ASTROSAT CZTI

Data Quality Report

Orbit 09065

Creation date: 2024-06-27T15:40:49.638555
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_070T02_9000001262_09065cztM0_level2.evt modeM0/AS1G07_070T02_9000001262_09065cztM0_level2_quad_clean.evt
Size (bytes)247,890,24025,130,880
Size236.4 MB 24.0 MB
Events in quadrant A2,088,642140,382
Events in quadrant B1,686,346143,087
Events in quadrant C1,494,711139,564
Events in quadrant D2,043,255134,896

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081057
B067857
C062846
D0793216

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28422538.902182%
B28412227.814150%
C28421525.348346%
D284133611.826822%

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 2889 2845 0 0 0.00% 0.00%
B 2889 2845 32 32 1.11% 1.12%
C 2889 2845 10 10 0.35% 0.35%
D 2889 2844 144 144 4.98% 5.06%

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 614101 7637.35 378 368 80.4
A 1 162 10113 121.27 378 368 80.4
A 13 251 5107 58.97 378 368 80.4
B 10 16 193447 2569.36 380 368 75.1
B 11 203 8832 112.63 380 368 75.1
B 12 111 8688 110.72 380 368 75.1
C 14 234 42937 482.03 369 371 88.3
C 8 128 4010 41.21 369 371 88.3
C 13 61 2799 27.5 369 371 88.3
D 2 14 578611 6419.32 358 347 90.1
D 12 233 41842 460.64 358 347 90.1
D 1 52 30597 335.81 358 347 90.1

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