ASTROSAT CZTI

Data Quality Report

Orbit 09583

Creation date: 2024-06-27T15:48:27.509816
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_052T01_9000001362_09583cztM0_level2.evt modeM0/AS1G07_052T01_9000001362_09583cztM0_level2_quad_clean.evt
Size (bytes)262,175,04050,077,440
Size250.0 MB 47.8 MB
Events in quadrant A2,096,245320,336
Events in quadrant B1,796,513327,720
Events in quadrant C1,734,429319,564
Events in quadrant D2,076,970304,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084586
B074241
C073123
D083739

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34441424.123113%
B3446952.756820%
C3445641.857765%
D34421454.212667%

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 4696 3446 1 1 0.02% 0.03%
B 4696 3447 4 4 0.09% 0.12%
C 4696 3447 0 0 0.00% 0.00%
D 4696 3447 56 56 1.19% 1.62%

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 1 162 130806 1415.22 452 444 92.1
A 1 178 74030 798.85 452 444 92.1
A 1 161 68696 740.95 452 444 92.1
B 10 245 29318 324.15 453 444 89.1
B 12 111 10168 109.17 453 444 89.1
B 11 111 8215 87.24 453 444 89.1
C 9 68 4448 38.27 442 446 104.6
C 12 4 4396 37.77 442 446 104.6
C 13 61 3137 25.73 442 446 104.6
D 1 52 366936 3243.68 434 424 113.0
D 13 104 38466 336.68 434 424 113.0
D 2 234 19837 171.81 434 424 113.0

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