ASTROSAT CZTI

Data Quality Report

Orbit 22511

Creation date: 2024-06-27T18:42:09.613493
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/AS1A08_003T01_9000003342_22511cztM0_level2.evt modeM0/AS1A08_003T01_9000003342_22511cztM0_level2_quad_clean.evt
Size (bytes)471,983,04095,094,720
Size450.1 MB 90.7 MB
Events in quadrant A3,276,097603,732
Events in quadrant B3,488,235615,939
Events in quadrant C3,399,759597,948
Events in quadrant D3,663,721584,178

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141602
B0147322
C0142813
D0157142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6860140.204082%
B6860871.268222%
C6859791.151771%
D68591371.997376%

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 7645 6861 0 0 0.00% 0.00%
B 7645 6861 23 23 0.30% 0.34%
C 7644 6860 0 0 0.00% 0.00%
D 7644 6860 91 91 1.19% 1.33%

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 11158 59.96 847 830 172.3
A 3 1 9049 47.71 847 830 172.3
A 0 226 7407 38.18 847 830 172.3
B 15 33 110537 677.18 844 821 162.0
B 0 228 37818 228.35 844 821 162.0
B 12 111 19773 116.97 844 821 162.0
C 14 238 129852 669.4 822 828 192.7
C 10 91 43066 219.14 822 828 192.7
C 0 10 24496 122.79 822 828 192.7
D 1 52 466959 2335.06 821 796 199.6
D 12 227 31764 155.12 821 796 199.6
D 2 234 29176 142.16 821 796 199.6

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