ASTROSAT CZTI

Data Quality Report

Orbit 14305

Creation date: 2024-06-27T16:53:09.813273
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_231T01_9000002106_14305cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14305cztM0_level2_quad_clean.evt
Size (bytes)1,544,345,280297,794,880
Size1.4 GB 284.0 MB
Events in quadrant A10,153,0621,921,787
Events in quadrant B11,673,0751,932,827
Events in quadrant C11,469,0121,927,765
Events in quadrant D12,122,8991,856,796

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04100
B04100
C04100
D04100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0421454
B0472254
C0465314
D0488104

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490
B0490
C0490
D0490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200481390.693336%
B200484392.189745%
C200481550.773144%
D200484932.459098%

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 24954 20053 2 2 0.01% 0.01%
B 24954 20053 167 167 0.67% 0.83%
C 24954 20053 0 0 0.00% 0.00%
D 24954 20052 378 378 1.51% 1.89%

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 12 189 175319 345.62 2536 2489 500.1
A 8 15 114253 223.51 2536 2489 500.1
A 0 23 86199 167.4 2536 2489 500.1
B 0 229 791030 1715.22 2511 2452 459.8
B 10 245 470009 1016.97 2511 2452 459.8
B 10 244 149988 320.9 2511 2452 459.8
C 3 233 1807414 3250.26 2474 2489 555.3
C 13 61 18012 27.95 2474 2489 555.3
C 14 234 9491 12.61 2474 2489 555.3
D 5 222 1329944 2301.71 2462 2406 576.8
D 12 110 530321 915.31 2462 2406 576.8
D 2 14 424203 731.32 2462 2406 576.8

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