ASTROSAT CZTI

Data Quality Report

Orbit 42010

Creation date: 2024-06-27T22:35:41.852712
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_011T26_9000005732_42010cztM0_level2.fits modeM0/AS1A12_011T26_9000005732_42010cztM0_level2_quad_clean.evt
Size (bytes)356,518,08088,937,280
Size340.0 MB 84.8 MB
Events in quadrant A2,906,870616,730
Events in quadrant B3,506,227594,078
Events in quadrant C2,457,877609,021
Events in quadrant D3,925,104512,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117271
B0137481
C0103631
D0151951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A514980.155370%
B51504097.941748%
C515010.019417%
D51504538.796117%

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 7181 5150 2 2 0.03% 0.04%
B 7182 5151 360 360 5.01% 6.99%
C 7182 5151 0 0 0.00% 0.00%
D 7182 5151 376 376 5.24% 7.30%

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 483212 4050.17 589 577 119.2
A 12 189 117141 978.18 589 577 119.2
A 7 3 15687 126.8 589 577 119.2
B 0 186 918659 8269.45 577 563 111.0
B 5 255 144765 1298.85 577 563 111.0
B 4 171 89344 799.67 577 563 111.0
C 15 214 214947 1605.86 574 578 133.5
C 13 61 3876 24.71 574 578 133.5
C 3 233 2544 14.73 574 578 133.5
D 2 249 1184281 8732.99 551 533 135.5
D 13 249 301808 2222.63 551 533 135.5
D 1 52 84057 616.19 551 533 135.5

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