ASTROSAT CZTI

Data Quality Report

Orbit 50217

Creation date: 2025-01-10T20:46:18.571511
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/AS1C09_003T01_9000006442_50217cztM0_level2.fits modeM0/AS1C09_003T01_9000006442_50217cztM0_level2_quad_clean.evt
Size (bytes)981,527,04060,405,120
Size936.1 MB 57.6 MB
Events in quadrant A6,505,721566,268
Events in quadrant B6,154,783595,037
Events in quadrant C11,260,75943,628
Events in quadrant D11,923,353184,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236971
B0226071
C0378471
D0397766

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A629782813.149119%
B6298100715.989203%
C6298595594.553827%
D6297454772.208988%

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 7397 6297 653 653 8.83% 10.37%
B 7398 6298 738 738 9.98% 11.72%
C 7397 6297 3050 3050 41.23% 48.44%
D 7397 6297 2810 2810 37.99% 44.62%

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 11 7 791324 4882.89 658 643 161.9
A 4 249 632813 3904.0 658 643 161.9
A 0 98 583394 3598.81 658 643 161.9
B 4 206 1968427 14302.09 653 632 137.6
B 10 28 1114326 8094.42 653 632 137.6
B 0 213 88026 635.19 653 632 137.6
C 4 111 4635133 100545.97 163 162 46.1
C 15 199 4330706 93942.07 163 162 46.1
C 15 182 701329 15210.34 163 162 46.1
D 7 61 6055615 63021.22 334 322 96.1
D 15 108 1652580 17196.08 334 322 96.1
D 7 45 560680 5832.0 334 322 96.1

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