ASTROSAT CZTI

Data Quality Report

Orbit 16422

Creation date: 2024-06-27T17:22:26.593047
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/AS1A05_069T01_9000002424_16422cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16422cztM0_level2_quad_clean.evt
Size (bytes)230,149,44057,470,400
Size219.5 MB 54.8 MB
Events in quadrant A1,627,192378,450
Events in quadrant B1,828,992383,768
Events in quadrant C1,652,727365,963
Events in quadrant D1,616,552359,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072910
B077350
C072270
D072730

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A356870.196188%
B3568160.448430%
C3568140.392377%
D356810.028027%

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 3569 3569 1 1 0.03% 0.03%
B 3569 3569 9 9 0.25% 0.25%
C 3569 3569 2 2 0.06% 0.06%
D 3569 3569 2 2 0.06% 0.06%

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 15 174 47275 555.79 409 401 84.3
A 15 223 4736 51.4 409 401 84.3
A 0 226 3633 38.32 409 401 84.3
B 0 244 62216 771.72 406 396 80.1
B 15 35 58643 727.12 406 396 80.1
B 0 198 54382 673.92 406 396 80.1
C 14 238 59464 638.18 389 391 92.6
C 3 233 38789 414.82 389 391 92.6
C 0 207 23341 247.93 389 391 92.6
D 1 52 34320 346.8 397 384 97.9
D 1 20 29811 300.72 397 384 97.9
D 2 234 15133 150.72 397 384 97.9

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