ASTROSAT CZTI

Data Quality Report

Orbit 25313

Creation date: 2024-06-27T19:16:12.808683
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_022T01_9000003702_25313cztM0_level2.evt modeM0/AS1A09_022T01_9000003702_25313cztM0_level2_quad_clean.evt
Size (bytes)630,103,68071,300,160
Size600.9 MB 68.0 MB
Events in quadrant A3,148,672486,899
Events in quadrant B3,315,654488,795
Events in quadrant C3,180,596461,003
Events in quadrant D9,003,380274,083

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133590
B0138350
C0134160
D0310980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6409500.780153%
B6409560.873771%
C6409861.341863%
D6409247538.617569%

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 7509 6410 0 0 0.00% 0.00%
B 7509 6409 1 1 0.01% 0.02%
C 7509 6410 6 6 0.08% 0.09%
D 7509 6410 1972 1972 26.26% 30.76%

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 10388 58.86 816 799 162.9
A 3 137 7201 39.3 816 799 162.9
A 0 226 7058 38.42 816 799 162.9
B 3 64 120133 786.52 803 784 151.7
B 0 190 33590 216.19 803 784 151.7
B 12 111 18395 116.06 803 784 151.7
C 14 238 123906 692.09 766 771 177.9
C 3 233 28132 153.78 766 771 177.9
C 9 16 22939 124.6 766 771 177.9
D 12 235 4270965 29273.27 609 592 145.9
D 7 238 938898 6432.06 609 592 145.9
D 1 52 746961 5116.34 609 592 145.9

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