ASTROSAT CZTI

Data Quality Report

Orbit 46613

Creation date: 2024-06-27T23:25:25.875507
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_080T01_9000006240_46613cztM0_level2.fits modeM0/AS1A13_080T01_9000006240_46613cztM0_level2_quad_clean.evt
Size (bytes)302,806,08055,422,720
Size288.8 MB 52.9 MB
Events in quadrant A4,153,637351,018
Events in quadrant B2,301,980370,187
Events in quadrant C1,599,703365,241
Events in quadrant D2,861,667327,087

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146750
B096660
C078930
D0110510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37423148.391235%
B37421493.981828%
C3742240.641368%
D37421844.917157%

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 3742 3742 320 320 8.55% 8.55%
B 3742 3742 165 165 4.41% 4.41%
C 3742 3742 23 23 0.61% 0.61%
D 3742 3742 164 164 4.38% 4.38%

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 1790524 23530.65 360 354 76.1
A 0 247 802945 10549.55 360 354 76.1
A 13 248 70811 926.11 360 354 76.1
B 4 36 591660 8083.9 361 348 73.1
B 0 189 111918 1525.28 361 348 73.1
B 15 201 47187 640.34 361 348 73.1
C 14 254 142181 1683.63 353 354 84.2
C 12 2 61167 721.91 353 354 84.2
C 3 233 8749 99.66 353 354 84.2
D 1 52 507544 5744.65 349 338 88.3
D 2 249 251860 2848.75 349 338 88.3
D 12 128 224662 2540.71 349 338 88.3

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