ASTROSAT CZTI

Data Quality Report

Orbit 02523

Creation date: 2024-06-27T14:19:02.219959
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/AS1T01_103T01_9000000374_02523cztM0_level2.evt modeM0/AS1T01_103T01_9000000374_02523cztM0_level2_quad_clean.evt
Size (bytes)597,476,16074,085,120
Size569.8 MB 70.7 MB
Events in quadrant A3,628,344434,356
Events in quadrant B3,725,363434,381
Events in quadrant C3,881,030427,573
Events in quadrant D6,315,525389,241

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166923
B0168352
C0175652
D0242942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80182603.242704%
B80182683.342479%
C80182813.504615%
D801896512.035420%

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 8033 8019 2 2 0.02% 0.02%
B 8033 8019 1 1 0.01% 0.01%
C 8033 8019 83 83 1.03% 1.04%
D 8033 8019 689 689 8.58% 8.59%

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 15 109 16304 80.24 934 912 191.8
A 12 194 10345 49.17 934 912 191.8
A 0 226 10276 48.81 934 912 191.8
B 7 205 61385 333.79 943 919 181.2
B 5 6 22147 117.18 943 919 181.2
B 12 111 14694 76.04 943 919 181.2
C 14 223 319539 1513.7 902 900 210.5
C 10 82 10906 47.53 902 900 210.5
C 10 200 8439 35.81 902 900 210.5
D 11 130 2629159 12688.99 860 834 207.1
D 11 131 282552 1360.07 860 834 207.1
D 2 184 57673 274.41 860 834 207.1

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