ASTROSAT CZTI

Data Quality Report

Orbit 09300

Creation date: 2024-06-27T15:44:09.387164
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_077T03_9000001310_09300cztM0_level2.evt modeM0/AS1G07_077T03_9000001310_09300cztM0_level2_quad_clean.evt
Size (bytes)386,242,56060,678,720
Size368.3 MB 57.9 MB
Events in quadrant A4,014,710355,169
Events in quadrant B2,257,132389,417
Events in quadrant C2,173,854383,521
Events in quadrant D2,919,765366,776

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153137
B0100911
C099713
D01213210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48814388.973571%
B48831312.682777%
C4882891.823023%
D48803156.454918%

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 5238 4884 196 196 3.74% 4.01%
B 5238 4884 0 0 0.00% 0.00%
C 5238 4884 0 0 0.00% 0.00%
D 5238 4883 216 216 4.12% 4.42%

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 5 1358012 12289.1 533 520 110.5
A 15 223 365130 3300.74 533 520 110.5
A 15 239 110373 994.48 533 520 110.5
B 0 214 47464 430.99 556 541 108.9
B 0 213 22510 201.79 556 541 108.9
B 4 80 16846 149.76 556 541 108.9
C 14 67 35217 274.77 542 544 126.2
C 8 128 10940 82.38 542 544 126.2
C 8 112 5225 37.1 542 544 126.2
D 12 227 604695 4632.35 526 511 130.4
D 1 52 115221 879.49 526 511 130.4
D 7 71 105966 808.54 526 511 130.4

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