ASTROSAT CZTI

Data Quality Report

Orbit 11160

Creation date: 2024-06-27T16:09:01.459892
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/AS1A04_058T01_9000001628_11160cztM0_level2.evt modeM0/AS1A04_058T01_9000001628_11160cztM0_level2_quad_clean.evt
Size (bytes)265,656,96046,471,680
Size253.4 MB 44.3 MB
Events in quadrant A2,337,682282,146
Events in quadrant B1,872,097298,320
Events in quadrant C1,512,300302,671
Events in quadrant D2,086,586278,304

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09391194
B08230334
C07148109
D08883278

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0722
B0722
C0722
D0722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34621524.390526%
B3453782.258905%
C347830.086256%
D3449401.159756%

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 3500 3491 100 100 2.86% 2.86%
B 3498 3485 36 36 1.03% 1.03%
C 3508 3499 0 0 0.00% 0.00%
D 3491 3480 29 29 0.83% 0.83%

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 14 238 604058 7615.87 387 380 79.3
A 8 5 150653 1895.81 387 380 79.3
A 8 15 72970 915.78 387 380 79.3
B 4 239 250457 3362.0 397 388 74.4
B 15 204 31063 412.4 397 388 74.4
B 0 214 10749 139.3 397 388 74.4
C 14 234 4132 41.79 386 388 89.6
C 13 61 2946 28.55 386 388 89.6
C 5 128 1984 17.81 386 388 89.6
D 10 157 394366 4200.88 369 360 93.8
D 5 97 81011 859.9 369 360 93.8
D 10 199 30405 320.34 369 360 93.8

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