ASTROSAT CZTI

Data Quality Report

Orbit 15380

Creation date: 2024-06-27T17:07:44.456116
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/AS1C03_001T01_9000002270_15380cztM0_level2.evt modeM0/AS1C03_001T01_9000002270_15380cztM0_level2_quad_clean.evt
Size (bytes)219,870,72034,611,840
Size209.7 MB 33.0 MB
Events in quadrant A1,525,492214,280
Events in quadrant B1,932,198210,556
Events in quadrant C1,374,593217,563
Events in quadrant D1,636,704207,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063092
B074421
C057081
D067141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2771883.175749%
B27712358.480693%
C2771511.840491%
D27711214.366655%

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 3577 2772 7 7 0.20% 0.25%
B 3577 2772 103 103 2.88% 3.72%
C 3577 2772 0 0 0.00% 0.00%
D 3577 2772 70 70 1.96% 2.53%

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 14 238 119498 1682.8 339 330 70.8
A 14 237 59294 832.65 339 330 70.8
A 3 80 37209 520.78 339 330 70.8
B 10 245 539218 8125.4 334 325 66.3
B 8 3 44544 666.73 334 325 66.3
B 0 229 33505 500.29 334 325 66.3
C 3 233 74682 934.59 333 333 79.6
C 13 61 2361 25.49 333 333 79.6
C 10 22 1987 20.79 333 333 79.6
D 9 68 209865 2565.54 329 318 81.7
D 5 222 90056 1098.69 329 318 81.7
D 7 38 33788 409.78 329 318 81.7

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