ASTROSAT CZTI

Data Quality Report

Orbit 41208

Creation date: 2024-06-27T22:25:51.017285
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_089T09_9000005630_41208cztM0_level2.fits modeM0/AS1A12_089T09_9000005630_41208cztM0_level2_quad_clean.evt
Size (bytes)333,253,44092,802,240
Size317.8 MB 88.5 MB
Events in quadrant A2,895,992617,472
Events in quadrant B3,150,271629,726
Events in quadrant C2,718,043603,312
Events in quadrant D3,124,366557,840

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121661
B0136441
C0118821
D0136501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5743100.174125%
B5743891.549713%
C5743400.696500%
D5743480.835800%

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 7146 5744 1 1 0.01% 0.02%
B 7146 5744 34 34 0.48% 0.59%
C 7146 5744 33 33 0.46% 0.57%
D 7146 5744 39 39 0.55% 0.68%

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 430432 3392.81 615 602 126.7
A 12 189 57927 452.49 615 602 126.7
A 2 79 19843 151.88 615 602 126.7
B 0 229 384140 3234.44 605 587 118.6
B 0 186 337985 2845.22 605 587 118.6
B 5 255 53612 447.15 605 587 118.6
C 15 214 240755 1702.25 602 606 141.1
C 0 10 116317 820.2 602 606 141.1
C 14 254 7534 49.11 602 606 141.1
D 6 112 668921 4505.48 602 586 148.3
D 2 249 47803 318.31 602 586 148.3
D 12 16 40025 265.87 602 586 148.3

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