ASTROSAT CZTI

Data Quality Report

Orbit 42534

Creation date: 2024-06-27T22:41:19.594812
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_002T01_9000005810_42534cztM0_level2.fits modeM0/AS1A09_002T01_9000005810_42534cztM0_level2_quad_clean.evt
Size (bytes)300,804,48090,662,400
Size286.9 MB 86.5 MB
Events in quadrant A2,864,176611,265
Events in quadrant B2,435,993616,201
Events in quadrant C2,526,175605,234
Events in quadrant D2,902,578548,156

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114922
B0108882
C0108452
D0121842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5205120.230548%
B5205300.576369%
C5205110.211335%
D52051252.401537%

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 7297 5206 16 16 0.22% 0.31%
B 7297 5206 16 16 0.22% 0.31%
C 7297 5206 10 10 0.14% 0.19%
D 7297 5206 118 118 1.62% 2.27%

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 539710 4587.08 574 563 117.5
A 13 248 69902 589.94 574 563 117.5
A 2 79 32884 274.99 574 563 117.5
B 0 245 89233 827.09 563 549 107.2
B 5 172 70451 651.92 563 549 107.2
B 5 255 44422 409.17 563 549 107.2
C 15 214 221300 1729.59 555 560 127.6
C 15 111 85407 664.81 555 560 127.6
C 9 54 16043 121.32 555 560 127.6
D 12 233 265819 1966.75 556 543 134.9
D 2 249 182707 1350.56 556 543 134.9
D 1 52 66755 490.89 556 543 134.9

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