ASTROSAT CZTI

Data Quality Report

Orbit 07599

Creation date: 2024-06-27T15:21:38.564746
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/AS1G06_117T01_9000001046_07599cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07599cztM0_level2_quad_clean.evt
Size (bytes)642,147,84068,918,400
Size612.4 MB 65.7 MB
Events in quadrant A3,473,440424,110
Events in quadrant B3,411,555428,604
Events in quadrant C8,267,357375,329
Events in quadrant D3,853,962403,517

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143323
B0140982
C0292292
D0156842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65221322.023919%
B65221181.809261%
C6522143321.971788%
D65221572.407237%

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 7812 6522 0 0 0.00% 0.00%
B 7812 6522 0 0 0.00% 0.00%
C 7812 6522 889 889 11.38% 13.63%
D 7812 6522 51 51 0.65% 0.78%

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 15 239 160884 932.73 861 845 171.6
A 0 226 8071 42.11 861 845 171.6
A 12 194 7431 38.38 861 845 171.6
B 0 214 28293 171.5 860 840 160.1
B 4 173 27126 164.21 860 840 160.1
B 12 111 16312 96.65 860 840 160.1
C 9 68 4151110 23496.49 775 778 176.6
C 4 254 892642 5049.16 775 778 176.6
C 8 229 147107 828.42 775 778 176.6
D 5 233 246932 1215.53 834 808 202.5
D 1 52 154845 760.74 834 808 202.5
D 2 14 97384 476.96 834 808 202.5

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