ASTROSAT CZTI

Data Quality Report

Orbit 45288

Creation date: 2024-06-27T23:11:59.367072
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/AS1A13_024T03_9000006064_45288cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45288cztM0_level2_quad_clean.evt
Size (bytes)436,250,880102,528,000
Size416.0 MB 97.8 MB
Events in quadrant A5,565,424671,037
Events in quadrant B3,642,223710,743
Events in quadrant C2,923,363676,661
Events in quadrant D3,531,213608,696

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210481
B0153231
C0133761
D0149213

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62632624.183299%
B62641472.346743%
C6264470.750319%
D62631131.804247%

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 7118 6263 149 149 2.09% 2.38%
B 7119 6264 50 50 0.70% 0.80%
C 7119 6265 29 29 0.41% 0.46%
D 7118 6264 76 76 1.07% 1.21%

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 2284025 15808.55 695 681 144.4
A 13 248 533194 3686.81 695 681 144.4
A 10 248 51647 352.86 695 681 144.4
B 4 170 261362 1880.04 699 678 138.7
B 5 32 142677 1024.09 699 678 138.7
B 3 112 103272 739.9 699 678 138.7
C 14 254 173214 1063.29 685 690 162.3
C 3 233 48004 291.6 685 690 162.3
C 12 249 21120 125.91 685 690 162.3
D 2 249 274041 1602.17 677 655 170.6
D 13 249 172936 1009.65 677 655 170.6
D 9 49 153541 895.99 677 655 170.6

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