ASTROSAT CZTI

Data Quality Report

Orbit 29600

Creation date: 2024-06-27T20:05:54.040090
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/AS1T03_286T01_9000004268_29600cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29600cztM0_level2_quad_clean.evt
Size (bytes)481,610,880110,833,920
Size459.3 MB 105.7 MB
Events in quadrant A3,035,213727,806
Events in quadrant B3,139,099767,628
Events in quadrant C3,200,672739,437
Events in quadrant D4,794,591693,912

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130642
B0133532
C0135352
D0185973

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6134190.309749%
B6134430.701011%
C6134981.597652%
D61332854.646992%

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 7419 6135 0 0 0.00% 0.00%
B 7419 6134 1 1 0.01% 0.02%
C 7419 6135 0 0 0.00% 0.00%
D 7418 6134 199 199 2.68% 3.24%

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 11537 69.88 783 768 154.1
A 3 137 7061 40.83 783 768 154.1
A 0 226 6496 37.17 783 768 154.1
B 0 190 17925 116.54 794 776 147.2
B 12 111 17470 113.44 794 776 147.2
B 11 111 15623 100.89 794 776 147.2
C 14 238 127852 707.2 778 785 179.7
C 2 114 14364 75.57 778 785 179.7
C 3 233 12015 62.5 778 785 179.7
D 7 238 785411 4386.19 758 739 178.9
D 12 227 558444 3117.48 758 739 178.9
D 8 195 349061 1947.06 758 739 178.9

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