ASTROSAT CZTI

Data Quality Report

Orbit 53019

Creation date: 2025-07-17T14:04:26.146046
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/AS1C09_011T07_9000006488_53019cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53019cztM0_level2_quad_clean.evt
Size (bytes)971,216,64054,218,880
Size926.2 MB 51.7 MB
Events in quadrant A13,275,46843,276
Events in quadrant B4,478,462526,905
Events in quadrant C8,237,803368,243
Events in quadrant D9,529,032312,853

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0431171
B0172401
C0283081
D0321671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5578523793.886698%
B557965611.758380%
C5578188933.865185%
D5578246944.263177%

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 6717 5577 4922 4922 73.28% 88.26%
B 6719 5580 508 508 7.56% 9.10%
C 6718 5579 1753 1753 26.09% 31.42%
D 6718 5579 2396 2396 35.67% 42.95%

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 9 191 10719798 155019.03 270 263 69.1
A 7 206 599164 8660.92 270 263 69.1
A 3 62 322748 4663.57 270 263 69.1
B 10 44 1838257 15854.0 546 528 115.9
B 10 128 162454 1396.93 546 528 115.9
B 10 247 66762 571.4 546 528 115.9
C 1 241 3023303 23083.64 471 464 131.0
C 15 224 2658669 20299.15 471 464 131.0
C 1 16 330774 2522.38 471 464 131.0
D 2 62 6792830 48346.74 484 461 140.5
D 15 78 373155 2652.76 484 461 140.5
D 2 249 93209 660.16 484 461 140.5

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