ASTROSAT CZTI

Data Quality Report

Orbit 09535

Creation date: 2024-06-27T15:47:23.277854
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/AS1G07_049T01_9000001352_09535cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09535cztM0_level2_quad_clean.evt
Size (bytes)478,946,880126,296,640
Size456.8 MB 120.4 MB
Events in quadrant A3,611,413849,770
Events in quadrant B3,180,500859,960
Events in quadrant C3,415,250844,359
Events in quadrant D3,856,125817,728

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01501924
B01364417
C01457748
D0158039

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6509981.505608%
B6511640.982952%
C65011241.907399%
D65152113.238680%

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 7628 6519 2 2 0.03% 0.03%
B 7628 6519 8 8 0.10% 0.12%
C 7628 6517 43 43 0.56% 0.66%
D 7628 6519 150 150 1.97% 2.30%

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 1 162 192894 1223.74 785 770 157.0
A 15 223 127359 806.31 785 770 157.0
A 1 178 91555 578.25 785 770 157.0
B 0 214 70543 477.16 784 765 146.2
B 0 219 40196 269.64 784 765 146.2
B 12 111 15837 103.06 784 765 146.2
C 4 254 375668 2142.55 766 768 175.0
C 14 234 45617 256.31 766 768 175.0
C 13 61 5879 29.21 766 768 175.0
D 1 52 782352 4314.83 757 738 181.1
D 8 195 82609 451.96 757 738 181.1
D 12 233 37875 205.01 757 738 181.1

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