ASTROSAT CZTI

Data Quality Report

Orbit 43214

Creation date: 2024-06-27T22:49:23.536861
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/AS1A09_036T17_9000005858_43214cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43214cztM0_level2_quad_clean.evt
Size (bytes)349,724,16092,134,080
Size333.5 MB 87.9 MB
Events in quadrant A3,719,525606,646
Events in quadrant B2,701,966639,260
Events in quadrant C2,592,290613,482
Events in quadrant D3,513,596554,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145022
B0115002
C0109612
D0140652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53731592.959241%
B5373480.893356%
C537370.130281%
D53731773.294249%

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 7495 5374 119 119 1.59% 2.21%
B 7495 5374 18 18 0.24% 0.33%
C 7495 5374 3 3 0.04% 0.06%
D 7495 5374 151 151 2.01% 2.81%

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 611909 5019.88 594 582 121.8
A 15 237 490229 4020.71 594 582 121.8
A 13 248 152449 1247.05 594 582 121.8
B 0 186 130165 1119.68 595 579 115.7
B 0 230 97845 840.42 595 579 115.7
B 5 172 94311 809.89 595 579 115.7
C 15 214 226203 1634.34 589 592 138.0
C 14 254 52999 379.64 589 592 138.0
C 12 249 9343 63.39 589 592 138.0
D 1 52 927217 6477.89 584 568 143.0
D 2 249 220185 1535.27 584 568 143.0
D 12 6 33684 231.5 584 568 143.0

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