ASTROSAT CZTI

Data Quality Report

Orbit 47447

Creation date: 2024-07-07T03:42:54.767588
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_093T30_9000006328_47447cztM0_level2.fits modeM0/AS1A13_093T30_9000006328_47447cztM0_level2_quad_clean.evt
Size (bytes)112,354,56027,702,720
Size107.1 MB 26.4 MB
Events in quadrant A1,847,785180,519
Events in quadrant B751,180192,357
Events in quadrant C682,042183,575
Events in quadrant D755,104168,494

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066121
B032001
C031301
D032821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15451167.508091%
B154520.129450%
C154600.000000%
D154660.388098%

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 1545 1545 48 48 3.11% 3.11%
B 1545 1545 1 1 0.06% 0.06%
C 1546 1546 0 0 0.00% 0.00%
D 1546 1546 6 6 0.39% 0.39%

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 1109552 29012.89 176 173 38.2
A 9 191 56248 1466.49 176 173 38.2
A 13 254 2384 57.82 176 173 38.2
B 14 167 13453 362.68 179 175 36.6
B 0 198 8010 214.01 179 175 36.6
B 5 171 5826 154.35 179 175 36.6
C 0 207 13475 320.14 170 171 41.6
C 3 233 2696 60.76 170 171 41.6
C 1 3 2657 59.82 170 171 41.6
D 13 23 20151 443.69 170 164 45.0
D 8 176 14891 326.92 170 164 45.0
D 7 55 14045 308.14 170 164 45.0

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