ASTROSAT CZTI

Data Quality Report

Orbit 43448

Creation date: 2024-06-27T22:52:06.965173
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/AS1A12_018T01_9000005874_43448cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43448cztM0_level2_quad_clean.evt
Size (bytes)636,583,68069,336,000
Size607.1 MB 66.1 MB
Events in quadrant A12,502,987100,018
Events in quadrant B3,550,746574,673
Events in quadrant C2,378,621563,059
Events in quadrant D4,718,875489,152

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0407962
B0142932
C0106932
D0177972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5313446083.945040%
B53131713.218521%
C531330.056465%
D53133857.246377%

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 7195 5312 4418 4418 61.40% 83.17%
B 7196 5314 105 105 1.46% 1.98%
C 7196 5314 0 0 0.00% 0.00%
D 7196 5314 419 419 5.82% 7.88%

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 15 222 8135931 143199.61 270 264 56.8
A 15 237 2966338 52207.23 270 264 56.8
A 10 83 342130 6017.34 270 264 56.8
B 0 190 854746 8005.41 553 539 106.7
B 0 199 243713 2278.97 553 539 106.7
B 0 189 74256 690.86 553 539 106.7
C 15 214 221338 1733.96 545 550 127.3
C 3 233 31578 243.68 545 550 127.3
C 13 61 3749 25.12 545 550 127.3
D 1 52 1803256 13994.28 524 507 128.8
D 2 16 683953 5305.41 524 507 128.8
D 13 249 82564 636.98 524 507 128.8

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