ASTROSAT CZTI

Data Quality Report

Orbit 05889

Creation date: 2024-06-27T15:00:29.523360
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/AS1A02_114T01_9000000764_05889cztM0_level2.evt modeM0/AS1A02_114T01_9000000764_05889cztM0_level2_quad_clean.evt
Size (bytes)339,880,32052,263,360
Size324.1 MB 49.8 MB
Events in quadrant A2,197,837312,257
Events in quadrant B2,322,682321,530
Events in quadrant C2,213,592313,279
Events in quadrant D3,224,086290,124

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100112
B0102141
C0100061
D0127881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A491890.183001%
B4918270.549004%
C491870.142334%
D4918771.565677%

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 6138 4919 0 0 0.00% 0.00%
B 6138 4919 2 2 0.03% 0.04%
C 6138 4919 1 1 0.02% 0.02%
D 6138 4919 51 51 0.83% 1.04%

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 7 16 5519 42.84 568 555 115.9
A 12 194 5286 40.83 568 555 115.9
A 0 226 5260 40.6 568 555 115.9
B 15 255 33965 300.48 580 566 111.2
B 15 204 23573 206.98 580 566 111.2
B 12 111 10380 88.29 580 566 111.2
C 8 208 8097 57.63 564 566 130.7
C 13 61 4453 29.74 564 566 130.7
C 1 16 2627 15.77 564 566 130.7
D 1 20 536275 3929.19 552 537 136.3
D 2 152 263427 1928.08 552 537 136.3
D 12 233 180850 1322.45 552 537 136.3

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