ASTROSAT CZTI

Data Quality Report

Orbit 29423

Creation date: 2024-06-27T20:03:59.801716
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/AS1A10_102T05_9000004232_29423cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29423cztM0_level2_quad_clean.evt
Size (bytes)702,930,24099,777,600
Size670.4 MB 95.2 MB
Events in quadrant A3,103,788658,649
Events in quadrant B3,289,274681,542
Events in quadrant C9,256,218604,534
Events in quadrant D5,201,569624,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134242
B0139002
C0320453
D0199252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6486160.246685%
B6486390.601295%
C6485149022.976099%
D64853154.857363%

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 7571 6487 0 0 0.00% 0.00%
B 7571 6487 4 4 0.05% 0.06%
C 7570 6486 705 705 9.31% 10.87%
D 7570 6486 211 211 2.79% 3.25%

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 13 254 11680 67.44 804 790 161.5
A 3 137 7856 43.76 804 790 161.5
A 0 226 6725 36.76 804 790 161.5
B 10 245 61130 390.46 806 787 154.5
B 12 111 19028 118.03 806 787 154.5
B 5 255 18143 112.3 806 787 154.5
C 3 233 6209992 36135.0 736 741 171.8
C 14 238 135238 782.71 736 741 171.8
C 14 254 25388 143.43 736 741 171.8
D 1 52 842862 4604.08 765 744 182.9
D 8 195 527232 2878.45 765 744 182.9
D 7 80 392202 2140.2 765 744 182.9

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