ASTROSAT CZTI

Data Quality Report

Orbit 11280

Creation date: 2024-06-27T16:10:40.154466
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/AS1A04_044T01_9000001648_11280cztM0_level2.evt modeM0/AS1A04_044T01_9000001648_11280cztM0_level2_quad_clean.evt
Size (bytes)496,880,64045,400,320
Size473.9 MB 43.3 MB
Events in quadrant A2,754,517278,674
Events in quadrant B3,631,505277,574
Events in quadrant C1,987,648276,012
Events in quadrant D6,363,009218,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110370
B0137980
C091950
D0221560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4592831.807491%
B45924239.211672%
C459200.000000%
D4592117825.653310%

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 4592 4592 41 41 0.89% 0.89%
B 4592 4592 262 262 5.71% 5.71%
C 4592 4592 0 0 0.00% 0.00%
D 4592 4591 1034 1034 22.52% 22.52%

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 404290 3763.15 521 509 107.3
A 13 251 202264 1880.31 521 509 107.3
A 8 15 69364 641.71 521 509 107.3
B 4 239 952382 9722.87 507 494 97.9
B 3 64 407283 4155.07 507 494 97.9
B 11 51 77826 789.89 507 494 97.9
C 13 61 3686 26.57 508 510 119.5
C 9 204 3115 21.79 508 510 119.5
C 14 234 1845 11.17 508 510 119.5
D 13 152 1978613 17688.79 459 446 111.8
D 7 80 985585 8809.12 459 446 111.8
D 1 52 820371 7331.78 459 446 111.8

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