ASTROSAT CZTI

Data Quality Report

Orbit 06308

Creation date: 2024-06-27T15:05:24.909965
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/AS1A02_070T01_9000000832_06308cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06308cztM0_level2_quad_clean.evt
Size (bytes)342,840,96047,715,840
Size327.0 MB 45.5 MB
Events in quadrant A2,122,578298,406
Events in quadrant B2,792,763301,859
Events in quadrant C1,782,966301,453
Events in quadrant D3,431,944280,407

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0863932
B01090819
C0788556
D012959119

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3712431.158405%
B37183669.844002%
C3703250.675128%
D37032416.508237%

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 4882 3725 3 3 0.06% 0.08%
B 4882 3727 223 223 4.57% 5.98%
C 4882 3725 0 0 0.00% 0.00%
D 4882 3719 220 220 4.51% 5.92%

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 8 15 301611 3179.69 457 447 94.7
A 13 251 56578 592.63 457 447 94.7
A 0 226 4400 41.74 457 447 94.7
B 3 64 967418 11111.53 450 439 87.0
B 10 213 34001 385.66 450 439 87.0
B 4 81 24622 277.89 450 439 87.0
C 9 16 30300 288.43 444 446 103.5
C 1 16 14254 133.41 444 446 103.5
C 9 54 6235 55.93 444 446 103.5
D 2 63 931963 8569.94 438 425 108.7
D 12 220 443985 4080.65 438 425 108.7
D 12 110 257221 2362.47 438 425 108.7

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