ASTROSAT CZTI

Data Quality Report

Orbit 03048

Creation date: 2024-06-27T14:23:56.288071
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/AS1G05_237T02_9000000422_03048cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03048cztM0_level2_quad_clean.evt
Size (bytes)794,445,120202,302,720
Size757.6 MB 192.9 MB
Events in quadrant A6,108,1321,260,107
Events in quadrant B5,643,8541,289,031
Events in quadrant C5,487,1111,341,109
Events in quadrant D5,909,5771,309,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0750
B0750
C0750
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288775
B0273814
C0272384
D0284814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134331761.310206%
B13433240.178664%
C13433180.133998%
D13433390.290330%

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 19898 13436 147 147 0.74% 1.09%
B 19898 13436 11 11 0.06% 0.08%
C 19898 13436 13 13 0.07% 0.10%
D 19898 13436 30 30 0.15% 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 14 249 551989 2026.44 1350 1318 271.7
A 0 50 274996 1007.12 1350 1318 271.7
A 3 1 48607 174.02 1350 1318 271.7
B 0 219 76198 280.67 1395 1362 266.6
B 0 230 54085 197.74 1395 1362 266.6
B 2 249 42870 155.68 1395 1362 266.6
C 6 80 95762 307.48 1342 1347 307.1
C 1 16 35440 111.03 1342 1347 307.1
C 15 208 28860 89.6 1342 1347 307.1
D 2 152 269865 805.1 1322 1287 333.6
D 13 114 168063 499.94 1322 1287 333.6
D 10 213 129355 383.9 1322 1287 333.6

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