ASTROSAT CZTI

Data Quality Report

Orbit 33214

Creation date: 2024-06-27T20:46:10.774227
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/AS1T04_066T01_9000004772_33214cztM0_level2.evt modeM0/AS1T04_066T01_9000004772_33214cztM0_level2_quad_clean.evt
Size (bytes)1,111,587,840132,099,840
Size1.0 GB 126.0 MB
Events in quadrant A5,448,717833,100
Events in quadrant B8,910,081799,714
Events in quadrant C5,623,413824,066
Events in quadrant D12,913,616753,318

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237264
B0342093
C0241433
D0463803

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02360
B02360
C02360
D02360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11411140.122689%
B114117306.397336%
C114111060.928928%
D1141111059.683639%

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 15529 11414 0 0 0.00% 0.00%
B 15529 11414 454 454 2.92% 3.98%
C 15529 11414 83 83 0.53% 0.73%
D 15529 11414 844 844 5.43% 7.39%

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 15 47 163613 599.04 1355 1326 270.9
A 13 6 28951 101.97 1355 1326 270.9
A 13 254 21821 75.65 1355 1326 270.9
B 4 170 1617884 6457.28 1315 1280 250.4
B 5 172 968489 3863.37 1315 1280 250.4
B 0 219 268984 1069.3 1315 1280 250.4
C 0 10 399452 1307.04 1313 1322 304.6
C 14 67 34569 109.15 1313 1322 304.6
C 1 23 20430 62.73 1313 1322 304.6
D 8 195 5491221 15899.08 1274 1250 345.3
D 2 250 693982 2006.17 1274 1250 345.3
D 13 249 381699 1101.79 1274 1250 345.3

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