ASTROSAT CZTI

Data Quality Report

Orbit 17263

Creation date: 2024-06-27T17:34:11.416856
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_185T04_9000002552_17263cztM0_level2.evt modeM0/AS1A05_185T04_9000002552_17263cztM0_level2_quad_clean.evt
Size (bytes)259,338,24042,744,960
Size247.3 MB 40.8 MB
Events in quadrant A1,837,871254,556
Events in quadrant B1,918,284254,908
Events in quadrant C1,847,060244,445
Events in quadrant D1,961,779242,338

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084690
B086460
C084600
D090060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A422030.071090%
B422150.118455%
C422180.189529%
D4221220.521204%

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 4220 4220 0 0 0.00% 0.00%
B 4221 4221 2 2 0.05% 0.05%
C 4221 4221 0 0 0.00% 0.00%
D 4221 4221 20 20 0.47% 0.47%

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 23 11852 117.47 474 464 96.9
A 0 226 4746 44.17 474 464 96.9
A 3 137 3531 31.64 474 464 96.9
B 7 220 46848 497.99 473 461 93.1
B 12 111 10933 112.42 473 461 93.1
B 11 111 9224 94.08 473 461 93.1
C 14 238 71162 662.54 453 455 106.7
C 3 233 9589 85.59 453 455 106.7
C 13 61 3286 26.53 453 455 106.7
D 1 52 88991 784.13 459 446 112.9
D 11 176 52292 459.13 459 446 112.9
D 10 70 35803 313.11 459 446 112.9

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