ASTROSAT CZTI

Data Quality Report

Orbit 08060

Creation date: 2024-06-27T15:27:25.452254
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/AS1A02_055T01_9000001114_08060cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08060cztM0_level2_quad_clean.evt
Size (bytes)839,856,960131,627,520
Size801.0 MB 125.5 MB
Events in quadrant A5,854,720795,396
Events in quadrant B6,562,953808,576
Events in quadrant C5,510,336819,299
Events in quadrant D6,728,893767,459

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250753
B0271002
C0240112
D0278332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02320
B02320
C02320
D02320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115031711.486569%
B115033232.807963%
C115031010.878032%
D115034373.799009%

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 13888 11505 43 43 0.31% 0.37%
B 13888 11505 119 119 0.86% 1.03%
C 13888 11505 0 0 0.00% 0.00%
D 13888 11505 269 269 1.94% 2.34%

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 4 2 354004 1224.67 1429 1400 287.9
A 0 226 13388 41.64 1429 1400 287.9
A 12 194 12796 39.58 1429 1400 287.9
B 4 239 570432 2130.32 1431 1399 267.1
B 5 250 129385 479.15 1431 1399 267.1
B 4 81 67296 246.7 1431 1399 267.1
C 1 16 34156 102.25 1403 1411 320.2
C 13 61 10834 29.43 1403 1411 320.2
C 8 222 4543 9.78 1403 1411 320.2
D 1 83 709990 1945.55 1372 1343 364.2
D 1 7 273915 748.33 1372 1343 364.2
D 4 95 190752 520.01 1372 1343 364.2

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