ASTROSAT CZTI

Data Quality Report

Orbit 43327

Creation date: 2024-06-27T22:50:38.972166
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/AS1T05_158T01_9000005868_43327cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43327cztM0_level2_quad_clean.evt
Size (bytes)306,460,80092,450,880
Size292.3 MB 88.2 MB
Events in quadrant A3,161,021621,246
Events in quadrant B2,639,295640,675
Events in quadrant C2,658,961606,483
Events in quadrant D2,466,090554,360

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126762
B0115663
C0111862
D0113242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5372831.545048%
B5371821.526718%
C5371110.204804%
D5371320.595792%

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 7254 5373 63 63 0.87% 1.17%
B 7253 5372 37 37 0.51% 0.69%
C 7253 5372 9 9 0.12% 0.17%
D 7253 5372 25 25 0.34% 0.47%

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 560261 4528.13 600 589 123.6
A 15 237 198685 1602.73 600 589 123.6
A 12 189 66066 529.75 600 589 123.6
B 5 172 268303 2300.45 600 583 116.4
B 12 111 14574 120.22 600 583 116.4
B 11 111 13527 111.22 600 583 116.4
C 15 214 224257 1594.81 596 599 140.2
C 3 233 77273 546.73 596 599 140.2
C 0 207 17762 122.38 596 599 140.2
D 12 6 79091 543.78 587 571 144.4
D 2 249 63068 432.82 587 571 144.4
D 13 249 45835 313.47 587 571 144.4

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