ASTROSAT CZTI

Data Quality Report

Orbit 09192

Creation date: 2024-06-27T15:42:32.332715
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/AS1C02_041T02_9000001282_09192cztM0_level2.evt modeM0/AS1C02_041T02_9000001282_09192cztM0_level2_quad_clean.evt
Size (bytes)303,071,04049,098,240
Size289.0 MB 46.8 MB
Events in quadrant A2,411,245294,445
Events in quadrant B2,114,950304,924
Events in quadrant C1,985,545299,498
Events in quadrant D2,372,213283,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099271
B089621
C087021
D098851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4319250.578838%
B431970.162075%
C431940.092614%
D4319481.111368%

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 4319 4319 15 15 0.35% 0.35%
B 4319 4319 0 0 0.00% 0.00%
C 4319 4319 0 0 0.00% 0.00%
D 4319 4319 59 59 1.37% 1.37%

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 8 5 250262 2359.7 518 509 105.8
A 1 162 67743 635.24 518 509 105.8
A 15 223 18230 167.43 518 509 105.8
B 0 187 22143 218.15 523 512 99.2
B 0 197 17705 173.39 523 512 99.2
B 8 234 14919 145.29 523 512 99.2
C 13 61 3917 28.84 508 512 118.1
C 8 222 2284 15.01 508 512 118.1
C 14 67 1300 6.67 508 512 118.1
D 1 52 235872 1757.27 498 488 133.9
D 7 71 108823 808.78 498 488 133.9
D 12 233 40033 295.22 498 488 133.9

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