ASTROSAT CZTI

Data Quality Report

Orbit 42060

Creation date: 2024-06-27T22:36:21.297101
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_037T03_9000005738_42060cztM0_level2.fits modeM0/AS1A12_037T03_9000005738_42060cztM0_level2_quad_clean.evt
Size (bytes)256,524,48073,195,200
Size244.6 MB 69.8 MB
Events in quadrant A2,499,775491,290
Events in quadrant B1,976,973499,319
Events in quadrant C2,050,736474,480
Events in quadrant D2,615,294433,009

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140040570742824140037408686126
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100423
B092253
C090752
D0110653

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A451870.154936%
B4518180.398406%
C451830.066401%
D45171032.280275%

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 4518 4518 0 0 0.00% 0.00%
B 4518 4518 9 9 0.20% 0.20%
C 4518 4518 0 0 0.00% 0.00%
D 4517 4517 87 87 1.93% 1.93%

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 434376 4266.68 487 476 101.7
A 15 223 108381 1061.07 487 476 101.7
A 15 222 29712 287.49 487 476 101.7
B 5 255 57836 605.87 484 471 94.7
B 3 112 22349 231.07 484 471 94.7
B 12 111 11760 119.23 484 471 94.7
C 15 214 189717 1665.09 474 477 113.7
C 12 249 6688 54.65 474 477 113.7
C 13 61 3277 24.64 474 477 113.7
D 1 52 292468 2487.78 469 456 117.4
D 12 6 160507 1363.55 469 456 117.4
D 13 249 140410 1192.33 469 456 117.4

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