ASTROSAT CZTI

Data Quality Report

Orbit 42058

Creation date: 2024-06-27T22:36:19.162924
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_037T03_9000005738_42058cztM0_level2.fits modeM0/AS1A12_037T03_9000005738_42058cztM0_level2_quad_clean.evt
Size (bytes)316,972,80091,964,160
Size302.3 MB 87.7 MB
Events in quadrant A3,293,544611,660
Events in quadrant B2,540,215633,065
Events in quadrant C2,603,941599,180
Events in quadrant D2,857,724547,534

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129462
B0114552
C0112802
D0124892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5618781.388394%
B5618140.249199%
C561830.053400%
D5618781.388394%

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 7141 5619 45 45 0.63% 0.80%
B 7141 5619 7 7 0.10% 0.12%
C 7141 5619 1 1 0.01% 0.02%
D 7141 5619 59 59 0.83% 1.05%

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 570417 4425.99 618 606 128.7
A 15 223 309548 2399.7 618 606 128.7
A 12 189 12327 91.04 618 606 128.7
B 0 190 37976 309.86 617 600 120.6
B 5 255 36026 293.69 617 600 120.6
B 5 32 27222 220.7 617 600 120.6
C 15 214 237179 1658.31 604 606 142.7
C 12 249 7884 51.02 604 606 142.7
C 13 61 3968 23.57 604 606 142.7
D 12 6 222339 1498.16 600 583 148.0
D 1 52 139268 936.94 600 583 148.0
D 2 249 60091 402.03 600 583 148.0

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