ASTROSAT CZTI

Data Quality Report

Orbit 26035

Creation date: 2024-06-27T19:24:05.843767
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/AS1A09_033T02_9000003762_26035cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26035cztM0_level2_quad_clean.evt
Size (bytes)464,564,16095,264,640
Size443.0 MB 90.9 MB
Events in quadrant A3,389,626610,505
Events in quadrant B3,299,722625,732
Events in quadrant C3,184,446594,212
Events in quadrant D3,739,430586,772

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144970
B0141400
C0138290
D0156890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6706550.820161%
B6706570.849985%
C6706811.207874%
D67051792.669650%

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 7706 6706 21 21 0.27% 0.31%
B 7706 6706 5 5 0.06% 0.07%
C 7706 6706 0 0 0.00% 0.00%
D 7705 6706 166 166 2.15% 2.48%

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 0 13 257536 1580.75 813 797 162.4
A 13 254 9793 55.39 813 797 162.4
A 3 137 7639 42.13 813 797 162.4
B 10 245 98191 630.95 810 790 154.4
B 0 229 19572 121.67 810 790 154.4
B 12 111 19000 117.96 810 790 154.4
C 14 238 126285 690.07 779 785 181.9
C 3 233 22815 121.13 779 785 181.9
C 13 61 5309 24.88 779 785 181.9
D 1 52 572050 3052.27 778 760 187.2
D 12 233 124484 661.03 778 760 187.2
D 7 223 41340 216.81 778 760 187.2

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