ASTROSAT CZTI

Data Quality Report

Orbit 42143

Creation date: 2024-06-27T22:37:28.774852
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/AS1C07_001T11_9000005760_42143cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42143cztM0_level2_quad_clean.evt
Size (bytes)285,122,88081,783,360
Size271.9 MB 78.0 MB
Events in quadrant A2,560,810540,787
Events in quadrant B2,343,152559,206
Events in quadrant C2,218,887545,429
Events in quadrant D3,046,020484,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106882
B0105812
C099362
D0127782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A493780.162042%
B4937290.587401%
C493750.101276%
D49371973.990277%

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 7000 4938 4 4 0.06% 0.08%
B 7000 4938 19 19 0.27% 0.38%
C 7000 4938 0 0 0.00% 0.00%
D 7000 4938 163 163 2.33% 3.30%

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 10 83 519359 4860.29 518 507 106.8
A 13 6 20558 187.83 518 507 106.8
A 12 189 18956 172.82 518 507 106.8
B 0 229 172934 1732.33 518 504 99.5
B 5 255 78996 788.58 518 504 99.5
B 3 112 51020 507.51 518 504 99.5
C 15 214 206035 1723.53 511 513 119.2
C 15 111 6724 52.09 511 513 119.2
C 12 249 3983 29.1 511 513 119.2
D 12 233 451063 3707.48 496 481 121.5
D 1 52 188547 1547.45 496 481 121.5
D 13 249 150126 1231.31 496 481 121.5

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