ASTROSAT CZTI

Data Quality Report

Orbit 43244

Creation date: 2024-06-27T22:49:43.215441
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/AS1A06_006T01_9000005860_43244cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43244cztM0_level2_quad_clean.evt
Size (bytes)315,601,92083,062,080
Size301.0 MB 79.2 MB
Events in quadrant A2,900,645555,397
Events in quadrant B2,398,552574,861
Events in quadrant C2,410,123557,579
Events in quadrant D3,587,972480,648

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114802
B0104743
C0100472
D0139702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4942260.526103%
B4941410.829792%
C494140.080955%
D49413767.609796%

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 7065 4943 14 14 0.20% 0.28%
B 7064 4942 33 33 0.47% 0.67%
C 7064 4942 0 0 0.00% 0.00%
D 7064 4942 341 341 4.83% 6.90%

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 544300 4728.01 556 544 115.0
A 15 237 102049 882.6 556 544 115.0
A 12 189 99968 864.5 556 544 115.0
B 5 255 199129 1846.24 548 531 107.6
B 0 189 38161 349.82 548 531 107.6
B 12 111 13491 120.48 548 531 107.6
C 15 214 223382 1742.71 546 548 127.9
C 14 254 29022 222.69 546 548 127.9
C 15 111 16805 127.14 546 548 127.9
D 1 52 1003695 7616.4 525 510 131.7
D 12 233 231222 1751.61 525 510 131.7
D 13 249 92534 698.67 525 510 131.7

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