ASTROSAT CZTI

Data Quality Report

Orbit 24124

Creation date: 2024-06-27T19:02:41.463372
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/AS1A07_134T02_9000003568_24124cztM0_level2.evt modeM0/AS1A07_134T02_9000003568_24124cztM0_level2_quad_clean.evt
Size (bytes)68,348,16017,962,560
Size65.2 MB 17.1 MB
Events in quadrant A424,506120,391
Events in quadrant B448,481123,099
Events in quadrant C437,529117,087
Events in quadrant D693,931111,707

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018310
B018600
C018360
D027460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91400.000000%
B91500.000000%
C91510.109290%
D91520.218579%

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 914 914 0 0 0.00% 0.00%
B 915 915 0 0 0.00% 0.00%
C 915 915 0 0 0.00% 0.00%
D 915 915 0 0 0.00% 0.00%

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 1534 59.66 110 108 23.9
A 0 226 947 35.1 110 108 23.9
A 3 137 909 33.51 110 108 23.9
B 4 52 3920 161.52 111 109 23.6
B 4 171 3062 125.16 111 109 23.6
B 4 187 3048 124.56 111 109 23.6
C 14 238 17185 625.48 107 108 27.3
C 7 247 2056 71.35 107 108 27.3
C 13 61 744 23.29 107 108 27.3
D 8 195 279066 9903.73 107 104 28.2
D 2 234 4056 140.3 107 104 28.2
D 13 138 3234 111.12 107 104 28.2

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