ASTROSAT CZTI

Data Quality Report

Orbit 42972

Creation date: 2024-06-27T22:46:26.272310
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_145T01_9000005836_42972cztM0_level2.fits modeM0/AS1T05_145T01_9000005836_42972cztM0_level2_quad_clean.evt
Size (bytes)563,169,60081,688,320
Size537.1 MB 77.9 MB
Events in quadrant A3,136,424701,361
Events in quadrant B10,694,867136,293
Events in quadrant C2,643,443682,908
Events in quadrant D3,977,934598,765

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129581
B0352451
C0109101
D0152511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50591042.055742%
B5060415982.193676%
C5060450.889328%
D50602885.691700%

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 6521 5060 70 70 1.07% 1.38%
B 6522 5061 3909 3909 59.94% 77.24%
C 6522 5061 24 24 0.37% 0.47%
D 6522 5061 299 299 4.58% 5.91%

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 460445 3352.45 610 599 137.2
A 15 237 276655 2012.55 610 599 137.2
A 15 222 18455 130.18 610 599 137.2
B 4 81 8493560 181647.88 219 214 46.8
B 4 171 1280182 27374.78 219 214 46.8
B 0 186 46743 995.12 219 214 46.8
C 15 214 202047 1366.22 595 602 147.4
C 14 254 98934 666.9 595 602 147.4
C 0 239 17052 111.57 595 602 147.4
D 12 2 770568 4946.29 585 569 155.7
D 1 47 370073 2373.6 585 569 155.7
D 1 52 239863 1537.17 585 569 155.7

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