ASTROSAT CZTI

Data Quality Report

Orbit 16037

Creation date: 2024-06-27T17:17:06.580187
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/AS1G08_012T01_9000002370_16037cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16037cztM0_level2_quad_clean.evt
Size (bytes)463,910,40087,125,760
Size442.4 MB 83.1 MB
Events in quadrant A3,360,288553,173
Events in quadrant B3,412,704564,130
Events in quadrant C3,536,542546,602
Events in quadrant D3,316,175538,803

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140583
B0141742
C0145282
D0139722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6246871.392891%
B6246941.504963%
C62461512.417547%
D6246771.232789%

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 8877 6247 1 1 0.01% 0.02%
B 8877 6247 0 0 0.00% 0.00%
C 8877 6247 0 0 0.00% 0.00%
D 8877 6247 2 2 0.02% 0.03%

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 9 143 22335 124.56 868 853 172.5
A 0 226 7649 39.41 868 853 172.5
A 12 194 6422 32.29 868 853 172.5
B 0 230 19743 116.08 868 848 162.8
B 12 111 18188 106.53 868 848 162.8
B 11 111 15792 91.81 868 848 162.8
C 14 238 132755 684.18 842 852 192.8
C 3 233 115399 594.15 842 852 192.8
C 13 61 5917 26.27 842 852 192.8
D 12 110 38047 180.32 856 835 206.4
D 2 152 26070 122.28 856 835 206.4
D 2 234 20605 95.8 856 835 206.4

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