ASTROSAT CZTI

Data Quality Report

Orbit 06516

Creation date: 2024-06-27T15:08:18.454522
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/AS1G06_136T02_9000000876_06516cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06516cztM0_level2_quad_clean.evt
Size (bytes)441,823,68088,079,040
Size421.4 MB 84.0 MB
Events in quadrant A3,136,400550,634
Events in quadrant B3,292,465560,655
Events in quadrant C2,968,348554,037
Events in quadrant D3,522,195529,295

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140492
B0144471
C0138121
D0150961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67841602.358491%
B67841742.564858%
C6784811.193986%
D67841141.680425%

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 7344 6785 0 0 0.00% 0.00%
B 7344 6785 34 34 0.46% 0.50%
C 7344 6785 0 0 0.00% 0.00%
D 7344 6785 9 9 0.12% 0.13%

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 15 236 72325 449.39 780 761 159.2
A 8 15 58261 361.08 780 761 159.2
A 0 226 7542 42.58 780 761 159.2
B 0 228 142331 933.69 782 761 151.6
B 4 172 25689 164.41 782 761 151.6
B 0 214 23168 147.78 782 761 151.6
C 4 254 14365 77.59 754 757 175.4
C 13 61 5915 29.41 754 757 175.4
C 12 4 4361 20.55 754 757 175.4
D 11 241 247389 1322.24 758 734 186.5
D 2 136 124019 660.89 758 734 186.5
D 2 152 96570 513.75 758 734 186.5

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