ASTROSAT CZTI

Data Quality Report

Orbit 07368

Creation date: 2024-06-27T15:19:01.515863
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/AS1G06_151T02_9000001010_07368cztM0_level2.evt modeM0/AS1G06_151T02_9000001010_07368cztM0_level2_quad_clean.evt
Size (bytes)329,097,60061,649,280
Size313.9 MB 58.8 MB
Events in quadrant A2,711,546385,400
Events in quadrant B2,121,002402,394
Events in quadrant C2,150,618397,673
Events in quadrant D2,682,620370,651

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111692
B093631
C094011
D0109811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44142996.773901%
B4414330.747621%
C4414260.589035%
D44141282.899864%

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 5739 4416 183 183 3.19% 4.14%
B 5739 4416 0 0 0.00% 0.00%
C 5739 4416 3 3 0.05% 0.07%
D 5739 4416 87 87 1.52% 1.97%

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 15 234 527578 5165.7 497 486 102.0
A 14 111 249450 2439.94 497 486 102.0
A 15 239 15776 149.85 497 486 102.0
B 0 214 51582 502.71 528 516 101.6
B 10 246 13739 130.17 528 516 101.6
B 12 111 10238 95.71 528 516 101.6
C 9 68 138474 1165.86 508 511 118.3
C 1 16 21700 179.06 508 511 118.3
C 13 61 3992 29.42 508 511 118.3
D 1 52 502451 4052.74 501 486 123.9
D 14 34 147018 1183.06 501 486 123.9
D 2 14 54031 432.31 501 486 123.9

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