ASTROSAT CZTI

Data Quality Report

Orbit 34026

Creation date: 2024-06-27T20:55:33.954740
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/AS1A06_003T04_9000004866_34026cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34026cztM0_level2_quad_clean.evt
Size (bytes)555,068,16061,738,560
Size529.4 MB 58.9 MB
Events in quadrant A2,582,662404,379
Events in quadrant B3,639,819391,706
Events in quadrant C3,638,680390,036
Events in quadrant D6,568,328289,597

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113782
B0144801
C0144691
D0232981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A561590.160285%
B56152484.416741%
C56151322.350846%
D5615145325.877115%

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 7228 5616 0 0 0.00% 0.00%
B 7227 5615 208 208 2.88% 3.70%
C 7227 5615 109 109 1.51% 1.94%
D 7227 5614 1443 1443 19.97% 25.70%

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 13 6 22292 163.66 655 641 132.3
A 10 83 18699 136.5 655 641 132.3
A 13 254 10179 72.1 655 641 132.3
B 5 172 760403 6123.52 639 620 124.1
B 0 219 78552 628.1 639 620 124.1
B 0 189 73991 591.34 639 620 124.1
C 0 10 462980 3122.79 634 638 148.1
C 15 214 259488 1748.35 634 638 148.1
C 3 233 147398 991.26 634 638 148.1
D 8 230 2765953 18203.98 555 545 151.9
D 8 195 352321 2315.65 555 545 151.9
D 2 249 300732 1976.05 555 545 151.9

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