ASTROSAT CZTI

Data Quality Report

Orbit 47605

Creation date: 2024-07-17T18:43:31.665010
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_071T01_9000006340_47605cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47605cztM0_level2_quad_clean.evt
Size (bytes)524,062,080105,336,000
Size499.8 MB 100.5 MB
Events in quadrant A7,576,022698,542
Events in quadrant B4,739,836700,290
Events in quadrant C2,864,004708,410
Events in quadrant D3,739,221650,219

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270873
B0181751
C0127531
D0153331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61934807.750686%
B61945038.120762%
C6194430.694220%
D61941993.212787%

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 7383 6194 226 226 3.06% 3.65%
B 7384 6195 329 329 4.46% 5.31%
C 7384 6195 1 1 0.01% 0.02%
D 7384 6195 137 137 1.86% 2.21%

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 3526449 23887.01 717 702 147.6
A 9 191 580244 3926.41 717 702 147.6
A 13 248 446846 3022.63 717 702 147.6
B 12 48 854521 6352.36 695 674 134.4
B 5 32 462997 3439.54 695 674 134.4
B 5 29 249840 1853.72 695 674 134.4
C 3 233 107298 644.5 703 707 165.4
C 6 247 8949 49.84 703 707 165.4
C 1 3 6473 34.86 703 707 165.4
D 2 249 293985 1662.9 709 688 176.4
D 13 171 219010 1237.82 709 688 176.4
D 2 165 180518 1019.58 709 688 176.4

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