ASTROSAT CZTI

Data Quality Report

Orbit 42663

Creation date: 2024-06-27T22:42:47.289867
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/AS1A05_013T01_9000005822_42663cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42663cztM0_level2_quad_clean.evt
Size (bytes)353,727,36093,314,880
Size337.3 MB 89.0 MB
Events in quadrant A3,131,388639,126
Events in quadrant B2,804,191663,521
Events in quadrant C2,737,327625,920
Events in quadrant D4,024,196539,628

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122352
B0114722
C0108832
D0152642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5098721.412319%
B5098310.608082%
C5098340.666928%
D50983897.630443%

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 7221 5099 52 52 0.72% 1.02%
B 7221 5099 10 10 0.14% 0.20%
C 7221 5099 30 30 0.42% 0.59%
D 7221 5099 323 323 4.47% 6.33%

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 547293 4371.44 610 600 125.1
A 15 223 139891 1113.79 610 600 125.1
A 13 248 77034 611.18 610 600 125.1
B 0 245 103164 886.4 606 590 115.7
B 0 229 79627 683.01 606 590 115.7
B 10 247 78662 674.67 606 590 115.7
C 15 214 214014 1537.4 599 602 138.8
C 14 254 148649 1066.52 599 602 138.8
C 15 111 13233 90.99 599 602 138.8
D 2 249 635437 4586.1 577 562 138.4
D 13 249 443261 3197.9 577 562 138.4
D 1 47 413047 2979.64 577 562 138.4

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