 395957 2145.18 742 721 184.2
D 8 195 267598 1448.5 742 721 184.2

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