ASTROSAT CZTI

Data Quality Report

Orbit 05764

Creation date: 2024-06-27T14:58:52.625230
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/AS1G06_002T01_9000000742_05764cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05764cztM0_level2_quad_clean.evt
Size (bytes)283,020,48040,855,680
Size269.9 MB 39.0 MB
Events in quadrant A2,104,036237,477
Events in quadrant B2,144,398240,004
Events in quadrant C1,969,576234,266
Events in quadrant D2,063,956227,157

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09598426
B09341397
C09184382
D09491360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0904
B0902
C0900
D0906

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42161764.174573%
B42321553.662571%
C42321082.551985%
D42431272.993165%

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 4653 4380 19 19 0.41% 0.43%
B 4653 4383 3 3 0.06% 0.07%
C 4653 4386 0 0 0.00% 0.00%
D 4653 4383 17 17 0.37% 0.39%

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 15 236 143866 1346.58 509 497 106.5
A 0 226 4873 41.1 509 497 106.5
A 12 194 4769 40.12 509 497 106.5
B 15 204 58090 572.38 518 504 100.6
B 0 219 44487 437.17 518 504 100.6
B 15 54 15185 145.92 518 504 100.6
C 8 128 5007 38.12 502 503 118.2
C 13 61 4012 29.7 502 503 118.2
C 8 112 2444 16.43 502 503 118.2
D 2 14 50983 406.17 503 486 124.3
D 12 110 40297 320.22 503 486 124.3
D 12 233 21643 170.17 503 486 124.3

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