ASTROSAT CZTI

Data Quality Report

Orbit 08425

Creation date: 2024-06-27T15:32:35.507047
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/AS1G07_053T01_9000001186_08425cztM0_level2.evt modeM0/AS1G07_053T01_9000001186_08425cztM0_level2_quad_clean.evt
Size (bytes)334,128,96050,716,800
Size318.7 MB 48.4 MB
Events in quadrant A2,070,070315,253
Events in quadrant B2,184,543320,164
Events in quadrant C1,966,631313,838
Events in quadrant D3,610,555289,007

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0882
B0884
C0884
D0884

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09130415
B09319388
C08845376
D013896396

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4212390.925926%
B421850.118540%
C421500.000000%
D42162415.716319%

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 4407 4277 7 7 0.16% 0.16%
B 4407 4278 5 5 0.11% 0.12%
C 4407 4274 0 0 0.00% 0.00%
D 4407 4280 246 246 5.58% 5.75%

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 14 111 45232 428.35 512 502 104.4
A 5 16 24992 234.52 512 502 104.4
A 15 236 23731 222.45 512 502 104.4
B 0 214 93900 961.02 513 502 97.2
B 4 81 23790 239.62 513 502 97.2
B 4 173 15169 150.92 513 502 97.2
C 14 67 12895 106.43 499 501 116.4
C 9 160 4018 30.2 499 501 116.4
C 13 61 3633 26.89 499 501 116.4
D 12 221 1129348 8598.85 490 478 131.3
D 1 52 278865 2120.54 490 478 131.3
D 12 227 188472 1431.99 490 478 131.3

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