ASTROSAT CZTI

Data Quality Report

Orbit 06670

Creation date: 2024-06-27T15:10:19.536717
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/AS1G06_135T01_9000000908_06670cztM0_level2.evt modeM0/AS1G06_135T01_9000000908_06670cztM0_level2_quad_clean.evt
Size (bytes)142,223,04021,513,600
Size135.6 MB 20.5 MB
Events in quadrant A566,213156,354
Events in quadrant B616,308159,080
Events in quadrant C530,213153,611
Events in quadrant D2,506,13586,876

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025300
B026330
C025230
D083040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125500.000000%
B125500.000000%
C125510.079681%
D125580363.984064%

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 1255 1255 0 0 0.00% 0.00%
B 1255 1255 0 0 0.00% 0.00%
C 1255 1255 0 0 0.00% 0.00%
D 1255 1255 701 701 55.86% 55.86%

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 15 4469 138.3 143 141 31.3
A 3 1 3806 117.12 143 141 31.3
A 4 2 1819 53.62 143 141 31.3
B 0 228 17777 577.8 144 141 30.5
B 4 80 15927 517.19 144 141 30.5
B 0 214 11358 367.5 144 141 30.5
C 9 247 5563 165.35 133 134 32.8
C 1 3 3408 99.72 133 134 32.8
C 13 61 1116 29.91 133 134 32.8
D 2 33 2085359 89505.07 86 82 23.3
D 2 63 51223 2195.09 86 82 23.3
D 12 221 13183 562.33 86 82 23.3

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