ASTROSAT CZTI

Data Quality Report

Orbit 27613

Creation date: 2024-06-27T19:42:10.593394
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/AS1T03_257T01_9000003976_27613cztM0_level2.evt modeM0/AS1T03_257T01_9000003976_27613cztM0_level2_quad_clean.evt
Size (bytes)513,046,08085,786,560
Size489.3 MB 81.8 MB
Events in quadrant A2,967,401558,923
Events in quadrant B4,840,666538,873
Events in quadrant C3,068,406537,924
Events in quadrant D4,231,494519,968

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130080
B0184250
C0132650
D0168730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6332370.584334%
B633376512.079583%
C6333661.042160%
D63331812.858045%

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 7367 6333 1 1 0.01% 0.02%
B 7368 6334 184 184 2.50% 2.90%
C 7368 6334 1 1 0.01% 0.02%
D 7368 6334 176 176 2.39% 2.78%

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 13 254 10635 63.57 766 749 155.5
A 8 192 7350 42.45 766 749 155.5
A 3 137 7337 42.37 766 749 155.5
B 3 64 1721140 12282.24 739 720 140.1
B 10 245 108327 768.22 739 720 140.1
B 0 230 56055 395.04 739 720 140.1
C 14 238 117430 678.87 736 742 171.9
C 2 16 76288 439.51 736 742 171.9
C 13 61 5247 26.21 736 742 171.9
D 1 52 769993 4359.05 739 718 176.5
D 2 250 253280 1431.13 739 718 176.5
D 7 80 146584 826.54 739 718 176.5

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