ASTROSAT CZTI

Data Quality Report

Orbit 41149

Creation date: 2024-06-27T22:25:04.240960
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/AS1A12_025T12_9000005604_41149cztM0_level2.fits modeM0/AS1A12_025T12_9000005604_41149cztM0_level2_quad_clean.evt
Size (bytes)116,519,04034,329,600
Size111.1 MB 32.7 MB
Events in quadrant A1,046,890226,368
Events in quadrant B985,054233,312
Events in quadrant C1,206,591219,262
Events in quadrant D905,310205,990

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043391
B043390
C048050
D043630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A214000.000000%
B214020.093458%
C2140231.074766%
D214010.046729%

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 2140 2140 0 0 0.00% 0.00%
B 2140 2140 0 0 0.00% 0.00%
C 2140 2140 18 18 0.84% 0.84%
D 2140 2140 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 10 83 122342 2433.74 236 231 50.2
A 12 189 9148 177.72 236 231 50.2
A 2 79 3990 74.92 236 231 50.2
B 7 202 44804 928.1 233 226 48.0
B 0 190 16138 331.28 233 226 48.0
B 12 111 6190 124.17 233 226 48.0
C 9 54 120895 2196.28 225 226 54.9
C 14 254 106064 1926.34 225 226 54.9
C 15 214 87159 1582.26 225 226 54.9
D 2 249 30594 535.2 226 220 56.8
D 2 234 9790 168.63 226 220 56.8
D 13 249 9736 167.68 226 220 56.8

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