ASTROSAT CZTI

Data Quality Report

Orbit 08063

Creation date: 2024-06-27T15:27:28.383102
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/AS1A02_055T01_9000001114_08063cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08063cztM0_level2_quad_clean.evt
Size (bytes)465,897,600106,139,520
Size444.3 MB 101.2 MB
Events in quadrant A3,200,204678,564
Events in quadrant B3,694,127696,329
Events in quadrant C3,269,949707,266
Events in quadrant D3,495,333670,644

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139293
B0154162
C0140202
D0149142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6623741.117318%
B66231932.914087%
C6623681.026725%
D66231432.159142%

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 9288 6626 0 0 0.00% 0.00%
B 9288 6626 48 48 0.52% 0.72%
C 9288 6626 0 0 0.00% 0.00%
D 9288 6626 54 54 0.58% 0.81%

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 0 226 7766 41.67 829 811 166.9
A 12 194 7298 38.87 829 811 166.9
A 13 254 4390 21.44 829 811 166.9
B 4 239 278015 1748.09 840 820 158.6
B 4 81 79771 497.89 840 820 158.6
B 11 51 35616 219.44 840 820 158.6
C 1 16 21763 109.98 830 835 190.3
C 6 15 9689 46.53 830 835 190.3
C 13 61 6311 28.78 830 835 190.3
D 1 52 174647 805.22 812 795 215.9
D 1 83 126418 581.84 812 795 215.9
D 12 233 47516 216.39 812 795 215.9

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