ASTROSAT CZTI

Data Quality Report

Orbit 19930

Creation date: 2024-06-27T18:09:16.908155
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/AS1C04_009T05_9000002968_19930cztM0_level2.evt modeM0/AS1C04_009T05_9000002968_19930cztM0_level2_quad_clean.evt
Size (bytes)375,926,40087,526,080
Size358.5 MB 83.5 MB
Events in quadrant A1,998,669604,906
Events in quadrant B2,333,932597,499
Events in quadrant C3,951,920565,357
Events in quadrant D2,806,155578,172

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087660
B097350
C0148410
D0111640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4323150.346981%
B4323350.809623%
C43243538.163737%
D4324952.197040%

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 4323 4323 0 0 0.00% 0.00%
B 4323 4323 9 9 0.21% 0.21%
C 4324 4324 167 167 3.86% 3.86%
D 4324 4324 102 102 2.36% 2.36%

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 0 226 4663 39.85 518 508 104.3
A 8 205 4484 38.14 518 508 104.3
A 12 194 3934 32.86 518 508 104.3
B 0 189 104848 1105.13 515 505 94.4
B 0 197 47659 499.42 515 505 94.4
B 3 112 31982 333.38 515 505 94.4
C 3 233 1228288 10756.53 492 495 114.1
C 9 221 527197 4614.36 492 495 114.1
C 4 254 184646 1613.32 492 495 114.1
D 1 52 332314 2729.28 508 494 121.6
D 7 38 198961 1632.42 508 494 121.6
D 15 0 170431 1397.76 508 494 121.6

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