ASTROSAT CZTI

Data Quality Report

Orbit 48619

Creation date: 2024-09-24T03:31:38.658090
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/AS1A13_037T01_9000006436_48619cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48619cztM0_level2_quad_clean.evt
Size (bytes)431,259,840105,857,280
Size411.3 MB 101.0 MB
Events in quadrant A6,953,281672,362
Events in quadrant B2,896,745737,376
Events in quadrant C2,741,467710,214
Events in quadrant D2,870,989635,382

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249372
B0133542
C0131132
D0134832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64523976.153131%
B6452450.697458%
C6452210.325480%
D6452320.495970%

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 7602 6453 194 194 2.55% 3.01%
B 7602 6453 1 1 0.01% 0.02%
C 7602 6453 0 0 0.00% 0.00%
D 7602 6453 7 7 0.09% 0.11%

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 10 83 4066703 28141.7 689 675 144.5
A 13 248 199316 1374.83 689 675 144.5
A 12 189 18972 126.64 689 675 144.5
B 12 16 39590 283.17 707 687 137.4
B 5 171 22410 158.12 707 687 137.4
B 12 111 17642 123.41 707 687 137.4
C 14 254 4825 24.89 702 705 165.5
C 13 61 4540 23.17 702 705 165.5
C 12 249 2599 11.44 702 705 165.5
D 2 249 70107 398.21 693 669 174.4
D 2 165 49596 280.59 693 669 174.4
D 2 234 31178 174.96 693 669 174.4

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