ASTROSAT CZTI

Data Quality Report

Orbit 41014

Creation date: 2024-06-27T22:23:17.496673
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_029T02_9000005590_41014cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41014cztM0_level2_quad_clean.evt
Size (bytes)349,715,52098,585,280
Size333.5 MB 94.0 MB
Events in quadrant A3,109,571653,473
Events in quadrant B2,541,744671,774
Events in quadrant C2,985,994653,147
Events in quadrant D3,851,176596,621

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128223
B0118302
C0125932
D0155712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5869120.204464%
B586940.068155%
C5869480.817857%
D5869540.920089%

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 9757 5871 5 5 0.05% 0.09%
B 9757 5871 0 0 0.00% 0.00%
C 9757 5871 48 48 0.49% 0.82%
D 9757 5871 44 44 0.45% 0.75%

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 526411 4012.07 639 627 131.1
A 12 189 81220 614.98 639 627 131.1
A 2 79 24067 178.86 639 627 131.1
B 0 190 27464 216.36 637 618 124.1
B 12 111 15948 123.55 637 618 124.1
B 11 111 14568 112.43 637 618 124.1
C 15 214 252177 1712.36 630 635 146.9
C 14 254 136960 928.02 630 635 146.9
C 0 10 100490 679.76 630 635 146.9
D 12 79 863130 5686.61 624 606 151.7
D 13 249 336195 2212.53 624 606 151.7
D 1 47 66854 436.77 624 606 151.7

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