ASTROSAT CZTI

Data Quality Report

Orbit 38607

Creation date: 2024-06-27T21:54:02.715210
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_052T04_9000005388_38607cztM0_level2.fits modeM0/AS1A12_052T04_9000005388_38607cztM0_level2_quad_clean.evt
Size (bytes)368,769,60098,556,480
Size351.7 MB 94.0 MB
Events in quadrant A2,896,652684,028
Events in quadrant B3,223,819696,479
Events in quadrant C2,701,744671,091
Events in quadrant D4,447,965589,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115683
B0127152
C0109702
D0164722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4894140.286065%
B4894761.552922%
C4894160.326931%
D48943406.947282%

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 7047 4895 7 7 0.10% 0.14%
B 7047 4895 39 39 0.55% 0.80%
C 7047 4895 10 10 0.14% 0.20%
D 7047 4895 374 374 5.31% 7.64%

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 403032 3208.3 627 618 125.4
A 13 248 33294 260.51 627 618 125.4
A 13 6 18455 142.21 627 618 125.4
B 5 184 264179 2293.6 616 604 114.9
B 0 183 224693 1950.0 616 604 114.9
B 5 200 69217 597.06 616 604 114.9
C 15 214 204017 1484.45 605 612 137.0
C 14 254 94573 685.73 605 612 137.0
C 0 10 20560 145.58 605 612 137.0
D 12 235 1174439 8122.73 598 585 144.5
D 1 47 402041 2777.96 598 585 144.5
D 10 118 200430 1382.87 598 585 144.5

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