ASTROSAT CZTI

Data Quality Report

Orbit 05888

Creation date: 2024-06-27T15:00:28.541005
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_023T01_9000000762_05888cztM0_level2.evt modeM0/AS1G06_023T01_9000000762_05888cztM0_level2_quad_clean.evt
Size (bytes)384,252,48073,448,640
Size366.5 MB 70.0 MB
Events in quadrant A2,410,912477,453
Events in quadrant B2,681,445472,311
Events in quadrant C2,404,055463,376
Events in quadrant D3,769,551429,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112712
B0120092
C0112992
D0149242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5456250.458211%
B5456450.824780%
C5456320.586510%
D54562634.820381%

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 7596 5458 0 0 0.00% 0.00%
B 7596 5458 0 0 0.00% 0.00%
C 7596 5458 0 0 0.00% 0.00%
D 7595 5457 108 108 1.42% 1.98%

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 6693 47.87 624 609 127.1
A 0 226 6081 43.05 624 609 127.1
A 12 194 6006 42.46 624 609 127.1
B 15 204 97238 805.97 631 617 119.9
B 4 200 44553 366.49 631 617 119.9
B 0 245 27566 224.8 631 617 119.9
C 1 16 16081 108.43 609 613 142.7
C 8 208 7047 45.1 609 613 142.7
C 13 61 4890 29.98 609 613 142.7
D 1 20 708992 4862.8 592 572 145.7
D 2 152 351252 2407.17 592 572 145.7
D 2 14 127887 873.93 592 572 145.7

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