ASTROSAT CZTI

Data Quality Report

Orbit 10604

Creation date: 2024-06-27T16:01:22.690091
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/AS1T01_191T01_9000001536_10604cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10604cztM0_level2_quad_clean.evt
Size (bytes)470,744,64083,128,320
Size448.9 MB 79.3 MB
Events in quadrant A2,779,065552,972
Events in quadrant B4,893,155498,677
Events in quadrant C2,549,484547,823
Events in quadrant D3,650,763521,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120232
B0182871
C0115801
D0147171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5653470.831417%
B565370012.382806%
C5653210.371484%
D5653400.707589%

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 6628 5654 1 1 0.02% 0.02%
B 6628 5654 518 518 7.82% 9.16%
C 6628 5654 0 0 0.00% 0.00%
D 6628 5654 10 10 0.15% 0.18%

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 1 162 57857 407.48 675 665 140.4
A 15 239 41846 293.41 675 665 140.4
A 1 178 23620 163.55 675 665 140.4
B 4 239 2113161 16870.65 639 627 125.2
B 0 219 116861 928.24 639 627 125.2
B 11 51 57755 456.22 639 627 125.2
C 15 48 12588 77.98 648 654 153.0
C 14 234 5440 31.27 648 654 153.0
C 13 61 4956 28.11 648 654 153.0
D 2 16 600458 3725.14 647 631 161.0
D 8 195 288597 1788.37 647 631 161.0
D 1 52 152971 946.09 647 631 161.0

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