ASTROSAT CZTI

Data Quality Report

Orbit 25672

Creation date: 2024-06-27T19:20:14.239599
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/AS1A09_016T03_9000003740_25672cztM0_level2.evt modeM0/AS1A09_016T03_9000003740_25672cztM0_level2_quad_clean.evt
Size (bytes)264,291,84045,158,400
Size252.0 MB 43.1 MB
Events in quadrant A2,466,153282,580
Events in quadrant B1,679,039293,999
Events in quadrant C1,650,484276,135
Events in quadrant D1,972,875270,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094300
B071120
C070750
D079660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34412527.323452%
B3442812.353283%
C34421022.963393%
D3442641.859384%

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 3441 3441 116 116 3.37% 3.37%
B 3442 3442 0 0 0.00% 0.00%
C 3442 3442 0 0 0.00% 0.00%
D 3442 3442 6 6 0.17% 0.17%

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 12 96 782358 8997.18 418 407 86.9
A 8 192 71451 817.44 418 407 86.9
A 13 254 4436 46.36 418 407 86.9
B 0 245 19432 231.38 419 409 82.2
B 12 111 10134 118.29 419 409 82.2
B 0 190 10030 117.02 419 409 82.2
C 14 238 65386 676.49 404 405 96.1
C 2 16 4348 41.05 404 405 96.1
C 5 112 4174 39.24 404 405 96.1
D 8 195 324267 3181.26 412 398 101.8
D 2 244 62908 614.01 412 398 101.8
D 2 234 15328 146.65 412 398 101.8

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