ASTROSAT CZTI

Data Quality Report

Orbit 48595

Creation date: 2024-09-22T13:23:40.743266
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/AS1A13_037T01_9000006436_48595cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48595cztM0_level2_quad_clean.evt
Size (bytes)512,876,160113,889,600
Size489.1 MB 108.6 MB
Events in quadrant A7,443,682715,780
Events in quadrant B4,013,696769,223
Events in quadrant C3,341,267759,726
Events in quadrant D3,599,370678,275

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274862
B0173652
C0159262
D0167652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75555857.743216%
B75554636.128392%
C75542523.335981%
D75543184.209690%

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 7705 7557 3 3 0.04% 0.04%
B 7705 7557 29 29 0.38% 0.38%
C 7704 7556 9 9 0.12% 0.12%
D 7704 7556 52 52 0.67% 0.69%

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 10 83 4199110 23946.36 832 811 175.3
A 13 248 28037 155.29 832 811 175.3
A 13 254 14233 76.56 832 811 175.3
B 12 16 614067 3590.86 844 813 170.8
B 0 197 26724 151.72 844 813 170.8
B 0 183 26520 150.53 844 813 170.8
C 12 249 28848 140.21 842 843 199.7
C 12 250 24119 116.54 842 843 199.7
C 14 67 5836 25.0 842 843 199.7
D 2 249 247445 1168.08 836 805 211.1
D 13 171 136771 643.93 836 805 211.1
D 2 234 36640 169.71 836 805 211.1

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