ASTROSAT CZTI

Data Quality Report

Orbit 08861

Creation date: 2024-06-27T15:38:12.837271
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_028T01_9000001232_08861cztM0_level2.evt modeM0/AS1G07_028T01_9000001232_08861cztM0_level2_quad_clean.evt
Size (bytes)263,517,12047,283,840
Size251.3 MB 45.1 MB
Events in quadrant A1,887,196294,784
Events in quadrant B2,009,991294,261
Events in quadrant C1,784,842289,863
Events in quadrant D2,035,670281,675

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09828
B09812
C09820
D09814

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099751914
B0103821987
C096601790
D0103331951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062
B062
C062
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3804431.130389%
B3804711.866456%
C3824320.836820%
D3840491.276042%

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 5343 4424 0 0 0.00% 0.00%
B 5341 4419 16 16 0.30% 0.36%
C 5342 4388 0 0 0.00% 0.00%
D 5343 4405 4 4 0.07% 0.09%

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 8 5 79269 813.42 465 455 96.9
A 13 248 10435 103.0 465 455 96.9
A 3 1 4964 46.53 465 455 96.9
B 10 16 103479 1140.61 464 454 90.3
B 4 48 56678 622.46 464 454 90.3
B 0 214 12235 130.43 464 454 90.3
C 14 234 7521 65.8 452 454 107.4
C 8 128 4538 38.03 452 454 107.4
C 13 61 3417 27.59 452 454 107.4
D 8 195 169808 1501.3 455 440 112.8
D 5 97 34571 302.54 455 440 112.8
D 5 81 24004 208.87 455 440 112.8

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