ASTROSAT CZTI

Data Quality Report

Orbit 09025

Creation date: 2024-06-27T15:40:13.018607
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/AS1G07_029T02_9000001256_09025cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09025cztM0_level2_quad_clean.evt
Size (bytes)966,798,720164,203,200
Size922.0 MB 156.6 MB
Events in quadrant A8,039,1821,022,860
Events in quadrant B6,173,8541,046,984
Events in quadrant C5,656,3551,031,724
Events in quadrant D8,540,115981,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324104
B0271173
C0261323
D0345335

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128653042.363000%
B128651120.870579%
C12865470.365332%
D128645073.941231%

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 14645 12868 132 132 0.90% 1.03%
B 14645 12867 15 15 0.10% 0.12%
C 14645 12868 0 0 0.00% 0.00%
D 14645 12868 304 304 2.08% 2.36%

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 5 1956456 6474.84 1475 1441 301.9
A 13 251 167822 551.04 1475 1441 301.9
A 1 162 131672 431.31 1475 1441 301.9
B 6 51 99291 342.84 1496 1457 285.4
B 4 48 97647 337.08 1496 1457 285.4
B 0 197 42956 145.42 1496 1457 285.4
C 13 61 10996 28.26 1449 1456 337.6
C 7 238 3790 6.91 1449 1456 337.6
C 7 159 3663 6.54 1449 1456 337.6
D 6 225 1593337 4404.33 1424 1386 361.5
D 1 52 396901 1094.24 1424 1386 361.5
D 13 104 300440 827.37 1424 1386 361.5

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