ASTROSAT CZTI

Data Quality Report

Orbit 45010

Creation date: 2024-06-27T23:08:59.483471
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_45010cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45010cztM0_level2_quad_clean.evt
Size (bytes)616,443,840120,407,040
Size587.9 MB 114.8 MB
Events in quadrant A5,946,792822,841
Events in quadrant B4,313,607843,616
Events in quadrant C3,368,329828,024
Events in quadrant D8,664,464678,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219572
B0171772
C0143962
D0305892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67942563.768031%
B67942834.165440%
C6794841.236385%
D6794100714.821902%

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 7994 6795 5 5 0.06% 0.07%
B 7994 6795 86 86 1.08% 1.27%
C 7994 6795 9 9 0.11% 0.13%
D 7994 6795 823 823 10.30% 12.11%

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 2582360 14968.52 839 821 172.5
A 13 248 99993 575.03 839 821 172.5
A 0 243 17781 98.34 839 821 172.5
B 5 172 168720 1043.47 828 805 160.9
B 5 255 149976 926.99 828 805 160.9
B 0 183 141635 875.16 828 805 160.9
C 15 208 74470 380.31 829 834 193.6
C 3 233 23101 115.0 829 834 193.6
C 12 2 18072 89.03 829 834 193.6
D 11 241 2191854 10939.89 794 770 200.3
D 12 33 680190 3392.28 794 770 200.3
D 13 249 568160 2832.93 794 770 200.3

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