ASTROSAT CZTI

Data Quality Report

Orbit 03580

Creation date: 2024-06-27T14:31:15.089862
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/AS1G05_246T03_9000000470_03580cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03580cztM0_level2_quad_clean.evt
Size (bytes)405,809,28079,994,880
Size387.0 MB 76.3 MB
Events in quadrant A2,886,018493,583
Events in quadrant B3,165,368498,324
Events in quadrant C2,867,467500,749
Events in quadrant D2,933,563481,234

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132802
B0139011
C0133011
D0137361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431651.010729%
B6431861.337273%
C6431400.621987%
D6431651.010729%

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 6556 6433 0 0 0.00% 0.00%
B 6556 6433 1 1 0.02% 0.02%
C 6556 6433 0 0 0.00% 0.00%
D 6556 6433 40 40 0.61% 0.62%

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 0 118 32290 210.49 728 712 150.0
A 3 1 18784 120.46 728 712 150.0
A 0 226 10429 64.77 728 712 150.0
B 15 204 243046 1658.58 741 722 146.1
B 0 183 17334 113.7 741 722 146.1
B 0 228 14786 96.26 741 722 146.1
C 1 16 25247 145.35 716 719 168.8
C 8 128 20344 116.3 716 719 168.8
C 8 112 9039 49.3 716 719 168.8
D 13 223 96788 557.5 707 684 172.4
D 14 34 63526 364.54 707 684 172.4
D 12 219 23498 132.34 707 684 172.4

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