ASTROSAT CZTI

Data Quality Report

Orbit 37348

Creation date: 2024-06-27T21:38:49.867728
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/AS1C07_014T01_9000005314_37348cztM0_level2.evt modeM0/AS1C07_014T01_9000005314_37348cztM0_level2_quad_clean.evt
Size (bytes)747,976,32065,154,240
Size713.3 MB 62.1 MB
Events in quadrant A2,718,379456,192
Events in quadrant B3,020,174467,421
Events in quadrant C9,293,781316,686
Events in quadrant D7,275,639373,445

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109602
B0121701
C0310631
D0250751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A510690.176263%
B51061011.978065%
C5106275353.916960%
D5106157230.787309%

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 7259 5107 4 4 0.06% 0.08%
B 7259 5107 52 52 0.72% 1.02%
C 7259 5107 2593 2593 35.72% 50.77%
D 7259 5107 1423 1423 19.60% 27.86%

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 83 245757 1940.99 623 613 126.3
A 9 143 31078 241.21 623 613 126.3
A 15 237 18288 139.95 623 613 126.3
B 5 255 237558 2008.15 615 602 118.0
B 0 190 182112 1538.25 615 602 118.0
B 5 172 140042 1181.72 615 602 118.0
C 1 23 7081697 66711.68 452 456 106.1
C 14 254 177544 1668.33 452 456 106.1
C 15 214 169176 1589.49 452 456 106.1
D 12 227 3883534 30155.63 523 509 128.8
D 12 235 963667 7479.9 523 509 128.8
D 12 233 108056 835.21 523 509 128.8

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