ASTROSAT CZTI

Data Quality Report

Orbit 41383

Creation date: 2024-06-27T22:28:24.754378
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_035T01_9000005660_41383cztM0_level2.fits modeM0/AS1A12_035T01_9000005660_41383cztM0_level2_quad_clean.evt
Size (bytes)292,320,00080,340,480
Size278.8 MB 76.6 MB
Events in quadrant A2,545,622544,203
Events in quadrant B2,202,988551,161
Events in quadrant C2,533,082511,242
Events in quadrant D3,154,895481,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104801
B0100401
C0106491
D0127081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A492490.182778%
B492450.101543%
C49241122.274574%
D49241292.619821%

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 6477 4925 2 2 0.03% 0.04%
B 6477 4925 0 0 0.00% 0.00%
C 6477 4925 105 105 1.62% 2.13%
D 6477 4925 133 133 2.05% 2.70%

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 404377 3619.8 539 527 111.6
A 12 189 42278 374.22 539 527 111.6
A 13 6 7806 65.24 539 527 111.6
B 0 190 64015 603.81 534 518 105.2
B 5 255 18126 167.44 534 518 105.2
B 12 111 13233 120.91 534 518 105.2
C 0 10 280648 2276.12 521 523 123.1
C 15 214 201766 1635.17 521 523 123.1
C 2 16 15014 117.74 521 523 123.1
D 1 47 595116 4610.8 523 507 129.0
D 1 52 224794 1739.2 523 507 129.0
D 13 249 125458 968.91 523 507 129.0

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