ASTROSAT CZTI

Data Quality Report

Orbit 30134

Creation date: 2024-06-27T20:11:19.368722
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/AS1A10_097T01_9000004334_30134cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30134cztM0_level2_quad_clean.evt
Size (bytes)485,236,80072,912,960
Size462.8 MB 69.5 MB
Events in quadrant A2,065,490512,623
Events in quadrant B2,924,295518,671
Events in quadrant C7,528,715407,498
Events in quadrant D1,915,694496,391

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086740
B0115460
C0250010
D081440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3850461.194805%
B3851220.571280%
C3851227058.945728%
D385130.077902%

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 3850 3850 38 38 0.99% 0.99%
B 3851 3851 0 0 0.00% 0.00%
C 3850 3850 1760 1760 45.71% 45.71%
D 3851 3851 0 0 0.00% 0.00%

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 0 13 321374 3495.92 452 443 91.8
A 13 254 7142 72.97 452 443 91.8
A 3 137 4496 44.15 452 443 91.8
B 6 159 1148649 13144.73 453 442 87.4
B 12 111 10394 113.93 453 442 87.4
B 11 111 9500 103.7 453 442 87.4
C 3 233 5931488 64991.39 391 394 91.3
C 14 238 62575 681.36 391 394 91.3
C 2 114 7595 78.91 391 394 91.3
D 8 195 137905 1302.39 443 432 105.6
D 12 227 26059 242.78 443 432 105.6
D 7 1 25473 237.23 443 432 105.6

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