ASTROSAT CZTI

Data Quality Report

Orbit 04747

Creation date: 2024-06-27T14:46:17.822231
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/AS1G05_195T01_9000000598_04747cztM0_level2.evt modeM0/AS1G05_195T01_9000000598_04747cztM0_level2_quad_clean.evt
Size (bytes)292,872,96040,916,160
Size279.3 MB 39.0 MB
Events in quadrant A1,837,594244,376
Events in quadrant B2,144,846244,020
Events in quadrant C1,910,855245,755
Events in quadrant D2,705,561224,502

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081672
B090391
C083391
D0108561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3961140.353446%
B39611022.575107%
C3961170.429185%
D39613067.725322%

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 5296 3962 0 0 0.00% 0.00%
B 5296 3962 50 50 0.94% 1.26%
C 5296 3962 14 14 0.26% 0.35%
D 5296 3962 248 248 4.68% 6.26%

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 10 17 8561 81.85 472 462 98.9
A 7 16 6442 60.44 472 462 98.9
A 0 226 4970 45.56 472 462 98.9
B 14 167 229715 2473.86 478 465 92.7
B 15 204 25742 272.77 478 465 92.7
B 5 200 16815 176.43 478 465 92.7
C 14 48 77076 711.91 461 462 107.6
C 8 128 11115 98.99 461 462 107.6
C 8 208 10346 91.84 461 462 107.6
D 13 239 509080 4830.76 435 422 105.3
D 1 31 264228 2505.38 435 422 105.3
D 12 217 133395 1262.85 435 422 105.3

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