ASTROSAT CZTI

Data Quality Report

Orbit 00595

Creation date: 2024-06-27T14:00:19.441986
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/AS1P01_126T01_9000000084_00595cztM0_level2.evt modeM0/AS1P01_126T01_9000000084_00595cztM0_level2_quad_clean.evt
Size (bytes)798,943,68057,913,920
Size761.9 MB 55.2 MB
Events in quadrant A5,967,943351,382
Events in quadrant B5,915,125359,840
Events in quadrant C5,428,647355,390
Events in quadrant D6,554,059338,237

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212893
B0210882
C0196622
D0230062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A497230.060338%
B497240.080451%
C497230.060338%
D4972801.609010%

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 7126 4973 95 95 1.33% 1.91%
B 7126 4973 76 76 1.07% 1.53%
C 7126 4973 34 34 0.48% 0.68%
D 7126 4973 372 372 5.22% 7.48%

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 13 160 46807 134.61 1511 1490 336.6
A 0 238 27986 78.7 1511 1490 336.6
A 0 69 19249 52.75 1511 1490 336.6
B 7 221 95325 265.35 1488 1495 353.6
B 4 250 54175 148.98 1488 1495 353.6
B 8 54 31376 84.5 1488 1495 353.6
C 15 241 15873 37.9 1373 1419 381.4
C 0 221 10227 23.1 1373 1419 381.4
C 9 83 7164 15.06 1373 1419 381.4
D 13 216 422277 1002.57 1342 1396 419.8
D 1 4 396685 941.61 1342 1396 419.8
D 13 221 165515 390.94 1342 1396 419.8

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