ASTROSAT CZTI

Data Quality Report

Orbit 03221

Creation date: 2024-06-27T14:25:59.802614
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_221T01_9000000438_03221cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03221cztM0_level2_quad_clean.evt
Size (bytes)559,969,92097,977,600
Size534.0 MB 93.4 MB
Events in quadrant A3,717,142606,883
Events in quadrant B4,342,015609,612
Events in quadrant C4,402,340605,876
Events in quadrant D3,954,191588,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168731
B0180280
C0188900
D0177180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80002242.800000%
B80002222.775000%
C80001942.425000%
D80001351.687500%

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 8000 8000 40 40 0.50% 0.50%
B 8000 8000 13 13 0.16% 0.16%
C 8000 8000 61 61 0.76% 0.76%
D 8000 8000 40 40 0.50% 0.50%

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 0 199 142935 757.48 904 881 187.5
A 0 118 47002 245.93 904 881 187.5
A 0 226 27299 140.87 904 881 187.5
B 15 204 568475 3197.34 917 893 177.5
B 2 249 77459 431.32 917 893 177.5
B 1 223 71306 396.66 917 893 177.5
C 1 192 853335 4162.31 877 881 204.8
C 6 80 66337 319.6 877 881 204.8
C 14 223 43851 209.81 877 881 204.8
D 13 223 255966 1194.0 877 848 213.7
D 13 120 163382 760.69 877 848 213.7
D 5 233 91790 425.62 877 848 213.7

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