ASTROSAT CZTI

Data Quality Report

Orbit 19154

Creation date: 2024-06-27T17:59:36.890910
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/AS1A05_046T01_9000002838_19154cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19154cztM0_level2_quad_clean.evt
Size (bytes)257,224,32033,056,640
Size245.3 MB 31.5 MB
Events in quadrant A1,685,215186,540
Events in quadrant B1,780,529194,723
Events in quadrant C2,324,211177,477
Events in quadrant D1,751,384184,670

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104623075
B0107293154
C0139814548
D0107883105

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010428
B010426
C010432
D010436

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022
B021
C021
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3664190.518559%
B3648280.767544%
C3528661.870748%
D3652180.492881%

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 4909 4010 0 0 0.00% 0.00%
B 5148 4053 2 2 0.04% 0.05%
C 4848 3938 1 1 0.02% 0.03%
D 5199 4034 1 1 0.02% 0.02%

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 11 29 9545 101.18 434 424 90.1
A 13 254 4680 47.21 434 424 90.1
A 0 226 3861 38.13 434 424 90.1
B 7 220 24023 278.74 431 421 84.7
B 3 112 21870 253.31 431 421 84.7
B 6 36 14964 171.75 431 421 84.7
C 3 233 696320 7272.2 401 402 95.7
C 14 238 62180 645.57 401 402 95.7
C 13 61 2917 26.28 401 402 95.7
D 1 52 153142 1469.41 423 411 103.9
D 2 234 14472 135.28 423 411 103.9
D 14 226 4188 36.34 423 411 103.9

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