ASTROSAT CZTI

Data Quality Report

Orbit 30730

Creation date: 2024-06-27T20:18:58.994953
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_071T11_9000004436_30730cztM0_level2.evt modeM0/AS1A10_071T11_9000004436_30730cztM0_level2_quad_clean.evt
Size (bytes)711,262,08068,195,520
Size678.3 MB 65.0 MB
Events in quadrant A3,895,930426,599
Events in quadrant B5,719,428429,212
Events in quadrant C3,768,390400,986
Events in quadrant D7,724,458359,963

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155942
B0210712
C0151722
D0273622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64201352.102804%
B64201812.819315%
C64201432.227414%
D641969310.796074%

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 7750 6420 31 31 0.40% 0.48%
B 7750 6420 6 6 0.08% 0.09%
C 7750 6420 0 0 0.00% 0.00%
D 7749 6419 572 572 7.38% 8.91%

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 13 166449 888.65 956 945 186.2
A 8 192 44102 231.73 956 945 186.2
A 13 254 11713 57.82 956 945 186.2
B 6 159 1749666 10052.67 944 925 174.0
B 6 36 218735 1252.09 944 925 174.0
B 12 111 20598 113.09 944 925 174.0
C 14 238 146560 713.2 886 898 204.2
C 3 233 106015 514.68 886 898 204.2
C 0 10 30750 146.16 886 898 204.2
D 8 195 3209967 14653.43 862 849 219.0
D 10 253 624079 2845.78 862 849 219.0
D 13 174 400792 1826.21 862 849 219.0

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