ASTROSAT CZTI

Data Quality Report

Orbit 39188

Creation date: 2024-06-27T22:01:33.662263
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_054T02_9000005444_39188cztM0_level2.fits modeM0/AS1A12_054T02_9000005444_39188cztM0_level2_quad_clean.evt
Size (bytes)423,817,92086,664,960
Size404.2 MB 82.7 MB
Events in quadrant A2,883,423622,021
Events in quadrant B2,392,326629,440
Events in quadrant C2,570,457583,857
Events in quadrant D7,441,157427,614

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117833
B0105662
C0107472
D0256312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5152711.378106%
B515270.135870%
C5152150.291149%
D5152147528.629658%

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 7216 5153 37 37 0.51% 0.72%
B 7216 5153 3 3 0.04% 0.06%
C 7216 5153 12 12 0.17% 0.23%
D 7216 5153 1321 1321 18.31% 25.64%

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 434337 3677.71 583 572 117.9
A 13 248 127803 1078.74 583 572 117.9
A 9 143 52821 443.0 583 572 117.9
B 0 213 45819 408.13 579 564 110.9
B 5 184 31047 274.91 579 564 110.9
B 5 172 28352 250.61 579 564 110.9
C 15 214 217262 1659.0 565 569 130.6
C 9 187 122328 932.19 565 569 130.6
C 0 10 15358 113.22 565 569 130.6
D 12 235 4724393 38178.89 512 497 123.7
D 2 249 246601 1989.03 512 497 123.7
D 1 47 102242 822.31 512 497 123.7

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