ASTROSAT CZTI

Data Quality Report

Orbit 45058

Creation date: 2024-06-27T23:09:29.189834
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_020T01_9000006040_45058cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45058cztM0_level2_quad_clean.evt
Size (bytes)796,115,520111,983,040
Size759.2 MB 106.8 MB
Events in quadrant A6,215,503818,377
Events in quadrant B4,051,144837,967
Events in quadrant C3,747,024819,465
Events in quadrant D14,862,063381,067

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240105
B0173170
C0166670
D0494307

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76662583.365510%
B76692252.933890%
C7669891.160516%
D7667422155.054128%

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 7668 7667 4 4 0.05% 0.05%
B 7669 7669 37 37 0.48% 0.48%
C 7669 7669 27 27 0.35% 0.35%
D 7668 7668 3617 3617 47.17% 47.17%

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 2666915 14366.09 893 871 185.6
A 0 243 30695 160.71 893 871 185.6
A 7 3 22478 116.43 893 871 185.6
B 5 255 235403 1334.45 887 860 175.8
B 0 155 83315 469.13 887 860 175.8
B 0 168 65197 366.05 887 860 175.8
C 12 250 93708 448.97 876 881 206.8
C 14 254 88892 425.68 876 881 206.8
C 1 3 72583 346.8 876 881 206.8
D 13 174 4946221 25915.41 732 707 190.8
D 11 241 4230505 22164.93 732 707 190.8
D 12 33 572950 2998.66 732 707 190.8

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