ASTROSAT CZTI

Data Quality Report

Orbit 44588

Creation date: 2024-06-27T23:04:13.157643
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/AS1A13_009T03_9000006006_44588cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44588cztM0_level2_quad_clean.evt
Size (bytes)480,490,560114,027,840
Size458.2 MB 108.7 MB
Events in quadrant A4,988,123775,519
Events in quadrant B3,484,110790,866
Events in quadrant C3,792,944748,240
Events in quadrant D5,000,803670,545

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207163
B0147542
C0157282
D0193922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67001131.686567%
B67001552.313433%
C67001452.164179%
D67003685.492537%

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 7875 6701 20 20 0.25% 0.30%
B 7875 6700 94 94 1.19% 1.40%
C 7875 6701 109 109 1.38% 1.63%
D 7875 6700 334 334 4.24% 4.99%

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 1928296 11936.19 781 768 161.5
A 13 248 24281 145.6 781 768 161.5
A 3 137 8662 48.88 781 768 161.5
B 5 32 242523 1579.58 780 760 153.1
B 5 172 124703 809.79 780 760 153.1
B 0 155 26519 168.3 780 760 153.1
C 12 2 572197 3183.81 765 773 179.5
C 14 254 128165 709.79 765 773 179.5
C 2 14 34107 185.72 765 773 179.5
D 13 249 1097959 5812.01 747 725 188.8
D 1 52 757341 4007.77 747 725 188.8
D 13 171 90398 474.99 747 725 188.8

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