ASTROSAT CZTI

Data Quality Report

Orbit 48099

Creation date: 2024-08-20T14:04:38.666339
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_071T03_9000006400_48099cztM0_level2.fits modeM0/AS1A13_071T03_9000006400_48099cztM0_level2_quad_clean.evt
Size (bytes)418,510,08086,451,840
Size399.1 MB 82.4 MB
Events in quadrant A7,244,169729,686
Events in quadrant B1,140,65146,444
Events in quadrant C2,898,735728,299
Events in quadrant D3,695,679656,921

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260072
B069862
C0134592
D0156852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65004346.676923%
B65006500100.000000%
C6500270.415385%
D65001251.923077%

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 7660 6500 153 153 2.00% 2.35%
B 7659 6499 1 1 0.01% 0.02%
C 7660 6501 1 1 0.01% 0.02%
D 7660 6501 90 90 1.17% 1.38%

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 4333251 28114.35 732 716 154.1
A 14 248 53145 340.22 732 716 154.1
A 13 254 12886 78.97 732 716 154.1
B 2 177 897221 76157.21 48 46 11.8
B 4 21 26370 2234.53 48 46 11.8
B 0 200 11657 985.61 48 46 11.8
C 12 2 31520 181.08 725 728 170.0
C 3 233 18851 106.58 725 728 170.0
C 14 254 8168 43.75 725 728 170.0
D 2 165 302342 1666.32 716 693 181.0
D 2 37 179585 988.2 716 693 181.0
D 7 67 128963 708.57 716 693 181.0

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