ASTROSAT CZTI

Data Quality Report

Orbit 43433

Creation date: 2024-06-27T22:51:56.093545
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/AS1A12_018T01_9000005874_43433cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43433cztM0_level2_quad_clean.evt
Size (bytes)340,833,60083,592,000
Size325.0 MB 79.7 MB
Events in quadrant A2,860,187556,492
Events in quadrant B2,391,156577,307
Events in quadrant C2,422,466554,237
Events in quadrant D4,539,457480,335

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117182
B0108412
C0105552
D0172792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5177521.004443%
B5177250.482905%
C517770.135213%
D51774037.784431%

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 7180 5178 35 35 0.49% 0.68%
B 7180 5178 13 13 0.18% 0.25%
C 7180 5178 1 1 0.01% 0.02%
D 7180 5177 432 432 6.02% 8.34%

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 569329 5127.0 544 534 110.9
A 15 237 133992 1202.96 544 534 110.9
A 13 248 32669 289.66 544 534 110.9
B 0 189 96249 915.7 544 529 104.5
B 0 245 46669 441.4 544 529 104.5
B 0 186 28974 272.12 544 529 104.5
C 15 214 218307 1754.19 530 530 124.1
C 3 233 84031 672.6 530 530 124.1
C 0 207 47469 378.09 530 530 124.1
D 1 52 1608365 12798.1 511 495 125.6
D 2 16 406933 3235.11 511 495 125.6
D 13 249 217750 1729.28 511 495 125.6

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