ASTROSAT CZTI

Data Quality Report

Orbit 50607

Creation date: 2025-02-05T01:40:49.157222
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_239T01_9000006444_50607cztM0_level2.fits modeM0/AS1T05_239T01_9000006444_50607cztM0_level2_quad_clean.evt
Size (bytes)835,850,88067,697,280
Size797.1 MB 64.6 MB
Events in quadrant A3,929,904573,826
Events in quadrant B7,649,033486,897
Events in quadrant C4,639,244527,093
Events in quadrant D14,249,35235,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157801
B0269012
C0180411
D0464591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60991021.672405%
B6099157525.823906%
C60994787.837350%
D6099577994.753238%

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 7204 6100 89 89 1.24% 1.46%
B 7204 6099 1239 1239 17.20% 20.31%
C 7204 6100 446 446 6.19% 7.31%
D 7204 6099 5458 5458 75.76% 89.49%

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 9 96 480709 3023.77 633 617 158.8
A 7 204 224505 1410.12 633 617 158.8
A 4 3 157341 987.1 633 617 158.8
B 4 170 2966725 24069.81 580 560 123.2
B 3 249 691293 5605.15 580 560 123.2
B 5 32 592289 4801.75 580 560 123.2
C 15 1 862227 5221.98 604 600 165.0
C 15 158 393832 2383.22 604 600 165.0
C 14 247 301738 1825.08 604 600 165.0
D 2 226 12362192 128228.19 338 326 96.4
D 2 249 131693 1362.65 338 326 96.4
D 7 96 75237 777.04 338 326 96.4

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