ASTROSAT CZTI

Data Quality Report

Orbit 17050

Creation date: 2024-06-27T17:31:21.595545
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_004T01_9000002532_17050cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17050cztM0_level2_quad_clean.evt
Size (bytes)489,890,88076,913,280
Size467.2 MB 73.4 MB
Events in quadrant A3,240,085481,071
Events in quadrant B3,414,577499,179
Events in quadrant C4,365,752460,578
Events in quadrant D3,385,384445,109

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134252
B0139982
C0179732
D0141853

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6351200.314911%
B6351380.598331%
C63511021.606046%
D6350891.401575%

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 7732 6353 7 7 0.09% 0.11%
B 7732 6353 2 2 0.03% 0.03%
C 7732 6353 0 0 0.00% 0.00%
D 7731 6352 59 59 0.76% 0.93%

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 4 2 37192 219.22 833 818 165.9
A 0 226 7394 39.63 833 818 165.9
A 12 194 5968 31.04 833 818 165.9
B 3 64 61922 390.89 844 826 156.3
B 0 230 21251 130.68 844 826 156.3
B 12 111 17736 108.19 844 826 156.3
C 3 233 1106981 6001.67 800 807 184.3
C 14 238 125418 676.09 800 807 184.3
C 13 61 5736 26.74 800 807 184.3
D 10 70 227114 1171.8 799 778 193.2
D 5 222 117863 606.18 799 778 193.2
D 2 234 22025 110.0 799 778 193.2

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