ASTROSAT CZTI

Data Quality Report

Orbit 25558

Creation date: 2024-06-27T19:19:00.498676
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/AS1A09_043T02_9000003726_25558cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25558cztM0_level2_quad_clean.evt
Size (bytes)314,824,32056,183,040
Size300.2 MB 53.6 MB
Events in quadrant A2,259,050358,733
Events in quadrant B2,196,488366,324
Events in quadrant C2,149,554341,544
Events in quadrant D2,636,938332,383

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095250
B090770
C089290
D0107680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4290140.326340%
B4290160.372960%
C4290400.932401%
D4289451.049196%

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 5390 4291 0 0 0.00% 0.00%
B 5390 4291 0 0 0.00% 0.00%
C 5390 4291 0 0 0.00% 0.00%
D 5389 4290 32 32 0.59% 0.75%

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 17 125131 1102.05 553 544 113.1
A 13 254 6734 54.75 553 544 113.1
A 3 137 5160 40.83 553 544 113.1
B 0 190 14211 129.71 549 536 105.4
B 3 112 13454 122.53 549 536 105.4
B 12 111 12852 116.82 549 536 105.4
C 14 238 84357 676.46 526 530 123.9
C 3 233 13275 102.85 526 530 123.9
C 13 61 3569 24.52 526 530 123.9
D 8 195 295556 2267.55 529 513 130.1
D 1 52 291522 2236.55 529 513 130.1
D 2 244 40879 310.23 529 513 130.1

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