ASTROSAT CZTI

Data Quality Report

Orbit 10369

Creation date: 2024-06-27T15:58:29.539610
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_048T01_9000001494_10369cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10369cztM0_level2_quad_clean.evt
Size (bytes)505,658,88086,621,760
Size482.2 MB 82.6 MB
Events in quadrant A2,875,176565,444
Events in quadrant B3,161,789562,870
Events in quadrant C2,822,550561,271
Events in quadrant D6,016,417484,209

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213678430
B0231889599
C0218908884
D03252610091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052
B063
C063
D063

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021884
B021880
C021878
D021076

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6352440.692695%
B63141031.631296%
C6402280.437363%
D665095914.421053%

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 7379 6899 0 0 0.00% 0.00%
B 7379 6869 41 41 0.56% 0.60%
C 7378 6914 1 1 0.01% 0.01%
D 7379 6908 890 890 12.06% 12.88%

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 15 28751 185.32 734 717 151.3
A 13 251 17255 109.32 734 717 151.3
A 0 226 6666 39.33 734 717 151.3
B 4 239 236730 1683.79 728 710 140.2
B 0 219 34950 244.27 728 710 140.2
B 0 214 26316 182.68 728 710 140.2
C 14 234 10442 57.79 720 725 168.1
C 13 61 5462 28.17 720 725 168.1
C 8 222 2690 11.69 720 725 168.1
D 12 233 2348682 13850.32 702 681 169.5
D 1 52 405054 2385.3 702 681 169.5
D 13 104 175218 1029.55 702 681 169.5

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