ASTROSAT CZTI

Data Quality Report

Orbit 38129

Creation date: 2024-06-27T21:48:46.923402
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/AS1C07_001T12_9000005366_38129cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38129cztM0_level2_quad_clean.evt
Size (bytes)335,635,20096,304,320
Size320.1 MB 91.8 MB
Events in quadrant A3,792,300650,493
Events in quadrant B2,554,992679,375
Events in quadrant C2,596,748647,479
Events in quadrant D3,076,450575,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147693
B0110002
C0107532
D0126452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5183531.022574%
B5183310.598109%
C5183130.250820%
D51831613.106309%

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 7306 5184 36 36 0.49% 0.69%
B 7306 5184 14 14 0.19% 0.27%
C 7306 5184 8 8 0.11% 0.15%
D 7306 5184 135 135 1.85% 2.60%

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 12 16 957685 8066.26 593 585 118.7
A 10 83 352433 2965.31 593 585 118.7
A 12 194 139963 1174.65 593 585 118.7
B 0 229 62987 555.49 599 584 112.3
B 4 171 56737 499.86 599 584 112.3
B 5 172 52090 458.49 599 584 112.3
C 15 214 218098 1608.63 585 588 135.2
C 0 10 31203 226.42 585 588 135.2
C 3 233 29196 211.58 585 588 135.2
D 13 249 415620 3036.15 569 555 136.7
D 4 239 147701 1076.36 569 555 136.7
D 7 55 100098 728.15 569 555 136.7

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