ASTROSAT CZTI

Data Quality Report

Orbit 28213

Creation date: 2024-06-27T19:49:14.733386
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/AS1A10_045T09_9000004072_28213cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28213cztM0_level2_quad_clean.evt
Size (bytes)417,821,76091,097,280
Size398.5 MB 86.9 MB
Events in quadrant A2,885,925597,660
Events in quadrant B2,939,592614,833
Events in quadrant C2,900,144577,110
Events in quadrant D3,522,875552,837

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123980
B0124710
C0124550
D0144630

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964470.788062%
B5965821.374686%
C5965721.207041%
D59651011.693210%

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 7119 5965 1 1 0.01% 0.02%
B 7120 5966 0 0 0.00% 0.00%
C 7120 5966 1 1 0.01% 0.02%
D 7120 5966 81 81 1.14% 1.36%

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 12 96 16980 109.29 743 730 148.7
A 13 254 8147 49.88 743 730 148.7
A 3 137 7183 43.4 743 730 148.7
B 12 111 17420 118.47 740 724 140.9
B 11 111 15768 106.75 740 724 140.9
B 14 111 15307 103.48 740 724 140.9
C 14 238 116173 693.52 706 710 166.5
C 15 208 13810 78.68 706 710 166.5
C 3 233 13527 76.98 706 710 166.5
D 1 52 524678 3126.88 705 688 167.6
D 8 195 173286 1029.97 705 688 167.6
D 5 222 80850 478.36 705 688 167.6

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