ASTROSAT CZTI

Data Quality Report

Orbit 11312

Creation date: 2024-06-27T16:11:08.015844
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_144T01_9000001652_11312cztM0_level2.evt modeM0/AS1A04_144T01_9000001652_11312cztM0_level2_quad_clean.evt
Size (bytes)339,963,84046,157,760
Size324.2 MB 44.0 MB
Events in quadrant A2,558,805275,710
Events in quadrant B2,867,473278,593
Events in quadrant C1,923,792275,605
Events in quadrant D2,642,948254,901

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103460
B0114090
C089070
D0108690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44451052.362205%
B44452485.579303%
C444520.044994%
D44451794.026997%

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 4445 4445 85 85 1.91% 1.91%
B 4445 4445 167 167 3.76% 3.76%
C 4445 4445 0 0 0.00% 0.00%
D 4445 4445 125 125 2.81% 2.81%

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 383604 3673.56 502 491 104.3
A 0 8 131333 1254.61 502 491 104.3
A 1 162 27726 261.15 502 491 104.3
B 4 239 587793 6051.68 499 488 97.0
B 3 64 252671 2598.53 499 488 97.0
B 4 80 25382 256.51 499 488 97.0
C 9 204 6186 49.37 491 493 115.3
C 13 61 3499 26.07 491 493 115.3
C 14 234 2525 17.62 491 493 115.3
D 1 52 423053 3659.14 478 464 115.5
D 10 253 213840 1847.59 478 464 115.5
D 13 104 74666 642.5 478 464 115.5

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