ASTROSAT CZTI

Data Quality Report

Orbit 09367

Creation date: 2024-06-27T15:45:07.196524
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_040T01_9000001326_09367cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09367cztM0_level2_quad_clean.evt
Size (bytes)647,115,840101,283,840
Size617.1 MB 96.6 MB
Events in quadrant A4,305,787665,176
Events in quadrant B3,301,794682,922
Events in quadrant C3,086,547665,092
Events in quadrant D8,426,459562,615

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173503
B0147642
C0143832
D0300142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70541592.254040%
B7054550.779699%
C7054150.212645%
D7054139319.747661%

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 9139 7056 62 62 0.68% 0.88%
B 9139 7056 3 3 0.03% 0.04%
C 9139 7056 0 0 0.00% 0.00%
D 9139 7056 1250 1250 13.68% 17.72%

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 8 5 1039153 6288.19 803 785 165.1
A 1 162 62418 373.24 803 785 165.1
A 13 251 32917 194.59 803 785 165.1
B 0 214 69047 433.95 821 799 157.3
B 12 111 16856 102.1 821 799 157.3
B 4 173 14292 85.79 821 799 157.3
C 13 61 5930 28.03 789 792 183.3
C 8 222 3998 17.49 789 792 183.3
C 14 67 3182 13.04 789 792 183.3
D 12 227 3019084 16225.26 710 692 186.0
D 1 52 1437623 7724.17 710 692 186.0
D 8 195 874145 4695.22 710 692 186.0

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