ASTROSAT CZTI

Data Quality Report

Orbit 07968

Creation date: 2024-06-27T15:26:10.218821
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/AS1G06_077T01_9000001090_07968cztM0_level2.evt modeM0/AS1G06_077T01_9000001090_07968cztM0_level2_quad_clean.evt
Size (bytes)424,434,24046,572,480
Size404.8 MB 44.4 MB
Events in quadrant A2,034,969278,320
Events in quadrant B2,064,538285,698
Events in quadrant C3,695,643260,566
Events in quadrant D4,745,510261,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0930415
B0930015
C01410218
D01738852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A460460.130321%
B460480.173762%
C46053818.273616%
D4600108123.500000%

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 4611 4611 1 1 0.02% 0.02%
B 4611 4611 2 2 0.04% 0.04%
C 4611 4611 286 286 6.20% 6.20%
D 4611 4611 955 955 20.71% 20.71%

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 0 254 11124 97.67 524 512 108.6
A 0 226 4826 39.71 524 512 108.6
A 13 251 4407 35.85 524 512 108.6
B 5 255 13141 122.58 525 513 103.0
B 12 111 11289 104.6 525 513 103.0
B 11 111 9235 84.66 525 513 103.0
C 9 68 1739172 14991.51 494 496 116.0
C 1 16 15498 129.35 494 496 116.0
C 8 128 6640 52.98 494 496 116.0
D 4 95 2672402 23541.28 458 444 113.5
D 1 52 254266 2236.3 458 444 113.5
D 2 14 67157 587.77 458 444 113.5

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