ASTROSAT CZTI

Data Quality Report

Orbit 43212

Creation date: 2024-06-27T22:49:21.859614
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/AS1A09_036T17_9000005858_43212cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43212cztM0_level2_quad_clean.evt
Size (bytes)350,133,12088,015,680
Size333.9 MB 83.9 MB
Events in quadrant A3,942,708570,971
Events in quadrant B2,649,139615,269
Events in quadrant C2,500,567593,516
Events in quadrant D3,469,844526,805

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151352
B0114392
C0104462
D0137512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51202945.742188%
B5120901.757812%
C512090.175781%
D51202174.238281%

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 7092 5121 266 266 3.75% 5.19%
B 7092 5121 48 48 0.68% 0.94%
C 7092 5121 2 2 0.03% 0.04%
D 7092 5121 145 145 2.04% 2.83%

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 15 237 568804 4924.97 561 549 115.4
A 10 83 544422 4713.66 561 549 115.4
A 13 248 534084 4624.06 561 549 115.4
B 0 186 316714 2858.73 572 557 110.6
B 5 255 32169 285.84 572 557 110.6
B 0 229 21883 192.83 572 557 110.6
C 15 214 213355 1576.34 572 576 135.0
C 14 254 50785 371.97 572 576 135.0
C 4 254 7547 51.64 572 576 135.0
D 1 52 1192169 8685.73 555 538 137.2
D 12 6 88922 644.22 555 538 137.2
D 5 157 22358 159.04 555 538 137.2

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