ASTROSAT CZTI

Data Quality Report

Orbit 25363

Creation date: 2024-06-27T19:16:50.413042
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/AS1A09_104T01_9000003710_25363cztM0_level2.evt modeM0/AS1A09_104T01_9000003710_25363cztM0_level2_quad_clean.evt
Size (bytes)256,570,56041,682,240
Size244.7 MB 39.8 MB
Events in quadrant A2,163,930260,805
Events in quadrant B1,710,580264,699
Events in quadrant C1,672,478251,253
Events in quadrant D1,997,405250,493

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087380
B070120
C069140
D082020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33031123.390857%
B33031113.360581%
C33031203.633061%
D3303992.997275%

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 3913 3303 1 1 0.03% 0.03%
B 3913 3303 0 0 0.00% 0.00%
C 3913 3303 0 0 0.00% 0.00%
D 3913 3303 9 9 0.23% 0.27%

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 6 16 364136 4107.27 433 423 88.6
A 3 1 105420 1185.69 433 423 88.6
A 15 173 21650 239.71 433 423 88.6
B 0 229 20727 243.77 426 415 83.3
B 12 111 10234 117.84 426 415 83.3
B 11 111 8994 102.96 426 415 83.3
C 14 238 65141 668.5 406 408 96.8
C 3 233 20079 203.14 406 408 96.8
C 13 61 2966 26.42 406 408 96.8
D 8 195 369511 3629.4 417 402 101.7
D 1 52 30056 291.58 417 402 101.7
D 7 238 16932 162.54 417 402 101.7

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