ASTROSAT CZTI

Data Quality Report

Orbit 04603

Creation date: 2024-06-27T14:44:13.164506
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/AS1G05_167T02_9000000574_04603cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04603cztM0_level2_quad_clean.evt
Size (bytes)427,818,24072,973,440
Size408.0 MB 69.6 MB
Events in quadrant A2,902,009445,228
Events in quadrant B3,111,133457,763
Events in quadrant C3,433,635451,307
Events in quadrant D3,086,677420,869

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128263
B0131362
C0139942
D0137082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6225310.497992%
B6225360.578313%
C6225240.385542%
D6225480.771084%

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 8895 6227 0 0 0.00% 0.00%
B 8895 6227 0 0 0.00% 0.00%
C 8895 6227 0 0 0.00% 0.00%
D 8895 6227 23 23 0.26% 0.37%

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 7928 46.78 751 737 153.7
A 12 194 7333 42.91 751 737 153.7
A 0 247 6825 39.6 751 737 153.7
B 15 204 42012 284.36 765 747 145.1
B 0 228 38693 261.49 765 747 145.1
B 4 172 21604 143.73 765 747 145.1
C 14 48 552461 3199.05 733 738 172.5
C 12 4 12186 66.38 733 738 172.5
C 9 54 6371 32.66 733 738 172.5
D 13 235 184275 1060.92 716 697 173.0
D 2 136 90744 520.39 716 697 173.0
D 10 15 50712 289.04 716 697 173.0

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